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TPS6755 - ADJUSTABLE INVERTING DC/DC CONVERTER

Description

The TPS6755 is an adjustable inverting dc/dc converter capable of operating from inputs as low as 2.7 V.

The only external components required are an inductor, an output filter capacitor, an input filter capacitor, a reference filter capacitor, two resistors, and a Schottky rectifier.

Features

  • a 160-kHz current-mode pulse-width-modulation (PWM) controller with a p-channel MOSFET power switch. The gate drive uses the converter output to reduce the die area needed to realize the 0.4-Ω MOSFET. Soft start is accomplished with the addition of one small capacitor at SS. A 1.22-V reference is available for external loads up to 125 µA. The TPS6755 is attractive for board-level dc/dc conversion in computer peripherals and in battery-powered equipment requiring high efficiency and low supply cu.

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Full PDF Text Transcription

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TPS6755 ADJUSTABLE INVERTING DC/DC CONVERTER D 1-W Output (VCC ≥ 4.5 V) D 2.7-V to 9-V Input Operating Range D 78% Typical Efficiency D 160-kHz Fixed-Frequency Current-Mode PWM Controller D EN Input Inhibits Operation and Reduces Supply Current to 1 µA D Output Voltage Limited to  VO ≤ 12 V– VCC D Soft Start D 8-Pin SOIC and DIP Packages D – 40°C to 85°C Free-Air Temperature Range D Pin-for-Pin Compatible with MAX755 SLVS155A – NOVEMBER 1996 REVISED DECEMBER 1996 D OR P PACKAGE (TOP VIEW) EN 1 REF 2 SS 3 COMP 4 8 VCC 7 OUT 6 GND 5 FB description The TPS6755 is an adjustable inverting dc/dc converter capable of operating from inputs as low as 2.7 V.
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