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TC1219

Microchip Technology
Part Number TC1219
Manufacturer Microchip Technology
Description Switched Capacitor Voltage Converters
Published Aug 31, 2005
Detailed Description Switched Capacitor Voltage Converters with Shutdown in SOT Packages Features • • • • • • • • • Charge Pumps in 6-Pin SOT...
Datasheet PDF File TC1219 PDF File

TC1219
TC1219

Overview
Switched Capacitor Voltage Converters with Shutdown in SOT Packages Features • • • • • • • • • 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.
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.
External component requirement is only two capacitors for standard voltage inverter applications.
With a few additional components a positive d...


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