TPS62A02NA中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? 2.5V to 5.5V input voltage range

? 0.6V to VIN adjustable output voltage range

? 180mΩ/120mΩ low RDSON switches (1A DRL)

? 100mΩ/67mΩ low RDSON switches (1A DDC, 2A)

? < 23μA quiescent current

? 1% feedback accuracy (0°C to 125°C)

? 100% mode operation

? 2.4MHz switching frequency

? Power save mode or PWM option available

? Power-good output pin (optional)

? Short-circuit protection (HICCUP)

? Internal soft start-up

? Active output discharge

? Thermal shutdown protection

? Pin-to-pin compatible with the TLV62585 (DRL)

? Pin-to-pin compatible with the TLV62569 (DDC)

2 Applications

? Set top box, TV applications

? IP network camera, Multi-function printer

? Wireless router, solid state drive

? Battery-powered applications

? General purpose point-of-load supply

3 Description

The TPS62A0x family of devices are synchronous

step-down buck DC/DC converters optimized for high

efficiency and compact design size. The devices

integrate switches capable of delivering an output

current up to 2A. At medium to heavy loads, the

devices operate in pulse width modulation (PWM)

mode with 2.4MHz switching frequency. At light load,

the devices automatically enter power save mode

(PSM) to maintain high efficiency over the entire load

current range. In shutdown, the current consumption

is minimal as well. The TPS62A0xA variants of this

device family operate in forced PWM across the

whole load current range.

The TPS62A0x devices provide an adjustable output

voltage through an external resistor divider. An

internal soft-start circuit limits the inrush current

during start-up. Other features like overcurrent

protection, thermal shutdown protection, and power

good (optional) are built-in. The devices are available

in a SOT563 and SOT23-6 package.