ELM92xxxx CMOS 600kHz High output current PWM step-up DC/DC converter
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- Phoebe Gilmore
- 5 years ago
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1 General description ELM92xxxx is CMOS PWM step-up DC/DC converter which consists of reference voltage source, error amplifier, oscillation circuit, start-up circuit, output voltage setting resistor, LX transistor and switching current limiter. For external parts, coil, diode and capacitor are possible choices; with external parts, ELM92 series is able to acquire constant output voltage higher than input voltage. The standard output voltages are 2.7V,.V,.V, and 5.V; ELM92 series can also be designed as semi-custom IC within the range of 2.5V to 5.5V by.1v step. Meanwhile, 6kHz high frequency PWM control scheme makes it easy to design DC/DC converter which can generate large output current with high stability and small ripples by only using small external inductor. With newly developed intermittent operation control scheme, ELM92 series is able to work with high efficiency under wide range of load conditions. Features Output voltage range : 2.5V to 5.5V (by.1v) Low voltage operation : Vin.9V Oscillating frequency : Typ.6kHz Output current(e.g.) : 25mA(Vin=1.5V, Vout=.V) CE(Chip-enable pin) available : Max..5μA(ELM92xx2x Iss at shutdown) High efficiency : Typ.85% Switching current limiter Package : SOT-89, SOT-89-5 Application Constant voltage source for battery-operated devices Constant voltage source for PDAs, cameras, portable communications equipments and videos Local regulator Maximum absolute ratings Parameter Symbol Limit Unit Apply voltage to LX pin Vlx Vss-. to 8. V Apply voltage to VOUT pin Vout Vss-. to 8. V Apply voltage to CE pin Vce Vss-. to 8. V Power dissipation Pd 5 (SOT-89) 5 (SOT-89-5) mw Operating temperature Top -4 to +85 C Storage temperature Tstg -55 to +125 C Selection guide ELM92xxxx-x Symbol a, b Output voltage e.g. : 27: Vout=2.7V : Vout=.V : Vout=.V 5: Vout=5.V c CE selection 1: No CE type (SOT-89) 2: CE type (SOT-89-5) d Package B: SOT-89, SOT-89-5 e Taping direction S: Refer to PKG file N: Refer to PKG file ELM92 x x x x - x a b c d e 14-1
2 Pin configuration SOT-89(TOP VIEW) SOT-89-5(TOP VIEW) Pin No. Pin name 1 VOUT 2 VSS LX Pin No. Pin name 1 VOUT 2 VSS LX 4 NC CE 5 ("H"=active, "L"=shutdown) Standard circuit ELM92xx1x MA75 ELM92xx2x MA H LX VOUT Vin Vout + ELM92xx1x Cin VSS Cout 47 F 47 F + Vin H LX Vce CE ELM92xx2x VOUT Vout Cin VSS Cout 47 F 47 F + Block diagram VOUT Error Amp PWM / Intermittent mode Controler PWM Comparator LX transistor driver LX CE VSS CE Controler Vref Ramp Wave Generator Phase Compensation Current Limiter 14-2
3 Electrical characteristics (ELM92xx1x) Vout=2.7V(ELM92271x) L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=1.5V Output voltage2 Vout2 Iout=.1mA, Vin=1.5V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V 7 11 μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 * Vout: input voltage to VOUT pin * Vout(T): typical value of Vout1 * Remarks: test circuit No Vout=.V(ELM921x) L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=1.5V Output voltage2 Vout2 Iout=.1mA, Vin=1.5V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 * Vout: input voltage to VOUT pin * Vout(T): typical value of Vout1 * Remarks: test circuit No 14 -
