Microchip Technology TC1219
the TC1219, 35kHz for the TC1220. When the shutdown pin is held at a logic low, the device goes into a very low power mode of operation, consuming less than 1µA of supply current. With a few additional components a positive doubler can also be built.| Part No. | TC1219 |
|---|---|
| Datasheet | TC1219 Download |
| Manufacturer |  Microchip Technology |
| Description | Switched Capacitor Voltage Converters |
| Buy | Stock & Price |
FEATURES
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● Charge Pumps in 6-Pin SOT-23A Package >95% Voltage Conversion Efficiency Voltage Inversion and/or Doubling Operates from +2.5V to +5.5V Up to 25mA Output Current Only Two External Capacitors Required Low Power Consumption Power-Saving Shutdown Mode TC1220 Compatible with 1.8V Logic Systems M TC1219/TC1220
GENERAL DESCRIPTION
The TC1219/TC1220 are CMOS “charge-pump” voltage converters in ultra-small 6-Pin SOT-23A packages. They invert and/or double an input voltage which can range from +2.5V to +5.5V. Conversion efficiency is typically >95%. Switching frequency is 12kHz for the TC1219, 35kHz for the TC1220. External component requirement is only two capacitors for standard voltage inverter applications. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Typical supply currents are 60µA (TC1219), 115µA (TC1220). All devices are available in 6-pin SOT-23A surface mount packages.APPLICATIONS
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● LCD Panel Bias Cellular Phones Pagers PDAs, Portable Dataloggers Battery-Powered Devices Functional Block Diagram Device Selection Table Part Number Package Osc.
