TPS60400DBV Datasheet PDF - TI

●Description

●The TPS6040x family of devices generates an unregulated negative output voltage from an input voltage ranging from 1.6 V to 5.5 V. The devices are typically supplied by a preregulated supply rail of 5 V or 3.3 V. Due to its wide input voltage range, two or three NiCd, NiMH, or alkaline battery cells, as well as one Li-Ion cell can also power them.

●Only three external 1-µF capacitors are required to build a complete DC-DC charge pump inverter. Assembled in a 5-pin SOT-23 package, the complete converter can be built on a 50-mm2 board area. Additional board area and component count reduction is achieved by replacing the Schottky diode that is typically needed for start-up into load by integrated circuitry.

●Features

●• Inverts Input Supply Voltage

●• Up to 60-mA Output Current

●• Only Three Small 1-µF Ceramic Capacitors Needed

●• Input Voltage Range From 1.6 V to 5.5 V

●• PowerSave-Mode for Improved Efficiency at Low Output Currents (TPS60400)

●• Device Quiescent Current Typical 65 µA

●• Integrated Active Schottky-Diode for Start-up Into Load

●• Small 5-Pin SOT-23 Package

●• Evaluation Module Available TPS60400EVM-178

●Applications

●• LCD Bias

●• GaAs Bias for RF Power Amps

●• Sensor Supply in Portable Instruments

●• Bipolar Amplifier Supply

●• Medical Instruments

●• Battery-Operated Equipment