MIC37110/MIC37112 MIC37120/MIC37122
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- Griselda Ball
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1 High-Performance, Low-Noise, 1A LDOs General Description The and are high-performance, low-noise, low dropout regulators. Each of these LDOs is capable of sourcing 1A output current, offers high power supply rejection, and low output noise. These general purpose LDOs are most suitable for consumer applications such as multimedia devices, set-top boxes, Blu-ray players, handheld devices, and gaming consoles. The MIC37112 and MIC37122 feature adjustable output voltages while the MIC3711 and MIC3712 come in fixed 1.8V output voltage options. All devices feature 2% initial output voltage accuracy, typical dropout of 23mV at 1A, and low ground current. This family of low-noise regulators is available in 2mm x 2mm Thin MLF, SOIC-8 and SOT-223 packages and they all have an operating junction temperature range of 4 C to +125 C. Data sheets and support documentation can be found on Micrel s web site at: Features Input voltage range: 2.375V to 5.5V Output voltage adjustable down to 1.V (MIC37112/MIC37122) Stable with small, 2.2µF ceramic output capacitor 23mV typical dropout at 1A 1A minimum guaranteed output current ±2.% initial accuracy Low ground current High PSRR: >6dB, up to 1kHz Output auto-discharge circuit () Thermal-shutdown and current-limit protection Applications Mobile phones and consumer multimedia devices Set-top boxes and Blu-ray players Gaming consoles Tablets and handheld devices GPS receivers Typical Application DROPOUT VOLTAGE (mv) Dropout Voltage vs. Output Current VIN = 2.5V VADJ =.95 * 1.V ADJUSTABLE OPTION TA = 25ºC OUTPUT CURRENT (A) MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc. Micrel Inc. 218 Fortune Drive San Jose, CA USA tel +1 (48) fax + 1 (48) December 212 M A
2 Ordering Information Part Number (1,2) Output Voltage Top Mark Output Auto-Discharge Package MIC YS 1.8V ZHG No SOT-223-3L MIC YM 1.8V No SOIC-8L MIC YMT 1.8V GHZ No 2mm 2mm Thin MLF-6L MIC37112YM Adjustable No SOIC-8L MIC37112YMT Adjustable AZZ No 2mm 2mm Thin MLF-6L MIC YM 1.8V Yes SOIC-8L MIC YMT 1.8V 1H8 Yes 2mm 2mm Thin MLF-6L MIC37122YM Adjustable Yes SOIC-8L MIC37122YMT Adjustable ZAZ Yes 2mm 2mm Thin MLF-6L Note: 1. RoHS compliant with high-melting solder exemption. 2. Temperature range is -4 C to +125 C Pin Configuration SOT-223 (S) MIC371x-1.8 (Fixed) 2mm x 2mm Thin MLF - 6 Lead (MT) MIC371xx (Fixed/Adjustable) 8-Pin SOIC (M) MIC371x-1.8 (Fixed) 8-Pin SOIC (M) MIC371x2 (Adjustable) December M A
3 Pin Description Pin Number SOT-223-3L Pin Number SOIC-8 (Fixed) Pin Number SOIC-8 (Adjustable) Pin Number 2mm 2mm Thin MLF-6L Pin Name EN Pin Description IN Supply (Input) OUT Regulator Output. Enable (Input): CMOS-compatible control input. Logic high = enable, logic low = shutdown. ADJ Adjustment Input: Feedback input. Connect to 4 5 resistive voltage-divider network to set the output voltage of the MIC37112/MIC Output Voltage Sense Input. Connect this pin at 5 SNS the point-of-load to monitor the output voltage of the fixed output voltage options. 2, TAB GND Ground. 4 6 NC Not internally connected December M A
4 Absolute Maximum Ratings (1) Supply Voltage (V IN ) V to +6V Enable Voltage (V EN ) V to +V IN Adjust Pin Voltage (V ADJ ) V to +V IN Lead Temperature (soldering, 5s) C Storage Temperature (T s ) C to +15 C ESD Rating (3) HBM... 3kV Operating Ratings (2) Supply Voltage (V IN ) V to +5.5V Enable Voltage (V EN ).... V to V IN Power Dissipation (P D(max) ) Internally Limited (4) Junction Temperature (T J )... 4 C to +125 C Package Thermal Resistance SOT-223 (θ JA )... 4 C/W SOIC-8 (θ JA ) C/W Thin MLF-6 (θ JA )... 1 C/W Electrical Characteristics (5) V IN = V EN = V OUT + 1V; I OUT = 1mA; C IN = 1. µf; C OUT = 2.2µF; T J = 25 C, bold values indicate 4 C T J +125 C, unless noted. Parameter Condition Min. Typ. Max. Units Power Supply Input Input Voltage Range (V IN) V Input Supply UVLO 2.2 V Input Supply UVLO Hysteresis 1 mv Ground Pin Current (6) 1mA I OUT 1.A 25 5 µa Ground Current in Shutdown V EN = V OUT = V.1 5 µa Reference Adjust Pin Voltage Adjustable Option V Output Voltage Accuracy Fixed Option % Load Regulation I OUT = 1mA to 1A % Line Regulation V IN = (V OUT + 1V) to 5.5V.5.5 % ADJ Pin Current V ADJ = 1.V.1 1 µa Current Limit Current Limit V OUT = V A Dropout Voltage Dropout Voltage (V IN V OUT) (7) I OUT = 1A 23 4 mv Load Discharge Resistance () Load Discharge Resistance V EN = V; V IN = 3.6V; I OUT = 3mA 3 Ω Enable Input Enable Logic Level High V Enable Logic Level Low V EN Hysteresis 1 mv EN Pin Current V EN =.2V (Regulator Shutdown).1 1 V IN = V EN = 3.6V (Regulator Enabled).1 1 µa December M A