4 Vout=.V(ELM921x) L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=1.5V Output voltage2 Vout2 Iout=.1mA, Vin=1.5V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V 8 1 μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 * Vout: input voltage to VOUT pin * Vout(T): typical value of Vout1 * Remarks: test circuit No Vout=5.V(ELM9251x) L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=V Output voltage2 Vout2 Iout=.1mA, Vin=V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 * Vout: input voltage to VOUT pin * Vout(T): typical value of Vout1 * Remarks: test circuit No 14-4
5 Electrical characteristics (ELM92xx2x) Vout=2.7V(ELM92272x) Vce=Vout, L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=1.5V Output voltage2 Vout2 Iout=.1mA, Vin=1.5V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V 7 11 μa 2 Current consumption in Shutdown Isd Vout=Vout(T).95, Vce=.5 μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % Intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 CE Input voltage "H" Vceh.8 V 6 CE Input voltage "L" Vcel.25 V 6 CE Input current "H" Iceh Vout=Vout(T).95, Vce=Vout(T).95.1 μa 6 CE Input current "L" Icel Vout=Vout(T).95, Vce= -.1 μa 6 * 1.Vout: input voltage to VOUT pin. 2.Vout(T): typical value of Vout1..Vce: input voltage to CE pin. 4.Remarks: test circuit No Vout=.V(ELM922x) Vce=Vout, L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=1.5V Output voltage2 Vout2 Iout=.1mA, Vin=1.5V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V μa 2 Current consumption in Shutdown Isd Vout=Vout(T).95, Vce=.5 μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % Intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 CE Input voltage "H" Vceh.8 V 6 CE Input voltage "L" Vcel.25 V 6 CE Input current "H" Iceh Vout=Vout(T).95, Vce=Vout(T).95.1 μa 6 CE Input current "L" Icel Vout=Vout(T).95, Vce= -.1 μa 6 * 1.Vout: input voltage to VOUT pin. 2.Vout(T): typical value of Vout1..Vce: input voltage to CE pin. 4.Remarks: test circuit No 14-5
6 Vout=.V(ELM922x) Vce=Vout, L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=1.5V Output voltage2 Vout2 Iout=.1mA, Vin=1.5V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V 8 1 μa 2 Current consumption in Shutdown Isd Vout=Vout(T).95, Vce=.5 μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % Intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 CE Input voltage "H" Vceh.8 V 6 CE Input voltage "L" Vcel.25 V 6 CE Input current "H" Iceh Vout=Vout(T).95, Vce=Vout(T).95.1 μa 6 CE Input current "L" Icel Vout=Vout(T).95, Vce= -.1 μa 6 * 1.Vout: input voltage to VOUT pin. 2.Vout(T): typical value of Vout1..Vce: input voltage to CE pin. 4.Remarks: test circuit No Vout=5.V(ELM9252x) Vce=Vout, L=2.2μH, Cout=47μF, D=MA75, Vss=V, Top=25 C Starting voltage Vst No-load.9 Output voltage1 Vout1 Iout=6mA, Vin=V Output voltage2 Vout2 Iout=.1mA, Vin=V Current consumption1 Iss1 Vout=Vout(T) μa 2 Current consumption2 Iss2 Vout=Vout(T)+.5V μa 2 Current consumption in Shutdown Isd Vout=Vout(T).95, Vce=.5 μa 2 Oscillating frequency Fosc Vout=Vout(T) khz Duty ratio Duty Vout=Vout(T) % Intermittent control Fimt khz On-resistance of LX switch Ron Vout=Vout(T) mω 4 Leakage current of LX switch Ilxl Vout=Vlx=7 μa 5 CE Input voltage "H" Vceh.8 V 6 CE Input voltage "L" Vcel.25 V 6 CE Input current "H" Iceh Vout=Vout(T).95, Vce=Vout(T).95.1 μa 6 CE Input current "L" Icel Vout=Vout(T).95, Vce= -.1 μa 6 * 1.Vout: input voltage to VOUT pin. 2.Vout(T): typical value of Vout1..Vce: input voltage to CE pin. 4.Remarks: test circuit No 14-6
7 Test circuits 1. Vout1, Vout2, Vst 2. Iss1, Iss2, Isd. Fosc, Duty, Fimt (LX pin) * Fosc, Duty : Vin=Vout(T).95 * Fimt : Vin=Vout1(1.5 to 1.2) 4. RON * Vlx=V, R=Ω * Ron= R Von Ω Vlx-Von 5. Ilxl 6. Vceh, Vcel, Iceh, Icel Remarks) CE pin : ELM92xx2x series 14-7
8 External parts To design DC/DC converters using ELM92 series, coil, diode, and capacitor are necessary. (Refer to the standard circuit configuration.) 1) Coil When choosing choke coil, please select that whose core is not magnetically saturated, DC resistance is low, and which has sufficient margin for rated current. ELM recommends to use inductance around 2.2μH. It is possible that output voltage ripple form may reach over 1mV when using high industance. If ripple can be ingored, it is possible to acquire high efficiency with high industance. The examples using 4.7μH are shown as follows. ELM92xx ELM925xx EFFICIENCY (%) EFFICIENCY - Iout V 8 1.8V 7 Vin=.9V 1.5V EFFICIENCY (%) EFFICIENCY - Iout 1 9.6V 8.V 7 Vin=1.8V 2.4V ) Diode When choosing diode, please select that whose forward voltage is small, switching speed is high and which has sufficient margin for rated current. ELM recommends diode which is around 1A class. ) Capacitor * CR4/CD4/CR54/CD54 : Sumida Electric Co., Ltd are recommended. * Cout When choosing capacitor, please select that which is generally used for smoothing power supply circuit, with comparatively large capacity and whose rated voltage is at least three times larger than rated output voltage of used ELM92 series. ELM recommends capacitor which is 47μF to 22μF. When Vin is high (Vin>Vout.7), it is possible that large ripple of Iout may happen because of intermittent operation; ELM recommends to use larger capacitor under such circumstance. * Cin Using Cin in the circuit can lower feedback noise to Input; this method is also effective in improving efficiency because input voltage drop during switching can be eased. To gain this effect, please connect tantalum capacitor of 47μF to 22μF to coil as close as possible. 14-8
9 4) Remedies for noise This DC/DC converter may cause electromagnetic noise due to switching of coil under large current. Solution is necessary especially when the IC is used in wireless devices. To reduce noise, this IC is designed in consideration of coil switching characteristics. The following methods are also effective to reduce noise. Use shield-type, or magnetic shield coil. Locate coil and diode to the LX terminal of IC as close as possible. Select ground wire as thick and short as possible. Connect ground wire of circuit to one point. Marking SOT-89 SOT-89 package : ELM92xx1B SOT-89-5 package : ELM92xx2B(with CE) a : Assembly lot No. B to Z (I, O, X excepted) b : Assembly lot No. A to Z (I, O, X excepted) SOP-89-5 c : the integer digit of the output voltage Mark Vout Mark Vout 2 2.*V 4 4.*V.*V 5 5.*V d : the decimal digit of the output voltage Mark Vout Mark Vout *.V 5 *.5V 1 *.1V 6 *.6V 2 *.2V 7 *.7V *.V 8 *.8V 4 *.4V 9 *.9V 14-9
10 Typical characteristics Vout=2.7V(ELM9227xx) (L=2.2μH, Cout=47μF, D=MA75, Top=25 C) Vout - Vin Vout - Iout Iout=15mA 6mA 1mA Vin=.9V 1.5.8V Vin (V) EFFICIENCY (%) EFFICIENCY - Iout Vin=.9V 1.8V 1.5V Vout1(V) Vout1 - Top Vin=1.5V, Iout=6mA Top( C) 2 Vst - Iout Load-Transient Response 2 s /div 1.5 Vst (V) C +25 C +7 C Vout, 5mV/div Iout 1mA A 14-1
11 Vout=.V(ELM92xx) (L=2.2μH, Cout=47μF, D=MA75, Top=25 C).5 Vout - Vin. Vout - Iout Iout=15mA 6mA 1mA Vin=.9V 1.5.8V 2.4V Vin (V) Iout(mA) EFFICIENCY (%) EFFICIENCY - Iout Vin=.9V 2.4V 1.8V 1.5V Vout1(V) Vout1 - Top Vin=1.5V, Iout=6mA Top( C) 2 Vst - Iout Load-Transient Response 2 s /div 1.5 Vst (V) C +25 C +7 C Vout, 5mV/div Iout 1mA A 14-11
12 Vout=.V(ELM92xx) (L=2.2μH, Cout=47μF, D=MA75, Top=25 C) 4 Vout - Vin.6 Vout - Iout Iout=15mA 6mA 1mA Vin=.9V 1.5.8V 2.4V Vin (V) EFFICIENCY (%) EFFICIENCY - Iout Vin=.9V 2.4V 1.8V 1.5V Vout1(V) Vout1 - Top Vin=1.5V, Iout=6mA Top( C) 2 Vst - Iout Load-Transient Response 2 s /div 1.5 Vst (V) C +25 C +7 C Vout, 5mV/div Iout 1mA A 14-12
13 Vout=5.V(ELM925xx) (L=2.2μH, Cout=47μF, D=MA75, Top=25 C) Vout - Vin Iout=15mA 6mA 1mA 1 2 Vin (V) Vout - Iout Vin=.9V.V 1.8V 1.5V EFFICIENCY (%) EFFICIENCY - Iout Vin=.9V.V 1.8V 1.5V Vout1(V) Vout1 - Top Vin=.V, Iout=6mA Top( C) 2 Vst - Iout Load-Transient Response 2 s /div 1.5 Vst (V) C +25 C +7 C Vout, 5mV/div Iout 1mA A 14-1
14 ELM9227xx, ELM92xx, ELM92xx, ELM925xx (L=2.2μH, Cout=47μF, D=MA75, Top=25 C) 6 Iss1 - Top 5 925XX Iss1 (A) 4 92XX 92XX 9227XX Top ( C) ELM92xxxx (L=2.2μH, Cout=47μF, D=MA75, Top=25 C) Fosc - Top Duty - Top Fosc (khz) Duty (%) Top ( C) Top ( C) Vceh - Vout Vcel - Vout Vceh(V) Top= -2 C +25 C +7 C Vcel(V) Top= -2 C +25 C +7 C Vout(V) Vout(V) 14-14
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Low Quiescent _Low Dropout CMOS Voltage Regulator HM53XX Series 500mA Ferture: high output accuracy ±2% low dropout 1.5mV Iout=1mA low quiescent current Max input Output current Applications ⒈2uA 10V 500mA
id8603 PFM Step-Up DC-DC Converters with Internal Schottky Diode General Description Applications Features Ordering Information Marking Information
PFM Step-Up DC-DC Converters with Internal Schottky Diode General Description The compact, high-efficiency, PFM step-up DC- DC converters are available in SOT-89-3,SOT-23-3 and SOT-23-5 packages. They
VRR Series. AnaSem. High speed, Low dropout, ±1% High output accuracy CMOS Voltage Regulator with On/Off circuit. Analog Semiconductor IC. AnaSem Inc.
AnaSem Analog Semiconductor IC High speed, Low dropout, ±% High output accuracy CMOS Voltage Regulator with On/Off circuit Rev. E9- Rev. E9- AnaSem Products Data Sheet Analog Semiconductor IC High speed,
ACE701D. PFM STEP-UP DC/DC Converter with High Efficiency and Low Noise
Description The series are CMOS-based PFM step-up DC-DC Converter. The converter can start up by supply voltage as low as 0.8V, and capable of delivering maximum 200mA output current at 3.3V output with
VRH Series. AnaSem. High speed, Low dropout, ±1% High output accuracy CMOS Voltage Regulator with On/Off circuit. Analog Semiconductor IC.
安纳森 Analog Semiconductor IC High speed, Low dropout, ±% High output accuracy CMOS Voltage Regulator with On/Off circuit (IMPORTANT: Please check the last page for Genuine Product Labeling) Rev. E- Website:
REV1.0 - AUG 2012 RELEASED
DESCRIPTION The consists of step-down switching regulator with PWM control. These devises include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc. provides low-ripple
TX9111 High Efficiency Low Noise PFM Step-up DC/DC Converter
Features Deliver 450mA at 5.0V Output voltage with 4.0V input Voltage Low start-up voltage (when the output current is 1mA): 0.8V Output voltage can be adjusted from 2.5V to 6.0V (In 0.1V step) Output
Limited. R5324x SERIES. Limited TRIPLE LDO OUTLINE FEATURES APPLICATIONS NO. EA
TRIPLE LDO R5324x SERIES NO. EA-99-1244 OUTLINE The R5324x Series are CMOS-based multi positive voltage regulator ICs with high output voltage accuracy, low supply current, low noise, low dropout and high
*1. Attention should be paid to the power dissipation of the package when the load is large. *2. Refer to Product Name Structure for details.
