LTC3261 Series

High Voltage, Low Quiescent Current Inverting Charge Pump

Catalog

High Voltage, Low Quiescent Current Inverting Charge Pump

Part	Mounting Type	Voltage - Input (Max) [Max]	Package / Case	Package / Case	Current - Output	Output Configuration	Function	Number of Outputs	Supplier Device Package	Output Type	Voltage - Output (Min/Fixed) [Min]	Voltage - Output (Min/Fixed) [Max]	Voltage - Input (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching
Analog Devices LTC3261HMSE#TRPBF	Surface Mount	32 V	12-TSSOP Exposed Pad	0.118 in 3 mm	100 mA	Positive or Negative	Ratiometric	1	12-MSOP-EP	1.81 mOhm	-Vin	Vin/2	4.5 V	150 °C	-40 °C	500 kHz
Analog Devices LTC3261EMSE#TRPBF	Surface Mount	32 V	12-TSSOP Exposed Pad	0.118 in 3 mm	100 mA	Positive or Negative	Ratiometric	1	12-MSOP-EP	1.81 mOhm	-Vin	Vin/2	4.5 V	125 ¯C	-40 °C	500 kHz
Analog Devices LTC3261MPMSE#TR	Surface Mount	32 V	12-TSSOP Exposed Pad	0.118 in 3 mm	100 mA	Positive or Negative	Ratiometric	1	12-MSOP-EP	1.81 mOhm	-Vin	Vin/2	4.5 V	150 °C	-55 °C	500 kHz

Catalog

High Voltage, Low Quiescent Current Inverting Charge Pump

Key Features

• 4.5V to 32V VINRange

• Inverting Charge Pump Generates –VIN

• 60μA Quiescent Current in Burst Mode®Operation

• Charge Pump Output Current Up to 100mA

• 50kHz to 500kHz Programmable Oscillator Frequency

• Short-Circuit/Thermal Protection

• Low Profile Thermally Enhanced 12-Pin MSOP Package

Description

The LTC3261 is a high voltage inverting charge pump that operates over a wide 4.5V to 32V input range and is capable of delivering up to 100mA of output current.The charge pump employs either low quiescent current Burst Mode operation or low noise constant frequency mode. In Burst Mode operation the charge pump VOUTregulates to –0.94 • VINand the LTC3261 draws only 60μA of quiescent current. In constant frequency mode the charge pump produces an output equal to –VINand operates at a fixed 500kHz or to a programmed frequency between 50kHz to 500kHz using an external resistor. The LTC3261 is available in a thermally enhanced 12-pin MSOP package.ApplicationsBipolar/Inverting SuppliesIndustrial/Instrumentation Bias GeneratorsPortable Medical EquipmentPortable Instruments