TI 推出高边缘负载开关TPS27081A

The TPS27081A IC is a high side load switch that integrates a Power PFET and a Control NFET in a tiny package.

The TPS27081A features industry-standard ESD protection on all pins providing better ESD compatibility with other on-board components.

The TPS27081A level shifts ON/OFF logic signal to VIN levels and supports as low as 1.0V CPU or MCU logic to control higher voltage power supplies without requiring an external level-shifter.

Switching a large value output capacitor CL through a fast ON/OFF logic signal may result in an excessive inrush current. To control the load inrush current, connect a resistor R2. To further limit the inrush current add an external capacitor C1. To configure the TPS27081A to achieve a specific slew rate refer to the Application Information section.

A single pull-up resistor R1 is required in stand-by power switch applications that do not require inrush current control. In such applications connect the TPS27081A pin R2 to the system ground.

Features

Low ON Resistance, High Current PFET RDS = 32mΩ at VGS = –4.5V RDS = 44mΩ at VGS = –3.0V RDS = 82mΩ at VGS = –1.8V RDS = 93mΩ at VGS = –1.5V RDS = 155mΩ at VGS = –1.2V Adjustable Turn-ON and Turn-OFF Slew Rate Control Through External R1, R2, and C1 Supports a Wide Range of 1.2V up to 8V Supply Inputs Integrated NMOS for PFET Control NMOS ON/OFF Supports a Wide Range of 1.0V up to 8V Control Logic Interface Full ESD Protection (All Pins) HBM 2kV, CDM 500V Ultra Low Leakage Current in Stand-by (Typ 100nA) Available in Tiny 6-pin Packages 2.9mm × 1.6mm × 0.75mm Thin SOT-23 (DDC)