5 Electrical Characteristics (5) (Continued) V IN = V EN = V OUT + 1V; I OUT = 1mA; C IN = 1. µf; C OUT = 2.2µF; T J = 25 C, bold values indicate 4 C T J +125 C, unless noted. Parameter Condition Min. Typ. Max. Units Enable Input Start-Up Time 14 5 µs Minimum Load Current Minimum Load Current 1 ma Thermal Protection Over-Temperature Shutdown T J Rising 16 C Over-Temperature Shutdown Hysteresis 15 C Notes: 1. Exceeding the absolute maximum rating may damage the device. 2. The device is not guaranteed to function outside its operating rating. 3. Devices are ESD sensitive. Handling precautions recommended. 4. P D(max) = (T J(max) T A) θ JA, where θ JA depends upon the printed circuit layout. See Applications Information section. 5. Specification for packaged product only. 6. I GND is the quiescent current. I IN = I GND + I OUT. 7. V DO = V IN V OUT when V OUT decreases to 98% of its nominal output voltage with V IN = V OUT + 1V. For output voltages below 2.25V, dropout voltage is the input-to-output voltage differential with the minimum input voltage being 2.25V. The minimum input operating voltage is 2.375V. December M A
6 Typical Characteristics Dropout Voltage vs. Input Voltage GND Pin Current vs. Input Voltage Shutdown Ground Current vs. Input Voltage DROPOUT VOLTAGE (mv) ADJUSTABLE OPTION VADJ = V IOUT = 5mA IOUT = 1A GROUND CURRENT (µa) VOUT = VIN - 1.V IOUT = 1A GROUND CURRENT (µa) VOUT = V VEN = V INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) Adjust Pin Voltage vs. Input Voltage Adjust Pin Current vs. Input Voltage Enable Pin Current vs. Input Voltage ADJ PIN VOLTAGE (V) VOUT = 1.V IOUT = 1mA ADJ PIN CURRENT (na) VADJ= 1.V ENABLE PIN CURRENT (µa) VOUT = 1.V IOUT = 1mA VEN = 3.6V INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) Current Limit vs. Input Voltage Load Regulation vs. Input Voltage Load Discharge Resistance vs. Input Voltage CURRENT LIMIT (A) VOUT = V LOAD REGULATION (%) VOUT = VIN - 1.V (ADJUSTABLE OPTION) IOUT = 1mA TO 1A DISCHARGE RESISTANCE (Ω) VEN = V IOUT = 3mA INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) December M A
7 Typical Characteristics (Continued) 5 GND Pin Current vs. Temperature 2. Shutdown Ground Current vs. Temperature 2.5 V IN UVLO Threshold vs. Temperature GROUND CURRENT (µa) V IN = 2.5V V OUT = 1.5V I OUT = 5mA GROUND CURRENT (µa) VIN =2.375V VOUT = V UVLO THRESHOLD (V) TEMPERATURE ( C) TEMPERATURE ( C) TEMPERATURE ( C) DROPOUT VOLTAGE (mv) VIN = 2.375V Dropout Voltage vs. Temperature VADJ =.95 * 1.V ADJUSTABLE OPTION IOUT = 1A IOUT = 5mA DROPOUT VOLTAGE (mv) VIN = 3.3V Dropout Voltage vs. Temperature VADJ =.95 * 1.V ADJUSTABLE OPTION IOUT = 1A IOUT = 5mA CURRENT LIMIT (A) Current Limit vs. Temperature VIN = 2.5V VOUT = V TEMPERATURE ( C) TEMPERATURE ( C) TEMPERATURE ( C) 1.2 VIN = 2.5V Adjust Pin Voltage vs. Temperature 2 VIN = 3.3V Adjust Pin Current vs. Temperature 1. Line Regulation vs. Temperature VIN = 2.5V to 5.5V ADJ PIN VOLTAGE (V) VOUT = 1.5V IOUT = 1mA ADJ PIN CURRENT (na) VADJ = 1.V LINE REGULATION (%) VOUT = 1.5V IOUT = 1mA TEMPERATURE ( C) TEMPERATURE ( C) TEMPERATURE ( C) December M A
8 Typical Characteristics (Continued) 4 Dropout Voltage vs. Output Current 4 Dropout Voltage vs. Output Current 1.1 Adjust Pin Voltage vs. Output Current DROPOUT VOLTAGE (mv) VIN = 2.5V VADJ =.95 * 1.V ADJUSTABLE OPTION DROPOUT VOLTAGE (mv) VIN = 3.3V VADJ =.95 * 1.V ADJUSTABLE OPTION ADJ PIN VOLTAGE (V) VIN = 2.5V VOUT = 1.8V OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) 1. Line Regulation vs. Output Current 4 GND Pin Current vs. Output Current 1 Output Noise vs. Frequency LINE REGULATION (%) VIN = 2.5V to 5.5V VOUT = 1.4V GROUND CURRENT (µa) VIN = 2.5V VOUT = 1.8V OUTPUT NOISE (µv/ Hz) VIN =2.5V VOUT = 1.8V IOUT = 5mA COUT = 1µF Noise Spectral Density OUTPUT CURRENT (A) OUTPUT CURRENT (A) FREQUENCY (khz) PSRR vs. Frequency PSRR vs. Frequency RIPPLE REJECTION (db) V IN =2.8V V OUT = 1.8V V RIPPLE = 8mV I OUT = 1mA C IN = uf C OUT = 1uF Gain (db) RIPPLE REJECTION (db) VIN = 2.8V VOUT = 2.2V VRIPPLE= 8mV IOUT = 1A CIN = 1uF COUT = 1uF Gain (db) FREQUENCY (khz) FREQUENCY (khz) December M A
9 Typical Characteristics (Continued) 1. Power Dissipation vs. Output Current 1. Power Dissipation vs. Output Current 1 Case Temperature* (YM) vs. Output Current POWER DISSIPATION (W) VIN = 3.3V VOUT = 2.5V POWER DISSIPATION (W) VIN = 2.5V VOUT = 1.8V CASE TEMPERATURE ( C) VIN = 3.3V VOUT = 2.5V OUTPUT CURRENT (A) OUTPUT CURRENT (A) OUTPUT CURRENT (A) CASE TEMPERATURE ( C) Case Temperature* (YS) vs. Output Current VIN = 2.5V VOUT = 1.8V OUTPUT CURRENT (A) Case Temperature*: The temperature measurement was taken at the hottest point on the MIC371xx that was case mounted on a 2.25 square inch PCB at an ambient temperature of 25 C; see Thermal Measurement section. Actual results will depend upon the size of the PCB, ambient temperature and proximity to other heat-emitting components. December M A
10 Functional Characteristics December M A
11 Functional Characteristics (Continued) December M A
12 Functional Characteristics (Continued) December M A
