• Product Introduction

TPS60400 

60mA charging pump voltage reverser with variable switching frequency

illustrate   The TPS6040x is a home that produces devices with a non-standard negative output voltage from an input range of 1.6 V to 5.5 voltage, and the device is usually preregulated by 5 V or 3.3 five, due to its wide input voltage range power rails, two or three NiCdm, NiMH or alkaline batteries, and a lithium-ion battery power supply they can also be used. With only three external 1-μF capacitors, a complete DC/DC charge pump inverter needs to be established. The package is assembled in a 5-pin SOT23 package, and the complete converter can be built in a 50 square millimeter board area. The additional board area and the reduction in the number of components are achieved by replacing Schottky diodes, which typically require the activation function of the integrated circuit load.   characteristic   Reverse the input voltage Up to 60 mA output current Only three small 1μF ceramic capacitors are needed The input voltage range is from 1.6 V to 5.5 V Power saving mode at low output current (TPS60400) for improved efficiency The typical quiescent current of the device is 65 microamps Startup function load with integrated active Schottky diode Small 5-pin SOT23 package The evaluation module can be TPS60400EVM - 178 apply LCD bias Bias of gallium arsenide RF power amplifiers Sensor power is in portable instruments Power supply for bipolar amplifiers Medical devices Battery-powered devices