Product Summary

The TPS6755IDRG4 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. An enable input is provided to shut down the inverter when an output voltage is not needed. The typical supply current of the TPS6755IDRG4 is 1.9 mA at no-load and is further reduced to 1-mA when the enable input is low. The TPS6755IDRG4 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-W MOSFET. Soft start of the TPS6755IDRG4 is accomplished with the addition of one small capacitor at SS. A 1.22-V reference is available for external loads up to 125 mA.

Parametrics

TPS6755IDRG4 absolute maximum ratings: (1)Peak switch current: 2 A; (2)Reference current: 2.5 mA; (3)Continuous total power dissipation: See Dissipation Rating Table; (4)Operating free-air temperture range, TA: –40℃ to 85℃; (5)Storage temperature range, Tstg: –65℃ to 150℃; (6)Lead temperature 1,6mm (1/16 inch) from case for 10 s: 260℃.

Features

TPS6755IDRG4 features: (1)1-W Output (VCC 4.5 V); (2)2.7-V to 9-V Input Operating Range; (3)78% Typical Efficiency; (4)160-kHz Fixed-Frequency Current-Mode PWM Controller; (5)EN Input Inhibits Operation and Reduces Supply Current to 1 mA; (6)Output Voltage Limited to M VOM 3 12 V– VCC; (7)Soft Start; (8)8-Pin SOIC and DIP Packages; (9)–40℃ to 85℃ Free-Air Temperature Range; (10)Pin-for-Pin Compatible with MAX755.

Diagrams

TPS6755IDRG4 functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
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