FEATURES TYPICAL APPLICATIO. LTC1751/LTC /LTC Micropower, Regulated Charge Pump DC/DC Converters DESCRIPTIO APPLICATIO S

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1 Micropower, Regulated Charge Pump DC/DC Converters FEATRES 5V Output Current: ma ( V).V Output Current: ma (.5V) ltralow Power: µa Quiescent Current Regulated Output Voltage:.V ±%, 5V ±%, ADJ No Inductors Short-Circuit/Thermal Protection Range: V to 5.5V khz Switching Frequency Very Low Shutdown Current: <µa Shutdown Disconnects Load from PowerGood/ndervoltage Output Adjustable Soft-Start Time Available in an -Pin MSOP Package APPLICATIO S Li-Ion Battery Backup Supplies Local V and 5V Conversion Smart Card Readers PCMCIA Local 5V Supplies White LED Backlighting DESCRIPTIO The LTC 5 family are micropower charge pump DC/ DC converters that produce a regulated output voltage at up to ma. The input voltage range is V to 5.5V. Extremely low operating current (µa typical with no load) and low external parts count (one flying capacitor and two small bypass capacitors at and ) make them ideally suited for small, battery-powered applications. The LTC5 family operate as Burst Mode TM switched capacitor voltage doublers to achieve ultralow quiescent current. They have thermal shutdown capability and can survive a continuous short circuit from to. The pin on the LTC5-. and LTC5-5 indicates when the output voltage has reached its final value and if the output has an undervoltage fault condition. The FB pin of the adjustable LTC5 can be used to program the desired output voltage or current. An optional soft-start capacitor may be used at the SS pin to prevent excessive inrush current during start-up. The LTC5 family is available in an -pin MSOP package., LTC and LT are registered trademarks of Linear Technology Corporation. Burst Mode is a trademark of Linear Technology Corporation. TYPICAL APPLICATIO.V TO 5.5V C OFF ON Regulated 5V Output from a.v to 5.5V Input LTC5-5 SS C 6 C 5 R k C FLY µf 5V ±% C I OT ma, V I OT 5mA,.V OTPT VOLTAGE (V) Output Voltage vs Input Voltage I OT = 5mA C OT = T A = C T A = 5 C T A = 5 C 5 TA C FLY = MRATA GRM9X5R5K6.AJ C, C = MRATA GRMX5R6K6.AJ TA

2 ABSOLTE AXI RATI GS W W W (Note ) to....v to 6V, FB, to....v to 6V SS, to....v to (.V) Short-Circuit Duration... Indefinite I OT (Note )... 5mA Operating Temperature Range (Note ).. C to 5 C Storage Temperature Range C to 5 C Lead Temperature (Soldering, sec)... C W PACKAGE/ORDER I FOR ATIO FB/* TOP VIEW MS PACKAGE -LEAD PLASTIC MSOP SS 6 C 5 C T JMAX = 5 C, θ JA = 6 C/W * ON LTC5-./LTC5-5 FB ON LTC5 ORDER PART NMBER LTC5EMS LTC5EMS-. LTC5EMS-5 MS PART MARKING LTKL LTKN LTKP Consult factory for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full specified temperature range, otherwise specifications are at T A = 5 C., C IN =, C OT = unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX NITS LTC5-. Input Supply Voltage. V Output Voltage V.V, I OT ma... V.5V.V, I OT ma... V I CC Operating Supply Current V.V, I OT = ma, = µa V R Output Ripple =.5V, I OT = ma 6 mv P-P η Efficiency = V, I OT = ma % LTC5-5 Input Supply Voltage. 5.5 V Output Voltage.V 5.5V, I OT 5mA V V 5.5V, I OT ma V I CC Operating Supply Current.V 5.5V, I OT = ma, = 5 µa V R Output Ripple = V, I OT = 5mA 5 mv P-P η Efficiency = V, I OT = 5mA % LTC5 Input Supply Voltage 5.5 V I CC Operating Supply Current V 5.5V, I OT = ma, = (Note ) 6 µa V FB FB Regulation Voltage V 5.5V, I OT ma V I FB FB Input Current V FB =.V 5 5 na R OT Open-Loop Charge Pump Strength = V, =.V (Note 5).5 Ω =.V, = 5V (Note 5) 6. Ω