www.sii-ic.com HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR Seiko Instruments Inc., 21-21 Rev.5._ The S-L298 series is a positive voltage regulator with a low dropout voltage, high output
Low-Saturation voltage 300mA LDO Monolithic IC MM334x Series
Low-Saturation voltage 3mA LDO Monolithic IC MM334x Series Low-Saturation voltage 3mA LDO MM334x Series Outline This IC is a 3mA LDO with an ultra-low saturation voltage. This device features a 3 ma current
200mA Regulator IC Monolithic IC MM3404 Series
2mA Regulator IC Monolithic IC MM344 Series 2mA Regulator IC MM344 Series Outline This IC is a high speed response 2mA regulator IC with low quiescent current and high ripple rejection. No load input current
LR8301 Series LESHAN RADIO COMPANY, LTD. Introduction. Features. Ordering Information. Applications Power supply for portable equipment such 1/10
SMALL PACKAGE PFM CONTROL STEP-UP DC/DC CONVERTER Introduction The is a CMOS PFM-control step-up switching DC/DC converter that mainly consists of a reference voltage source, an oscillator, and a comparator.
PIN CONFIGURATION *The dissipation pad for the USP-6B package should be solder-plated in recommended mount pattern and metal masking so as to enhance
ETR0305_004a GENERAL DESCRIPTION The XC6206 series are highly precise, low power consumption, 3 terminal, positive voltage regulators manufactured using CMOS and laser trimming technologies. The series
PWM Step-Up DC/DC Converter for Panel Backlight. Features. Fig. 1
PWM Step-Up DC/DC Converter for Panel Backlight General Description The designed with high efficiency step up DC/DC converter for driving white LEDs. The device can drive up 11 white LEDs from a single
A7115. AiT Semiconductor Inc. APPLICATION ORDERING INFORMATION TYPICAL APPLICATION
DESCRIPTION The is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current with no load is 300uA and drops to
GPS,DSC,MP4,PDA,DVD Camera Notebook Data communication GND COUT. SOT23-5L ACP1217A ACP1217B Name Descriptions. 1 3 VIN Input voltage.
GENERAL DESCRIPTION The series are positive voltage regulator fabricated by CMOS process. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output voltage,
600mA Step-down DC/DC Converter with Synchronous Rectifier
RP57K1B 6mA Step-down DC/DC Converter with Synchronous Rectifier OUTLINE NO.EA-35-18529 The RP57K1B is a CMOS-based 6mA ( 1 ) step-down DC/DC converter with synchronous rectifier. Internally, a single
BL9641 DESCRIPTION APPLICATIONS PIN OUT TYPICAL APPLICATION. 42V Input Standoff Voltage, 0.7A Step-Down Converter
42V Input Standoff Voltage, 0.7A Step-Down Converter DESCRIPTION The BL9641 is a wide input range, high-efficiency, and high frequency DC-to-DC step-down switching regulator, capable of delivering up to
LN2351 SERIES SUPER-SMALL PACKAGE VFM CONTROL STEP-UP SWITCHING REGULATOR DESCRIPTION FEATURES APPLICATIONS PACKAGE BLOCK DIAGRAM
SUPER-SMALL PACKAGE VFM CONTROL STEP-UP SWITCHING REGULATOR LN5 SERIES DESCRIPTION The is a CMOS PFM-control step-up switching regulator that mainly consists of a reference voltage source, an oscillator,
300mA/150mA High Speed LDO Regulators with ON-OFF Control
ETR03004-010 300mA/150mA High Speed LDO Regulators with ON-OFF Control GENERAL DESCRIPTION The XC6204/XC6205 series are highly precise, low noise, positive voltage LDO regulators manufactured using CMOS
White LED Driver ICs Monolithic IC MM3097
White LED Driver ICs Monolithic IC MM3097 Outline This IC is a white LED driver IC. It is a step-up DC-DC converter IC designed to drive up to 7 LEDs and suitable for backlight drivers. Feedback voltage
CE8301 Series. Small Package PFM Control Step-Up DC/DC Converter INTRODUCTION FEATURES APPLICATIONS
Small Package PFM Control Step-Up DC/DC Converter INTRODUCTION The is a CMOS PFM-control step-up switching DC/DC converter. The PFM controller allows the duty ratio to be automatically switched according
HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR
Rev.3.2_ HIGH RIPPLE-REJECTION LOW DROPOUT LOW INPUT-AND-OUTPUT CAPACITANCE CMOS VOLTAGE REGULATOR S-12 Series The S-12 Series is a positive voltage regulator with a low dropout voltage, high output voltage
APPLICATIONS Mobile Phones Cordless phones and radio communication equipment Portable games Cameras, Video recorders Portable Audio Equipment PDAs
Low Power Consumption : μa (TYP.) Dropout Voltage : mv @ ma : mv @ma Range :.8V to.v Output Current : More than ma (ma limit) Low Output Noise High Ripple Rejection Rate Low ESR capacitor compatible GENERAL
A7108. AiT Semiconductor Inc. APPLICATION ORDERING INFORMATION TYPICAL APPLICATION
DESCRIPTION The is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no
XC6401 Series FEATURES. TYPICAL PERFORMANCE CHARACTERISTICS Interactive Load Transient Response TYPICAL APPLICATION CIRCUITS
XC Series ETR9_ Dual LDO Regulators, Low ESR Cap. Compatible GENERAL DESCRIPTION The XC series are highly accurate, Dual, low noise, CMOS LDO voltage regulators. Performance features of the series includes
High Speed LDO Regulators Low ESR Cap.Compatible,Output ON/OFFControl
ETR0306_006 High Speed LDO Regulators Low ESR Cap.Compatible,Output ON/OFFControl GENERAL DESCRIPTION The XC6209/XC6212 series are highly precise, low noise, positive voltage LDO regulators manufactured
Ceramic Capacitor compatible Stand-by function SOT-23-6W & DFN(PLP) Package
SERIES 1.2A, 30V Step Down DC_DC converter NO.EA-190-080331 OUTLINE The R1240x series are CMOS based Step down DC_DC converter. It has internal Nch high side Tr.(350m ohm Typ.) and can provide Maximum
APPLICATIONS Mobile, Cordless phones Palm top computers, PDAs Portable games Cameras, Digital cameras Note book PCs
Input Voltage Range : 2.5V ~ 20V Output Voltage Range : 2.5V ~ 16V (Fixed Voltage Type) : 30V + (Adjustable Type) Oscillation Frequency Range : 100kHz ~ 600kHz Output Current : Up to 1.5A Ceramic Capacitor
MT3420 Rev.V1.2 GENERAL DESCRIPTION FEATURES APPLICATIONS. 1.4MHz, 2A Synchronous Step-Down Converter
1.4MHz, 2A Synchronous Step-Down Converter FEATURES High Efficiency: Up to 96% 1.4MHz Constant Frequency Operation 2A Output Current No Schottky Diode Required 2.5V to 5.5V Input Voltage Range Output Voltage
VRD Series. AnaSem. High speed, Low dropout, ±1% High output accuracy CMOS Voltage Regulator with Dual output. Analog Semiconductor IC.
安纳森 Analog Semiconductor IC High speed, Low dropout, ±% High output accuracy CMOS Voltage Regulator with Dual output (IMPORTANT: Please check the last page for Genuine Product Labeling) Rev. E- Website:
CMOS Regulator Monolithic IC MM303X Series
CMOS Regulator Monolithic IC MM33X Series CMOS Regulator MM33X Series Outline This IC is a voltage regulator IC developed using the CMOS process. Super low consumption current of µa typ. (MM33X) (when
A8133 HIGH EFFICIENCY, HIGH POWER WHITE LED DRIVER 1MHz FREQUENCY, INTERNAL 2A MOSFET SWITCH
DESCRIPTION The is a boost DC-DC converter that delivers a regulated output current. The switches at a 1.0MHz constant frequency, allowing for the use of small value external inductor and ceramic capacitors.
XC9103/XC9104/XC9105 Series
XC9103/XC9104/XC9105 Series ETR0404_008 Ceramic Capacitor Compatible, Step-up DC/DC Controllers GreenOperation Compatible GENERAL DESCRIPTION The XC9103/XC9104/XC9105 series are PWM, PWM/PFM auto switching
EUP A,30V,1.2MHz Step-Down Converter DESCRIPTION FEATURES APPLICATIONS. Typical Application Circuit
1.2A,30V,1.2MHz Step-Down Converter DESCRIPTION The is current mode, step-down switching regulator capable of driving 1.2A continuous load with excellent line and load regulation. The can operate with
ELM824xA 3.0μA Very low power CMOS dual operational amplifier
ELM824xA 3.μA Very low power CMOS dual operational amplifier General description ELM824xA is a very low current consumption-typ.3.μa CMOS dual OP-AMP provided with a wide common mode input voltage range.