13 Functional Diagrams MIC3711 Functional Diagram Fixed Voltage MIC37112 Functional Diagram Adjustable Voltage December M A
14 Application Information The MIC3711/2 and MIC3712/2 are high-performance, low-noise, low-voltage regulators suitable for moderate current consumer applications such as mobile phones, set-top boxes, and gaming consoles. The MIC3711/2 and MIC3712/2 are capable of sourcing 1A output, offer high PSRR and low output noise. With a 4mV dropout voltage at full load and over temperature, these ICs are especially valuable in battery-powered systems and as high-efficiency noise filters in post-regulator applications. The MIC3711/12 and MIC3712/22 regulators are fully protected from damage due to fault conditions. Linear current limiting is provided. Output current during overload conditions is constant. Thermal shutdown disables the device when the die temperature exceeds the maximum safe operating temperature. The output structure of these regulators allows voltages in excess of the desired output voltage to be applied without reverse current flow. Figure 1. Capacitor Requirements Input Capacitor An input capacitor of 1µF or greater is recommended when the device is more than four inches away from the bulk AC supply capacitance or when the supply is a battery. Small, surface mount, ceramic chip capacitors can be used for bypassing. Larger values will help to improve ripple rejection by bypassing the input to the regulator, further improving the integrity of the output voltage. Place the external capacitors for the input/output as close to the IC as possible. See Figure 1. Enable Input The TMLF-6 (Thin MLF) and SOIC-8 package options feature an active-high enable input (EN) that allows for ON/OFF control of the regulator. Current drain reduces to zero when the device is shutdown, with only microamperes of leakage current. The EN input has TTL/CMOS compatible thresholds for simple logic interfacing. EN may be directly tied to V IN. Transient Response and 3.3V to 2.5V or 2.5V to 1.8V, 1.65V or 1.5V Conversion The MIC3711/2 and MIC3712/22 have excellent transient response to variations in input voltage and load current. The device has been designed to respond quickly to load current variations and input voltage variations. Large output capacitors are not required to obtain this performance. A standard 1µF output capacitor (ceramic) is all that is required. Larger values help to improve performance even further. Output Capacitor The MIC3711/2 and MIC3712/2 requires an output capacitor to maintain stability and improve transient response. The MIC3711/2 and MIC3712/2 require a 2.2µF or greater output capacitor to maintain stability. Larger capacitor values may be used but the device is optimized for 2.2µF and optimum performance is achieved with the use of low ESR ceramic capacitors. Ultra-low ESR ceramic capacitors are recommended for output capacitance of 1µF or greater to help improve transient response and noise reduction at high frequency. X7R/X5R dielectric-type ceramic capacitors are recommended because of their temperature performance. X7R-type capacitors change capacitance by 15% over their operating temperature range and are the most stable type of ceramic capacitors. Z5U and Y5V dielectric capacitors change value by as much as 5% and 6% respectively over their operating temperature ranges. To use a ceramic chip capacitor with Y5V dielectric, the value must be much higher than a X7R ceramic capacitor to ensure the same minimum capacitance over the equivalent operating temperature range. December M A
15 Minimum Load Current The MIC37112/22 regulator is specified between finite loads. If the output current is too small, leakage currents dominate and the output voltage rises. A 1mA minimum load current is necessary for proper regulation. Adjustable Regulator Design V OUT R1 R2 1.V 1.1V 1.Ω 1Ω 1.2V 2.Ω 1Ω 1.5V 49.9Ω 1Ω 1.8V 8.6Ω 1Ω 2.2V 121Ω 1Ω 2.5V 15Ω 1Ω 3.V 2Ω 1Ω 3.3V 232Ω 1Ω 3.6V 261Ω 1Ω Table 1. Resistor Selection for Specific V OUT Figure 2. Adjustable Regulator with Resistors The MIC37112 and MIC37122 allow programming the output voltage anywhere between 1.V and 5.V by placing a resistor divider network from OUT to GND and is determined by the following equation: R1 V = V + 1 OUT ADJ R2 where: V OUT is the desired output voltage and V ADJ = 1.V. Two resistors are used. Resistors can be quite large, but the resistor (R1) value between the OUT pin and the ADJ pin should not exceed 1kΩ. Larger values can cause instability. The resistor values are calculated from the previous equation, resulting in the following: R1 = R2 ( V 1) OUT Figure 2 shows component definition. Applications with widely varying load currents may scale the resistors to draw the minimum load current required for proper operation. See Table 1 for a list of resistor combinations to set the output voltage. A 1% tolerance is recommended for both R1 and R2. Thermal Measurements