3 ELECTRICAL CHARACTERISTICS The denotes specifications which apply over the full specified temperature range, otherwise specifications are at T A = 5 C., C IN =, C OT = unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX NITS LTC5-./LTC5-5 VL ndervoltage Low Threshold Relative to Regulated (Note 6) % VH ndervoltage High Threshold Relative to Regulated (Note 6).5 % V OL Low Output Voltage I = 5µA. V I OH High Output Leakage V = 5.5V µa LTC5/LTC5-./LTC5-5 I Shutdown Supply Current.6V, = V, V = V. µa.6v <, = V, V = V 5 µa V IH Input Threshold (High).5 V V IL Input Threshold (Low). V I IH Input Current (High) = µa I IL Input Current (Low) = V µa t r Rise Time = V, I OT = ma, % to 9% (Note 6).6ms/nF C SS sec f OSC Switching Frequency Oscillator Free Running khz Note : Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note : Based on long term current density limitations. Note : The LTC5EMS-X is guaranteed to meet performance specifications from C to C. Specifications over the C to 5 C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note : The no load input current will be approximately I CC plus twice the standing current in the resistive output divider. Note 5: R OT ( )/I OT. Note 6: See Figure. TYPICAL PERFOR A CE CHARACTERISTICS (LTC5-.) OTPT VOLTAGE (V) W Output Voltage vs Load Current T A = 5 C = V =.5V OTPT VOLTAGE (V). IOT = ma C OT =.5..5 Output Voltage vs Input Voltage T A = 5 C T A = C T A = 5 C SPPLY CRRENT (µa) IOT = ma V = No Load Supply Current vs Input Voltage T A = 5 C T A = 5 C T A = C LOAD CRRENT (ma) G 5 G 5 G

TYPICAL PERFOR A CE CHARACTERISTICS (LTC5-.) EFFICIENCY (%) 9 6 5.

Short-Circuit Output Current vs Input Voltage 5

C.5..5..5 5 G5 Start-p Output Ripple Load Transient Response V/DIV 5V/DIV V/DIV AC COPLED 5mV/DIV I OT ma/div

4 TYPICAL PERFOR A CE CHARACTERISTICS (LTC5-.) EFFICIENCY (%) W Power Efficiency vs Load Current T A = 5 C C OT = = V =.5V =.V =.V.. LOAD CRRENT (ma) 5 G OTPT CRRENT (ma) 5 5. Short-Circuit Output Current vs Input Voltage 5 TA = 5 C G5 Start-p Output Ripple Load Transient Response V/DIV 5V/DIV V/DIV AC COPLED 5mV/DIV I OT ma/div AC COPLED 5mV/DIV C SS = nf ms/div 5 G6 =.5V 5µs/DIV 5 G I OT = ma C OT = =.5V 5µs/DIV 5 G (LTC5-5) Output Voltage vs Output Current No Load Supply Current vs Input Voltage OTPT VOLTAGE (V) 5. TA = 5 C = V =.V SPPLY CRRENT (µa) I OT = V = T A = 5 C T A = 5 C T A = C. 5 5 OTPT CRRENT (ma) G9 5 G

TYPICAL PERFOR A CE CHARACTERISTICS (LTC5-5) EFFICIENCY (%) 9 6 5 W Power Efficiency vs Load Current. T A = 5 C C OT = =.V =.V = 5.5V.. LOAD CRRENT (ma) 5 G LTC5/LTC5-./LTC5-5 OTPT CRRENT (ma) 5 5 5.

CTIO S (Pin ) (LTC5-./LTC5-5): Output Voltage Status Indicator. On start-up, this open-drain pin remains low until the output voltage,, is within.5% (typ) of its final value.

