TPS6286A06D中文资料德州仪器数据手册PDF规格书

1 Features

• 2.4V to 5.5V input voltage range

• 8mΩ and 8mΩ internal power MOSFETs

• 5.1μA operating quiescent current

• Multisource with other industry standard devices

• 1.2MHz switching frequency

• 100% duty cycle mode

• 0.7% output voltage accuracy

• Forced PWM or power save mode

• DCS-Control topology (constant on-time)

• Output voltage:

– Adjustable from 0.6V to Vin (with external FB

divider)

– Fixed (by external resistor) from 0.4V to 1.6V

• