TC1240 Series

Positive Doubling Charge Pumps with Shutdown

Catalog

Positive Doubling Charge Pumps with Shutdown

Part	Voltage - Input (Max)	Output Configuration	Topology	Operating Temperature (Max)	Operating Temperature (Min)	Package Name	Current - Output	Voltage - Input (Min)	Synchronous Rectifier	Mounting Type	Number of Outputs	Output Type	Package / Case	Frequency - Switching	Voltage - Output (Min/Fixed)	Voltage - Output (Min/Fixed)	Function
Microchip Technology TC1240AECHTR	5.5 V	Positive	Charge Pump	85 °C	-40 °C	SOT-23-6	40 mA	2.5 V	No	Surface Mount	1	Fixed	SOT-23-6	80 kHz	2Vin	2 V	Ratiometric
Microchip Technology TC1240ECHTR	4 V	Positive	Charge Pump	85 °C	-40 °C	SOT-23-6	40 mA	2.5 V	No	Surface Mount	1	Fixed	SOT-23-6	80 kHz	2Vin	2 V	Ratiometric

Catalog

Positive Doubling Charge Pumps with Shutdown

Description

The TC1240A is a doubling CMOS charge-pump voltage converter in a small 6-Pin SOT-23A package. TC1240A doubles an input voltage which can range from +2.5V to +5.5V. Conversion efficiency is typically >99%. Internal oscillator frequency is 160kHz for the TC1240A. The TC1240A has an active high shutdown which limits the current consumption of the device to less than 1µA. External component requirement is only two capacitors for standard voltage doubler applications. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Typical supply current is 550µA and the device is available in a 6-Pin SOT-23A surface mount package.