It is always wise the measure the IC s case temperature to make sure that it is within its operating limits. Although this might seem like a very elementary task, it is very easy to get to get erroneous results. The most common mistake is to use the standard thermal couple that comes with the thermal voltage meter. This thermal couple wire gauge is large, typically 22 gauge, and behaves like a heatsink, resulting in a lower case measurement. There are two suggested methods for measuring the IC case temperature: a thermal couple or an infrared thermometer. If a thermal couple is used, it must be constructed of 36 gauge wire or higher to minimize the wire heatsinking effect. In addition, the thermal couple tip must be covered in either thermal grease or thermal glue to make sure that the thermal couple junction is making good contact to the case of the IC. This thermal couple from Omega (5SC-TT-K-36-36) is adequate for most applications. To avoid this messy thermal couple grease or glue, an infrared thermometer is recommended. Most infrared thermometers spot size is too large for an accurate reading on small form factor ICs. However, an IR thermometer from Optris has a 1mm spot size, which makes it ideal for the MIC371xx 2mm x 2mm Thin MLF package. Also, get the optional stand. The stand makes it easy to hold the beam on the IC for long periods of time. Power SOIC-8 Thermal Characteristics One of the secrets of the MIC3711/3712 s performance is its power SO-8 package featuring half the thermal resistance of a standard SO-8 package. Lower thermal resistance means more output current or higher input voltage for a given package size. December M A
16 Lower thermal resistance is achieved by joining the four ground leads with the die attach paddle to create a single-piece electrical and thermal conductor. This concept has been used by MOSFET manufacturers for years, proving very reliable and cost effective for the user. Low-dropout linear regulators from Micrel are rated to a maximum junction temperature of 125 C. It is important not to exceed this maximum junction temperature during operation of the device. To prevent this maximum junction temperature from being exceeded, the appropriate ground plane heat sink must be used. Thermal resistance consists of two main elements, θ JC (junction-to-case thermal resistance) and θ CA (case-toambient thermal resistance). See Figure 3. θ JC is the resistance from the die to the leads of the package. θ CA is the resistance from the leads to the ambient air and it includes θ CS (case-to-sink thermal resistance) and θ SA (sink-to-ambient thermal resistance). Figure 4. Copper Area vs. Power SO-8 Power Dissipation Figure 3. Thermal Resistance Figure 4 shows copper area versus power dissipation with each trace corresponding to a different temperature rise above ambient. From these curves, the minimum area of copper necessary for the part to operate safely can be determined. The maximum allowable temperature rise must be calculated to determine operation along which curve: Using the power SOIC-8 reduces the θ JC dramatically and allows the user to reduce θ CA. The total thermal resistance, θ JA (junction-to-ambient thermal resistance) is the limiting factor in calculating the maximum power dissipation capability of the device. Typically, the power SOIC-8 has a θ JC of 2 C/W, this is significantly lower than the standard SOIC-8 which is typically 75 C/W. θ CA is reduced because pins 5 through 8 can now be soldered directly to a ground plane which significantly reduces the case-to-sink thermal resistance and sinks to ambient thermal resistance. ΔT = T J(max) T A(max) T J(max) = 125 C T A(max) = maximum ambient operating temperature. For example, the maximum ambient temperature is 5 C, the ΔT is determined as follows: ΔT = 125 C 5 C ΔT = 75 C Using Figure 4, the minimum amount of required copper can be determined based on the required power dissipation. Power dissipation in a linear regulator is calculated as follows: P D = (V IN V OUT ) I OUT + V IN I GND December M A
17 If we use a 2.5V output device and a 3.3V input at an output current of 1A, then our power dissipation is as follows: The θ JA of this package is ideally 63 C/W, but it will vary depending upon the availability of copper ground plane to which it is attached. P D = (3.3V 2.5V) 1A + 3.3V 11mA P D = 8mW + 36mW P D = 836mW From Figure 4, the minimum amount of copper required to operate this application at a ΔT of 75 C is 16mm 2. Quick Method Determine the power dissipation requirements for the design along with the maximum ambient temperature at which the device will be operated. Refer to Figure 5, which shows safe operating curves for three different ambient temperatures: 25 C, 5 C and 85 C. From these curves, the minimum amount of copper can be determined by knowing the maximum power dissipation required. If the maximum ambient temperature is 5 C and the power dissipation is as above, 836mW, the curve in Figure 5 shows that the required area of copper is 16mm 2. Figure 5. Copper Area vs. Power-SOIC Power Dissipation December M A