5 TYPICAL PERFOR A CE CHARACTERISTICS (LTC5-5) EFFICIENCY (%) W Power Efficiency vs Load Current. T A = 5 C C OT = =.V =.V = 5.5V.. LOAD CRRENT (ma) 5 G LTC5/LTC5-./LTC5-5 OTPT CRRENT (ma) Short-Circuit Output Current vs Input Voltage T A = 5 C G Start-p Output Ripple Load Transient Response V/DIV 5V/DIV V/DIV AC COPLED 5mV/DIV I OT 5mA/DIV AC COPLED 5mV/DIV C SS = nf ms/div 5 G = V 5µs/DIV 5 G I OT = ma C OT = = V 5µs/DIV 5 G5 PI F CTIO S (Pin ) (LTC5-./LTC5-5): Output Voltage Status Indicator. On start-up, this open-drain pin remains low until the output voltage,, is within.5% (typ) of its final value. Once is valid, becomes high-z. If, due to a fault condition, falls % (typ) below its correct regulation level, pulls low. may be pulled up through an external resistor to any appropriate reference level. FB (Pin ) (LTC5): The voltage on this pin is compared to the internal reference voltage (.5V) by the error comparator to keep the output in regulation. An external resistor divider is required between and FB to program the output voltage. (Pin ): Regulated Output Voltage. For best performance, should be bypassed with a 6.µF (min) low ESR capacitor as close to the pin as possible. (Pin ): Input Supply Voltage. should be bypassed with a 6.µF (min) low ESR capacitor. (Pin ): Ground. Should be tied to a ground plane for best performance. C (Pin 5): Flying Capacitor Negative Terminal. C (PIN 6): Flying Capacitor Positive Terminal. (Pin ): Active Low Shutdown Input. A low on disables the device. must not be allowed to float. SS (Pin ): Soft-Start Programming Pin. A capacitor on SS programs the start-up time of the charge pump so that large start-up input current is eliminated. 5

6 SI PLIFIED W BLOCK DIAGRA S W LTC5-./LTC5-5 READY µa SS V REF NDERV CONTROL COMP CHARGE PMP 6 C 5 C 5 BD LTC5 µa FB SS V REF CONTROL COMP CHARGE PMP 6 C 5 C 6 5 BD

7 APPLICATIO S I FOR ATIO W Operation (Refer to Simplified Block Diagrams) The LTC5 family uses a switched capacitor charge pump to boost to a regulated output voltage. Regulation is achieved by sensing the output voltage through a resistor divider and enabling the charge pump when the divided output drops below the lower trip point of COMP. When the charge pump is enabled, a -phase nonoverlapping clock activates the charge pump switches. The flying capacitor is charged to on phase of the clock. On phase of the clock, it is stacked in series with and connected to. This sequence of charging and discharging the flying capacitor continues at the clock frequency until the divided output voltage reaches the upper trip point of COMP. Once this happens the charge pump is disabled. When the charge pump is disabled the device typically draws less than µa from thus providing high efficiency under low load conditions. In shutdown mode all circuitry is turned off and the LTC5 draws only leakage current from the supply. Furthermore, is disconnected from. The pin is a CMOS input with a threshold voltage of approximately.v. The LTC5 is in shutdown when a logic low is applied to the pin. The quiescent supply current of the LTC5 will be slightly higher if the pin is driven high with a voltage that is below than if it is driven all the way to. Since the pin is a high impedance CMOS input it should never be allowed to float. To ensure that its state is defined it must always be driven with a valid logic level. Power Efficiency The efficiency (η) of the LTC5 family is similar to that of a linear regulator with an effective input voltage of twice the actual input voltage. This occurs because the input current for a voltage doubling charge pump is approximately twice the output current. In an ideal regulated doubler the power efficiency would be given by: POT VOT IOT V η= = = P V I V IN IN OT OT IN At moderate to high output power, the switching losses and quiescent current of the LTC5 are negligible and the expression is valid. For example, an LTC5-5 with = V, I OT = 5mA and regulating to 5V, has a measured efficiency of % which is in close agreement with the theoretical.% calculation. The LTC5 product family continues to maintain good efficiency even at fairly light loads because of its inherently low power design. Short-Circuit/Thermal Protection During short-circuit conditions, the LTC5 will draw between ma and ma from causing a rise in the junction temperature. On-chip thermal shutdown circuitry disables the charge pump once the junction temperature exceeds approximately 6 C and re-enables the charge pump once the junction temperature drops back to approximately 5 C. The device will cycle in and out of thermal shutdown indefinitely without latchup or damage until the short circuit on is removed., Capacitor Selection The style and value of capacitors used with the LTC5 family determine several important parameters such as output ripple, charge pump strength and minimum start-up time. To reduce noise and ripple, it is recommended that low ESR (<.Ω) capacitors be used for both C IN and C OT. These capacitors should be either ceramic or tantalum and should be 6.µF or greater. Aluminum capacitors are not recommended because of their high ESR. If the source impedance to is very low, up to several megahertz, C IN may not be needed. Alternatively, a somewhat smaller value of input capacitor may be adequate, but will not be as effective in preventing ripple on the pin. The value of C OT controls the amount of output ripple. Increasing the size of C OT to or greater will reduce the output ripple at the expense of higher minimum turn on time and higher start-up current. See the section Output Ripple.

8 APPLICATIO S I FOR ATIO Flying Capacitor Selection W Warning: A polarized capacitor such as tantalum or aluminum should never be used for the flying capacitor since its voltage can reverse upon start-up of the LTC5. Low ESR ceramic capacitors should always be used for the flying capacitor. The flying capacitor controls the strength of the charge pump. In order to achieve the rated output current, it is necessary to have at least.6µf of capacitance for the flying capacitor. Capacitors of different materials lose their capacitance with higher temperature and voltage at different rates. For example, a ceramic capacitor made of XR material will retain most of its capacitance from C to 5 C, whereas, a Z5 or Y5V style capacitor will lose considerable capacitance over that range. Z5 and Y5V capacitors may also have a very strong voltage coefficient causing them to lose 5% or more of their capacitance when the rated voltage is applied. The capacitor manufacturer s data sheet should be consulted to determine what value of capacitor is needed to ensure.6µf at all temperatures and voltages. Generally an XR ceramic capacitor is recommended for the flying capacitor with a minimum value of µf. For very low load applications, it may be reduced to.µf-.6µf. A smaller flying capacitor delivers less charge per clock cycle to the output capacitor resulting in lower output ripple. The output ripple is reduced at the expense of maximum output current and efficiency. The theoretical minimum output resistance of a voltage doubling charge pump is given by: R OT( MIN) VIN VOT = I fc OT Where f if the switching frequency and C is the value of the flying capacitor. (sing units of MHz and µf is convenient since they cancel each other.) Note that the charge pump will typically be weaker than the theoretical limit due to additional switch resistance. However, for light load applications, the above expression can be used as a guideline in determining a starting capacitor value. Below is a list of ceramic capacitor manufacturers and how to contact them: AVX Kemet Murata Taiyo Yuden Vishay Output Ripple Low frequency regulation mode ripple exists due to the hysteresis in the sense comparator and propagation delays in the charge pump control circuits. The amplitude and frequency of this ripple are heavily dependent on the load current, the input voltage and the output capacitor size. For large the ripple voltage can become substantial because the increased strength of the charge pump causes fast edges that may outpace the regulation circuitry. In some cases, rather than bursting, a single output cycle may be enough to boost the output voltage into or possibly beyond regulation. In these cases the average output voltage will climb slightly. For large input voltages a larger output capacitor will ensure that bursting always occurs, thus mitigating possible DC problems. Generally the regulation ripple has a sawtooth shape associated with it. A high frequency ripple component may also be present on the output capacitor due to the charge transfer action of the charge pump. In this case, the output can display a voltage pulse during the output-charging phase. This pulse results from the product of the charging current and the ESR of the output capacitor. It is proportional to the input voltage, the value of the flying capacitor and the ESR of the output capacitor. For example, typical combined output ripple for an LTC5-5 with = V under maximum load is 5mV P-P with a low ESR output capacitor. A smaller output capacitor and/or larger output current load will result in higher ripple due to higher output voltage slew rates.