GENERAL DESCRIPTION FEATURES APPLICATIONS TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL APPLICATION CIRCUIT 1/17
ETR0305_002 GENERAL DESCRIPTION The XC6206 series are highly precise, low power consumption, high voltage, positive voltage regulators manufactured using CMOS and laser trimming technologies. The series
ACP1216. Low Dropout Positive Voltage Regulator GENERAL DESCRIPTION FEATURES APPLICATION CIRCUIT APPLICATION PIN CONFIGURATION ACP1216
GENERAL DESCRIPTION The series are positive voltage regulator ICs fabricated by CMOS process. Each of these ICs consists of a voltage reference, an error amplifier, a resistor network for setting output
XLSEMI. Datasheet. 2A 150KHz 40V Buck DC to DC Converter. Features. General Description. Applications
Features Wide 4.75 to 40V Input Voltage Range 3.3V,5V,12V, and adjustable versions Output Adjustable from 1.23V to 38V Maximum Duty Cycle 100% Minimum Drop Out 1.5V Fixed 150KHz Switching Frequency 2A
XC62H Series GENERAL DESCRIPTION APPLICATIONS FEATURES TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL APPLICATION CIRCUIT
ETR0312_006 Positive Voltage Regulator with (Output ON/OFF) GENERAL DESCRIPTION The XC62H series are highly precise, low power consumption, positive voltage regulators, manufactured using CMOS and laser
LOW DROPOUT CMOS VOLTAGE REGULATOR S-818 Series
Rev.1.2 LOW DROPOUT CMOS VOLTAGE REGULATOR The is a positive voltage regulator developed utilizing CMOS technology featured by low dropout voltage, high output voltage accuracy and low current consumption.
L1 1 2 D1 B uF R5 18K (Option ) R4 1.1K
PWM CONTROL 3A STEP-DOWN CONVERTER FEATURES DESCRIPTION Input Voltage : 8V to 40V Output Voltage : 3.3V to 38V Duty Ratio : 0% to 100% PWM Control Oscillation Frequency Range is 50K~350KHz by Outside Resistance
XLSEMI. Datasheet. 3A 150KHz 30V Buck DC to DC Converter. Features. General Description. Applications
Features Wide 4.75V to 30V Input Voltage Range 3.3V,5V,12V, and adjustable versions Output Adjustable from 1.23V to 28V Maximum Duty Cycle 100% Minimum Drop Out 1.5V Fixed 150KHz Switching Frequency 3A
AP1513. PWM Control 2A Step-Down Converter. Features. General Description. Applications. Pin Descriptions. Pin Assignments
Features Input voltage: 3.6V to 18V. voltage: 0.8V to V CC. Duty ratio: 0% to 100% PWM control Oscillation frequency: 300KHz typ. Softstart, Current limit, Enable function Thermal Shutdown function Builtin
HM3410D Low Noise, Fast Transient 1A Step-Down Converter
General Description The HM3410D is a 1.4MHz step-down converter with an input voltage range of 2.3V to 6.0V and output voltage as low as 0.6V. It is optimized to react quickly to a load variation. The
HT77xxS 100mA PFM Synchronous Step-up DC/DC Converter
1mA PFM Synchronous Step-up DC/DC Converter Features Low start-up voltage:.7v (Typ.) High efficiency: 1.8V V OUT 2.2V upper 8%, 2.7V V OUT 5.V upper 85% (Typ.) High output voltage accuracy: ±2.5% Output
1.5MHz 600mA, Synchronous Step-Down Regulator. Features
1.5MHz 600mA, Synchronous Step-Down Regulator General Description is designed with high efficiency step down DC/DC converter for portable devices applications. It features with extreme low quiescent current
RT9261B. VFM Step-Up DC/DC Converter. General Description. Features. Ordering Information RT9261B- Package Type B : SOT-23-5 X : SOT-89.
VFM Step-Up DC/DC Converter General Description The RT9261B Series are VFM Step-up DC/DC converter ICs with ultra low supply current by CMOS process and suitable for use with battery-powered instruments.