18 Package Information SOT-223 (S) December M A
19 Package Information (Continued) 6-Pin 2mm 2mm Thin MLF (MT) December M A
20 Package Information (Continued) 8-Pin SOIC (M) MICREL, INC. 218 FORTUNE DRIVE SAN JOSE, CA USA TEL +1 (48) FAX +1 (48) WEB Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license, whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel s terms and conditions of sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. 212 Micrel, Incorporated. December M A
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µcap Negative Low-Dropout Regulator General Description The is a µcap 100mA negativee regulator in a SOT-23-this regulator provides a very accurate supply voltage for applications that require a negative
MIC5387. Features. General Description. Applications. Typical Application. Ultra-Small Triple 150mA Output LDO
Ultra-Small Triple Output LDO General Description The is an advanced, general-purpose, triple linear regulator offering high power supply rejection (PSRR) in an ultra-small, 6-pin, 1.6mm x 1.6mm Thin MLF
MIC5316. General Description. Features. Applications. Typical Application. Low Voltage Dual 300mA LDO with Power on Reset and Voltage Select
Low Voltage Dual 300mA LDO with Power on Reset and Voltage Select General Description The is a high performance, dual low input voltage, low dropout regulator with Power On Reset (POR) and voltage select.
Features. 100k MIC39101 IN OUT GND. 2.5V/1A Regulator with Error Flag
MIC391/3911/3912 MIC391/3911/3912 1A Low-Voltage Low-Dropout Regulator General Description The MIC391, MIC3911, and MIC3912 are 1A low-dropout linear voltage regulators that provide low-voltage, high-current
MIC Features. General Description. Applications. Typical Application. 1.5A, Low-Voltage µcap LDO Regulator
1.5A, Low-Voltage µcap LDO Regulator General Description The Micrel is a 1.5A low-dropout linear voltage regulator that provides a low-voltage, high-current output with a minimum of external components.
Features. Applications V IN C IN
3.A, Low-Voltage µcap LDO Regulator General Description The Micrel is a 3.A low-dropout linear voltage regulator that provides a low-voltage, high-current output with a minimum number of external components.
Features. Applications. RF Power Supply Circuit
High Performance, Low Noise Dual 500mA ULDO General Description The is a tiny Dual Ultra Low Dropout (ULDO ) linear regulator ideally suited for portable electronics due to its low output noise. The provides
Features. Applications
Low Input Voltage, Single-Supply High-Current LDO General Description The Micrel is a 3A output, low input voltage, single-supply regulator. This regulator operates over a single input voltage range of
Features. Applications
High Input Voltage Low IQ µcap LDO Regulator General Description The is a 100mA highly accurate, low dropout regulator with high input voltage and ultra-low ground current. This combination of high voltage
MIC5331. General Description. Features. Applications. Typical Application. Micro-Power High Performance Dual 300mA ULDO
Micro-Power High Performance Dual 300mA ULDO General Description The is a tiny dual low quiescent current LDO ideal for applications that are power sensitive. The integrates two high performance, 300mA
Features. Applications. Portable Application
500mA LDO in 1.6mm 1.6mm Package General Description The is a high-performance, single-output, ultralow LDO (ULDO ) regulator, offering a low total output noise of 30μV RMS. The is capable of sourcing
MIC5333. General Description. Features. Applications. Typical Application. Micro-Power High Performance Dual 300mA ULDO with Dual POR
Micro-Power High Performance Dual 300mA ULDO with Dual POR General Description The is a tiny dual low quiescent current LDO ideal for applications that are power sensitive. The integrates two high performance,
MIC2033. General Description. Features. Applications. Typical Application. High-Accuracy, High-Side, Fixed Current Limit Power Switch
High-Accuracy, High-Side, Fixed Current Limit Power Switch General Description The is a high-side MOSFET power distribution switch providing increased system reliability utilizing 5% current limit accuracy.
MIC37100/37101/ General Description. Features. Applications. Typical Applications. 1A Low-Voltage µcap LDO Regulator
MIC37/37/37 MIC37/37/37 A Low-Voltage µcap LDO Regulator General Description The MIC37, MIC37, and MIC37 are A low-dropout, linear voltage regulators that provide low-voltage, high-current output from
Features. Applications. V OUT
MIC535 5mA µcap Ultra-Low Dropout LDO Regulator General Description The MIC535 is a high-performance, 5mA LDO regulator, offering extremely high PSRR and very low noise while consuming low ground current.