9 APPLICATIO S I FOR ATIO W There are several ways to reduce output voltage ripple. For applications requiring to exceed.v or for applications requiring < mv of peak-to-peak ripple, a larger C OT capacitor (µf or greater) is recommended. A larger capacitor will reduce both the low and high frequency ripple due to the lower charging and discharging slew rates as well as the lower ESR typically found with higher value (larger case size) capacitors. A low ESR ceramic output capacitor will minimize the high frequency ripple, but will not reduce the low frequency ripple unless a high capacitance value is used. An R-C filter may also be used to reduce high frequency voltages spikes (see Figure ). LTC5-X Note that when using a larger output capacitor the minimum turn-on time of the device will increase. Soft-Start The LTC5 family has built-in soft-start circuitry to prevent excessive current flow at during start-up. The soft-start time is programmed by the value of the capacitor at the SS pin. Typically a µa current is forced out of SS causing a ramp voltage on the SS pin. The regulation loop follows this ramp voltage until the output reaches the correct regulation level. SS is automatically pulled to ground whenever is low. The typical rise time is given by the expression: Ω TANT TANT 5V 5 F Figure. Output Ripple Reduction Technique various parameters such as temperature, output loading, charge pump and flying capacitor values and input voltage. and ndervoltage Detection The pin on the LTC5-./LTC5-5 performs two functions. On start-up, it indicates when the output has reached its final regulation level. After start-up, it indicates when a fault condition, such as excessive loading, has pulled the output out of regulation. Once the LTC5-./LTC5-5 are enabled via the pin, ramps to its final regulation value slowly by following the SS pin. The pin switches from low impedance to high impedance after reaches its regulation value. If is subsequently pulled below its correct regulation level, the pin pulls low again indicating that a fault exists. Alternatively, if there is a short circuit on preventing it from ever reaching its correct regulation level, the pin will remain low. The lower fault threshold, VL, is preprogrammed to recognize errors of % below nominal. The upper fault threshold, VH, is preprogrammed at.5% below nominal. Figure shows an example of the pin with a normal start-up followed by an undervoltage fault. sing an external pull-up resistor, the pin can be pulled high from any available voltage supply, including the LTC5-./LTC5-5 pin. If is not used it may be connected to. t r =.6ms/nF C SS For example, with a.nf capacitor the % to 9% rise time will be approximately.ms. If the output charge storage capacitor is, then the average output current for an LTC5-5 will be V/.ms or ma, giving ma at the pin. The soft-start feature is optional. If there is no capacitor on SS, the output voltage of the LTC5 will ramp up as quickly as possible. The start-up time will depend on t r 9% VL % TIME VH 55 F Figure. During Start-p and ndervoltage 9

10 APPLICATIO S I FOR ATIO Programming the LTC5 Output Voltage (FB Pin) While the LTC5-./LTC5-5 versions have internal resistive dividers to program the output voltage, the programmable LTC5 may be set to an arbitrary voltage via an external resistive divider. Since it employs a voltage doubling charge pump, it is not possible to achieve output voltages greater than twice the available input voltage. Figure shows the required voltage divider connection. The voltage divider ratio is given by the expression: R VOT = R. 5V FB 5 F W R R.5V R R C OT ( ) Figure. Programming the Adjustable LTC5 The sum of the voltage divider resistors can be made large to keep the quiescent current to a minimum. Any standing current in the output divider (given by.5v/r) will be reflected by a factor of in the input current. Typical values for total voltage divider resistance can range from several kωs up to MΩ. Maximum Available Output Current For the adjustable LTC5, the maximum available output current and voltage can be calculated from the effective open-loop output resistance, R OT, and effective output voltage, (MIN). From Figure the available current is given by: I OT VIN V = R OT OT Typical R OT values as a function of input voltage are shown in Figure 5. OTPT RESISTANCE (Ω) Figure 5. Typical R OT vs Input Voltage Layout Considerations Due to high switching frequency and high transient currents produced by the LTC5 product family, careful board layout is necessary. A true ground plane and short connections to all capacitors will improve performance and ensure proper regulation under all conditions. Figure 6 shows the recommended layout configuration. Thermal Management For higher input voltages and maximum output current, there can be substantial power dissipation in the LTC5. If the junction temperature increases above approximately 6 C, the thermal shutdown circuitry will automatically deactivate the output. To reduce the maximum junction temperature, a good thermal connection to the PC board is recommended. Connecting the pin (Pin ) to a ground plane, and maintaining a solid ground plane under the device on two layers of the PC board, will reduce the thermal resistance of the package and PC board system considerably. 6. T A = 5 C I OT = ma I OT = 5mA F5 R OT 5 F Figure. Equivalent Open-Loop Circuit Figure 6. Recommended Layout 55 F

