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TC1142

Part Number	TC1142
Manufacturer	Microchip
Description	Inductorless -2x Boost/Buck Regulator
Published	Aug 21, 2005
Detailed Description	M Features • • • • • • TC1142 Package Type 8-Pin MSOP VOUT 1 C2– 2 C2+ 3 8 CCLK VIN C1+ GND Inductorless -2x Boost/Buc...
Datasheet	TC1142 PDF File

Overview

M Features • • • • • • TC1142 Package Type 8-Pin MSOP VOUT 1 C2– 2 C2+ 3 8 CCLK VIN C1+ GND Inductorless -2x Boost/Buck Regulator Input Range 2.
5V to 5.
5V Regulated Output Options from -3.
0 to -5.
0V Output Current 20mA (max) 200kHz Internal Oscillator Frequency External Synchronizing Clock Input Logic Level Shutdown - 1µA (max) Supply Current • Available in 8-Pin MSOP Package TC1142 7 6 5 C1– 4 Applications • Cellular Phones • Battery Powered/Portable Equipment General Description The TC1142 generates a regulated negative voltage from -3V to -5V at 20mA from an input of 2.
5V to 5.
5V, using only three external capacitors.
Other boost/buck switching regulators must use an inductor, whi...

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