Features. Applications
MIC9431 2mA LDO with Ripple Blocker Technology General Description The MIC9431 Ripple Blocker is a monolithic integrated circuit that provides low-frequency ripple attenuation (switching noise rejection)
Features. Applications V IN ENABLE SHUTDOWN. C IN = 1.0µF
300mA High PSRR, Low Noise µcap CMOS LDO General Description The is an efficient CMOS voltage regulator optimized for low-noise applications. It offers 1.5% initial accuracy, low dropout voltage (300mV
MIC5225. General Description. Features. Applications. Typical Application. Ultra-Low Quiescent Current 150mA µcap Low Dropout Regulator
Ultra-Low Quiescent Current 15mA µcap Low Dropout Regulator General Description The is a 15mA highly accurate, low dropout regulator with high input voltage and ultra-low ground current. This combination
MIC5380/1. General Description. Features. Applications. Typical Application. High Performance Dual 150mA LDO 1mm x 1mm Thin MLF
High Performance Dual 15mA LDO 1mm x 1mm Thin MLF General Description The is an advanced dual LDO ideal for powering space constrained portable devices. The provides two independently controlled, high
MIC5248. Features. General Description. Applications. Typical Application. 150mA µcap CMOS LDO Regulator w/power Good VIN VOUT C OUT GND
150mA µcap CMOS LDO Regulator w/power Good General Description The is an efficient, general purpose 1.2V CMOS voltage regulator with a power good output function. The offers better than 3%initial accuracy,
MIC2215. Features. General Description. Applications. Typical Application. Triple High PSRR, Low Noise µcap LDO
Triple High PSRR, Low Noise µcap LDO General Description The is a high performance, triple LDO voltage regulator, with each regulator capable of providing 250mA continuous output current. Ideal for battery
MIC29510/ General Description. Features. Applications. Typical Application. 5A Fast-Response LDO Regulator
5A Fast-Response LDO Regulator General Description The MIC29510 and MIC29512 are high-current, highaccuracy, low-dropout voltage regulators featuring fast transient recovery from input voltage surges and
MIC5238. General Description. Features. Applications. Typical Application. Ultra-Low Quiescent Current, 150mA µcap LDO Regulator
Ultra-Low Quiescent Current, 150mA µcap LDO Regulator General Description The is an ultra-low voltage output, 150mA LDO regulator. Designed to operate in a single supply or dual supply mode, the consumes
Features. Applications. Figure 1. Typical Application Circuit
3A, Low Voltage, Adjustable LDO Regulator with Dual Input Supply General Description The is a high-bandwidth, low-dropout, 3A voltage regulator ideal for powering core voltages of lowpower microprocessors.
Features. RF Power Supply Circuit
Dual 300mA µcap LDO in 2mm x 2mm MLF General Description The is a tiny Dual Ultra Low Dropout (ULDO ) linear regulator ideally suited for portable electronics due to its high power supply ripple rejection
MIC94161/2/3/4/5. Features. General Description. Applications. Typical Application. 3A High-Side Load Switch with Reverse Blocking
3A High-Side Load Switch with Reverse Blocking General Description The is a family of high-side load switches designed to operate from 1.7V to 5.5V input voltage. The load switch pass element is an internal
Features. Applications. Camera DSP Power Supply Circuit
High-Performance Dual 150mA LDO General Description The is a tiny dual low-dropout linear regulator ideally suited for portable electronics. It is ideal for general purpose/digital applications which require
MIC5374/84. Features. General Description. Applications. Typical Application. Triple 200mA µcap LDO and 1mA RTC LDO in 2.5mm x 2.
Triple 2mA µcap LDO and 1mA RTC LDO in 2.5mm x 2.5mm Thin MLF General Description The is a four output device with three 2mA LDOs and a real time clock (RTC) 1mA LDO which is ideal for application processor
MIC5373/83. Features. General Description. Applications. Typical Application. Triple 200mA µcap LDO in 2.5mm x 2.5mm Thin MLF
Triple 2mA µcap LDO in 2.5mm x 2.5mm Thin MLF General Description The is a triple output device with three 2mA LDOs which is ideal for application processor support in mobile platforms. The MIC5373 provides
MIC5235. General Description. Features. Applications. Typical Application. Ultra-Low Quiescent Current, 150mA µcap LDO Regulator
MIC535 Ultra-Low Quiescent Current, 5mA µcap LDO Regulator General Description The MIC535 is a 5mA highly accurate, low dropout regulator with high input voltage and ultra-low ground current. This combination
MIC Features. General Description. Applications. Ordering Information. 3A Fast-Response LDO Regulator for USB
3A Fast-Response LDO Regulator for USB General Description The is a 3A, fast response, low-dropout (LDO) voltage regulator. Using Micrel s proprietary Super βeta PNP process, the offers exceptional dropout
Features. MIC5253-x.xBC5 V IN. Ultra-Low-Noise Regulator Application
1mA Low Noise µcap Teeny LDO General Description The is an efficient, CMOS voltage regulator optimized for ultra-low-noise applications. It offers 1.5% initial accuracy, extremely low dropout voltage (165mV
MIC5310. General Description. Features. Applications. Typical Application. Dual 150mA µcap LDO in 2mm x 2mm MLF
Dual 15mA µcap LDO in 2mm x 2mm MLF General Description The is a tiny Dual Ultra Low Dropout (ULDO ) linear regulator ideally suited for portable electronics due to its high power supply ripple rejection
Features. Applications