11 TYPICAL APPLICATIO S µf SB Port to Regulated 5V Power Supply with Soft-Start -Cell NiCd or NiMH to.v with Low Standby Current µf Ω nf 5 6 C C LTC5-5 SS = 5V k -CELL NiCd OR NiMH OFF ON nf 5 6 C C LTC5-. SS.V ma k 5 TA 5 TA6 Boosted Constant Current Source µf OFF ON 5 6 C C LTC5 SS FB I L =.5V R X LOAD R X 5 TA Low Power Battery Backup with Auto Switchover and No Reverse Current µf Si5DY = 5V IN.M 5k -CELL NiCd BATTERY pf 5 6 C C LTC5-5 SS BAT5C = 5V I OT ma k HIGH = BACKP MODE 6 LTC5 5k k 5 HYST M 5 TA5 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

12 TYPICAL APPLICATIO Current Mode White or Blue LED Driver with PWM Brightness Control C µf Li-Ion BATTERY V TO.5V C V ms t C 6pF C C SS 6 5 LTC5 FB C Ω Ω P TO 6 LEDS Ω Ω Ω Ω 5 TA PACKAGE DESCRIPTIO Dimensions in inches (millimeters) unless otherwise noted.. (.). ±.6 (.5 ±.5) 6 TYP SEATING PLANE MS Package -Lead Plastic MSOP (LTC DWG # 5--66). (.) MAX.9.5 (..).56 (.65) BSC. (.6) REF.5 ±. (. ±.5) * DIMENSION DOES NOT INCLDE MOLD FLASH, PROTRSIONS OR GATE BRRS. MOLD FLASH, PROTRSIONS OR GATE BRRS SHALL NOT EXCEED.6" (.5mm) PER SIDE ** DIMENSION DOES NOT INCLDE INTERLEAD FLASH OR PROTRSIONS. INTERLEAD FLASH OR PROTRSIONS SHALL NOT EXCEED.6" (.5mm) PER SIDE MSOP (MS). ±.* (. ±.).9 ±.6 (.9 ±.5) 6 5. ±.** (. ±.) RELATED PARTS PART NMBER DESCRIPTION COMMENTS LTC Charge Pump Inverter with Shutdown = V to V, 5V to 5V Supply LTC6 V, ma Flash Memory Prog. Supply Regulated V ±5% Output, I Q = 5µA LTC5/LTC55 Buck/Boost Charge Pumps with I Q = 6µA 5mA Output at V,.V or 5V; V to V Input LTC56 Micropower 5V Charge Pump I Q = µa, p to 5mA Output, = V to 5V LTC5-5/LTC5-. Micropower 5V/.V Doubler Charge Pumps I Q = 6µA, p to ma Output LTC5 Micropower 5V Doubler Charge Pump I Q = 6µA, p to ma Output LTC555/LTC556 SIM Card Interface Step-p/Step-Down Charge Pump, =.V to V LTC6 Low Noise Doubler Charge Pump Output Noise = 6µV RMS,.5V to 5.5V Output LTC5-5 Micropower 5V Doubler Charge Pump I Q = µa, p to 5mA Output, SOT- Package LTC55 Smart Card Interface Buck/Boost Charge Pump, I Q = 6µA, =.V to 6V LTC Constant Frequency Doubler Charge Pump Low Noise, 5V Output or Adjustable Linear Technology Corporation 6 McCarthy Blvd., Milpitas, CA 955- ()-9 FAX: () f LT/TP K PRINTED IN SA LINEAR TECHNOLOGY CORPORATION

U APPLICATIO S. LTC3200/LTC Low Noise, Regulated Charge Pump DC/DC Converters FEATURES DESCRIPTIO TYPICAL APPLICATIO

U APPLICATIO S. LTC3200/LTC Low Noise, Regulated Charge Pump DC/DC Converters FEATURES DESCRIPTIO TYPICAL APPLICATIO Low Noise, Regulated Charge Pump DC/DC Converters FEATRES Low Noise Constant Frequency Operation Output Current: 00mA Available in 8-Pin MSOP (LTC00) and Low Profile (mm) 6-Pin ThinSOT TM (LTC00-5) Packages