Microchip Technology TC1240
The TC1240 doubles an input voltage that can range from +2.5V to +4.0V, while the TC1240A doubles an input voltage that can range from +2.5V to +5.5V. The TC1240 and TC1240A have an active-high shutdown that limits the current consumption of the devices to less than 1 µA. Typical supply current is 180 µA for the TC1240 and 550 µA for the TC1240A.| Part No. | TC1240 |
|---|---|
| Datasheet | TC1240 Download |
| Manufacturer |  Microchip Technology |
| Description | Positive Doubling Charge Pumps |
| Buy | Stock & Price |
FEATURES
● Charge Pumps in 6-Pin SOT-23A Package● >99% Typical Voltage Conversion Efficiency
● Voltage Doubling
● Input Voltage Range, TC1240: +2.5V to +4.0V, TC1240A: +2.5V to +5.5V
● Low Output Resistance, TC1240: 17 (Typical) TC1240A: 12 (Typical)
● Only Two External Capacitors Required
● Low Supply Current, TC1240: 180 µA (Typical) TC1240A: 550 µA (Typical)
● Power-Saving Shutdown Mode (1 µA Maximum)
● Shutdown Input Fully Compatible with 1.8V Logic Systems
APPLICATIONS
● Cellular Phones● Pagers
● PDAs, Portable Data Loggers
● Battery Powered Devices
● Handheld Instruments Package Type 6-Pin SOT-23A C+ VOUT SHDN 6 54 TC1240ECH TC1240AECH 123 VIN GND C- NOTE: 6-Pin SOT-23A is equivalent to the EIAJ (SC-74A)
GENERAL DESCRIPTION
The TC1240/TC1240A is a doubling CMOS charge pump voltage converter in a small 6-Pin SOT-23A package. Conversion efficiency is typically >99%. Internal oscillator frequency is 160 kHz for both devices. External component requirement is only two capacitors for standard voltage doubler applications.