MIC9431 2mA LDO with Ripple Blocker Technology General Description The MIC9431 Ripple Blocker is a monolithic integrated circuit that provides low-frequency ripple attenuation (switching noise rejection)
RT9187C. 600mA, Ultra-Low Dropout, CMOS Regulator. General Description. Features. Applications. Ordering Information. Pin Configurations (TOP VIEW)
600mA, Ultra-Low Dropout, CMOS Regulator General Description The is a high-performance, 600mA LDO regulator, offering extremely high PSRR and ultra-low dropout. This chip is ideal for portable RF and wireless
Features. Applications SOT-23-5
135MHz, Low-Power SOT-23-5 Op Amp General Description The is a high-speed, unity-gain stable operational amplifier. It provides a gain-bandwidth product of 135MHz with a very low, 2.4mA supply current,
Features MIC5236 GND. Regulator with Adjustable Output
MIC56 Low Quiescent Current µcap LDO Regulator General Description The MIC56 is a low quiescent current, µcap low-dropout regulator. With a maximum operating input voltage of V and a quiescent current
MIC94090/1/2/3/4/5. Features. General Description. Applications. Typical Application. High Side Load Switches for Consumer Applications
High Side Load Switches for Consumer Applications General Description The is a family of high-side load switches designed for operation from 1.7V to 5.5V input voltage. The load switch pass element is
MIC General Description. Features. Applications. Dual 2A LDO Regulator
Dual 2A LDO Regulator General Description The is a dual high peak current LDO regulator designed specifically for powering applications such as FPGA core voltages that require high start up current with
RT9187B. 600mA, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information RT9187B
6mA, Ultra-Low Dropout, Ultra-Fast CMOS LDO Regulator General Description The is a high-performance, 6mA LDO regulator, offering extremely high PSRR and ultra-low dropout. This chip is ideal for portable
RT9041A/B. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information
RT9041A/B 500mA, Low Voltage, LDO Regulator with External Bias Supply General Description The RT9041A/B are low voltage, low dropout linear regulators with an external bias supply input. The bias supply
RT mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information. Marking Information
3mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator General Description The RT9193 is designed for portable RF and wireless applications with demanding performance and space requirements. The RT9193 performance
RT A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable. Features. General Description. Applications. Ordering Information
RT2516 2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable General Description The RT2516 is a high performance positive voltage regulator designed for use in applications requiring ultra-low
Features. MIC2212-xxBML VOUT2 POR CBYP SET GND. MIC2212 Typical Cell Phone Application
MIC2212 Dual µcap LDO and Power-On Reset General Description The MIC2212 is a dual µcap low dropout regulator with power-on reset circuit. The first regulator is capable of sourcing 15mA, while the second
MIC5216. General Description. Features. Applications. Typical Application. 500mA-Peak Output LDO Regulator
500mA-Peak Output LDO Regulator General Description The is an efficient linear voltage regulator with high peak output current capability, very low dropout voltage, and better than 1% output voltage accuracy.
Features MIC ERROR FLAG OUTPUT V IN 3.3V IN V OUT 2.5V 3.3V OUT GND
MIC395/3951 5A µcap Low-Voltage Low-Dropout Regulator General Description The MIC395 and MIC3951 are 5A low-dropout linear voltage regulators that provide a low-voltage, high-current output with a minimum
Features. Applications. RF Transceiver
15mA µcap Dual LDO Regulator General Description The is a dual 15mA LDO in tiny 2.5mm x 2.5mm MLF packaging ideal for applications where cost is the priority. The is ideal for any application in portable
RT2517B. 1A, 6V, Ultra-Low Dropout Linear Regulator. General Description. Features. Applications. Ordering Information. Marking Information
RT2517B 1A, 6V, Ultra-Low Dropout Linear Regulator General Description The RT2517B is a high performance positive voltage regulator designed for use in applications requiring ultralow input voltage and
RT9041F. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information
500mA, Low Voltage, LDO Regulator with External Bias Supply General Description The is a low voltage, low dropout linear regulator with an external bias supply input. The bias supply drives the gate of
Features ENABLE SHUTDOWN. Ultra-Low-Noise Regulator Application
5mA Low Noise µcap CMOS LDO General Description The is an efficient, precise CMOS voltage regulator optimized for ultra-low-noise applications. It offers % initial accuracy, extremely-low dropout voltage
RT9041E. 500mA, Low Voltage, LDO Regulator with External Bias Supply. General Description. Features. Applications. Ordering Information RT9041E-
RT9041E 500mA, Low Voltage, LDO Regulator with External Bias Supply General Description The RT9041E is a low voltage, low dropout linear regulator with an external bias supply input. The bias supply drives
RT mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator. General Description. Features. Applications. Ordering Information. Marking Information
3mA, Ultra-Low Noise, Ultra-Fast CMOS LDO Regulator General Description The is designed for portable RF and wireless applications with demanding performance and space requirements. The performance is optimized