A7523. AiT Semiconductor Inc. APPLICATION ORDERING INFORMATION
DESCRIPTION The is a compact, high efficiency, and low voltage step-up DC/DC converter with an Adaptive Current Mode PWM control loop, includes an error amplifier, ramp generator, comparator, switch pass
XC9201 Series GENERAL DESCRIPTION FEATURES APPLICATIONS TYPICAL APPLICATION CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS
ETR0502_004 PWM Controlled Step-Down DC/DC Controllers GENERAL DESCRIPTION The XC9201 series are step-down multiple current and voltage feedback DC/DC controller ICs. Current sense, clock frequencies and
XC6214 Series. FEATURES Maximum Output Current APPLICATIONS. TYPICAL PERFORMANCE CHARACTERISTICS Dropout Voltage vs. Output Current XC6214P332
XC6 Series ETR8_ ma Output Current, High Speed LDO Regulators, Thermal Shutdown Function, Ceramic Capacitor Compatible GENERAL DESCRIPTION The XC6 series are highly precise, low noise, high current, positive
A7632A. AiT Semiconductor Inc. APPLICATION ORDERING INFORMATION TYPICAL APPLICATION
DESCRIPTION The is a constant frequency, current mode step-up converter intended for small, low power applications. The switches at 1.2MHz and allows the use of tiny, low cost capacitors and inductors
1.5MHz 600mA, Synchronous Step-Down Regulator. Features
1.5MHz 600mA, Synchronous Step-Down Regulator General Description is designed with high efficiency step down DC/DC converter for portable devices applications. It features with extreme low quiescent current
ELM614BA 2A, 18V, 500kHz, synchronous step down DC/DC converter
General description Maximum absolute ratings ELM614BA is a highfrequency, synchronous, rectified, stepdown, switchmode converter with internal power MOSFETs. It offers a very compact solution to achieve
GENERAL DESCRIPTION FEATURES APPLICATIONS TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL APPLICATION CIRCUIT 1/17. Battery powered equipment
ETR0305_003a GENERAL DESCRIPTION The XC6206 series are highly precise, low power consumption, high voltage, positive voltage regulators manufactured using CMOS and laser trimming technologies. The series
深圳市科信威电子有限公司科芯微电子 ( 香港 ) 有限公司
PFM Step-up DC/DC Converter, KX2108 Series General Description KX2108 Series is a PFM Step-up DC/DC converter IC with low supply current by CMOS process. High frequency noise that occurs during switching
4 A Forced PWM Step-down DC/DC Converter with Synchronous Rectifier
Series 4 A Forced PWM Step-down DC/DC Converter with Synchronous Rectifier OVERVIEW The RP510L is a step-down DC/DC converter that operates the low input voltage of 2.5 V to 5.5 V. The RP510L being suitable
Battery Powered, High Efficiency Synchronous DC/DC Boost Converter. Features
Battery Powered, High Efficiency Synchronous DC/DC Boost Converter General Description designed with high efficiency step up DC/DC converter for portable devices applications. It features with extreme
UM1660. Low Power DC/DC Boost Converter UM1660S SOT23-5 UM1660DA DFN AAG PHO. General Description
General Description Low Power DC/DC Boost Converter S SOT23-5 DA DFN6 2.0 2.0 The is a PFM controlled step-up DC-DC converter with a switching frequency up to 1MHz. The device is ideal to generate output
LSP5504. PWM Control 2A Step-Down Converter. Applications. General Description. Features LSP5504. Typical Application Circuit
Applications Cellular Phones PC Motherboard LCD Monitor Graphic Card DVD-Video Player Telecom Equipment ADSL Modem Networking power supply Microprocessor core supply Printer and other Peripheral Equipment
CONENTS. ITEM(Page 1~2)
CONENTS ITEM(Page 1~2) NOTES(Page 3) PRODUCT SELECTION GUIDE(Page 4~8 CHAPTER 1 LOGICIC(Page 9) V7SxxB CMOS logic(page 10~11) V7SHxxxB CMOS High speed logic(page 12~~14) CHAPTER 2 VOLTAGE COMPARATOR(Page
40V Boost Converter for LED driver / TFT Bias / USB Power
40V Boost Converter for LED driver / TFT Bias / USB Power DESCRIPTION The is a high efficiency step-up converter with an internally integrated 40V power MOSEFT. It runs with an optimal 0.8MHz frequency
White LED Step-Up Converter
FEATURES Inherently Matched LED Current Drives Up to 27 LEDs from a 5V Supply Power Management IC 36V Rugged Bipolar Switch Fast 1.2MHz Switching Frequency Vovp(MAX) = 29V Moisture Sensitivity Level 3