RT2515A. 2A, Low Input Voltage, Ultra-Low Dropout Linear Regulator with Enable. General Description. Features. Applications
2A, Low Input Voltage, Ultra-Low Dropout Linear Regulator with Enable General Description The is a high performance positive voltage regulator designed for use in applications requiring ultralow input
Low Noise 300mA LDO Regulator General Description. Features
Low Noise 300mA LDO Regulator General Description The id9301 is a 300mA with fixed output voltage options ranging from 1.5V, low dropout and low noise linear regulator with high ripple rejection ratio
Features. Applications
Teeny Ultra-Low Power Op Amp General Description The is a rail-to-rail output, operational amplifier in Teeny SC70 packaging. The provides 4MHz gain-bandwidth product while consuming an incredibly low
MIC General Description. Features. Applications. Typical Application. HELDO 1.5A High Efficiency Low Dropout Regulator
HELDO 1.5A High Efficiency Low Dropout Regulator General Description The is a 1.5A continuous output current step down converter. This is a follow on product in the new HELDO (High Efficiency Low DropOut
1A Ultra Low Dropout Voltage Regulator with Multi-Functions
1A Ultra Low Dropout Voltage Regulator with Multi-Functions DESCRIPTION The TS39104 are 1A ultra low dropout linear voltage regulators that provide low voltage, high current output from an extremely small
RT2517B. 1A, 6V, Ultra-Low Dropout Linear Regulator. Features. General Description. Applications. Ordering Information. Marking Information
Sample & Buy 1A, 6V, Ultra-Low Dropout Linear Regulator General Description The is a high performance positive voltage regulator designed for use in applications requiring ultralow input voltage and ultra-low
MIC4414/4415. General Description. Features. Applications. Typical Application. 1.5A, 4.5V to 18V, Low-Side MOSFET Driver
MIC4414/4415 1.5A, 4.5V to 18V, Low-Side MOSFET Driver General Description The MIC4414 and MIC4415 are low-side MOSFET drivers designed to switch an N-channel enhancement type MOSFET in low-side switch
id id mA, Low Dropout, Low Noise Ultra-Fast With Soft Start CMOS LDO Regulator Features General Description Applications
500mA, Low Dropout, Low Noise Ultra-Fast With Soft Start CMOS LDO Regulator General Description The is a 500mA, low dropout and low noise linear regulator with high ripple rejection ratio. It has fixed
id9309 Ultra-Low Noise Ultra-Fast 300mA LDO Regulator Features
Ultra-Low Noise Ultra-Fast 300mA LDO Regulator General Description The id9309 is a 300mA, low dropout and low noise linear regulator with high ripple rejection ratio and fast turn-on time. It has fixed
MIC4812. Features. General Description. Applications. Typical Application
High Current 6 Channel Linear WLED Driver with DAM and Ultra Fast PWM Control General Description The is a high efficiency linear White LED (WLED) driver designed to drive up to six high current WLEDs
RT2517A. 1A, 6V, Ultra Low Dropout Linear Regulator. General Description. Features. Applications. Ordering Information. Marking Information
RT2517A 1A, 6V, Ultra Low Dropout Linear Regulator General Description The RT2517A is a high performance positive voltage regulator designed for applications requiring low input voltage and ultra low dropout
RT mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator. General Description.
RT9030 150mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator General Description The RT9030 is a high-performance, 150mA LDO regulator, offering extremely
MIC29150/29300/29500/29750 Series
MIC29/293/29/297 www.tvsat.com.pl Micrel MIC29/293/29/297 Series High-Current Low-Dropout Regulators General Description The MIC29/293/29/297 are high current, high accuracy, low-dropout voltage regulators.
Features. Applications. Battery-Powered Regulator Application
180mA Low-Noise LDO Regulator General Description The is an efficient linear voltage regulator with ultra-low-noise output, very low dropout voltage (typically 17 at light loads and 165 at 150mA), and
RT μA I Q, 250mA Low-Dropout Linear Regulator. General Description. Features
RT9073 1μA I Q, 250mA Low-Dropout Linear Regulator General Description The RT9073 is a low-dropout (LDO) voltage regulators with enable function that operates from 1.2V to 5.5V. It provides up to 250mA
Features. Applications SOT-23-5 (M5)
1.8V to 11V, 15µA, 25kHz GBW, Rail-to-Rail Input and Output Operational Amplifier General Description The is a low-power operational amplifier with railto-rail inputs and outputs. The device operates from
RTQ2516-QT. 2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable. General Description. Features. Applications. Ordering Information
RTQ2516-QT 2A, Low Input Voltage, Ultra-Low Dropout LDO Regulator with Enable General Description The RTQ2516 is a high performance positive voltage regulator designed for use in applications requiring
RT mA Dual LDO Regulator. General Description. Features. Applications. Ordering Information. Pin Configurations (TOP VIEW) Marking Information
RT9055 300mA Dual LDO Regulator General Description The RT9055 is a dual channel, low noise, and low dropout regulator sourcing up to 300mA at each channel. The output voltage range is from 0.9V to 3.5V
RT mA, Low Input Voltage, Low Dropout, Low Noise Ultra- Fast Without Bypass Capacitor CMOS LDO Regulator. General Description.
Applications CDMA/GSM Cellular Handsets Portable Information Appliances Laptop, Palmtops, Notebook Computers Hand-Held Instruments Mini PCI & PCI-Express Cards PCMCIA & New Cards RT9030 150mA, Low Input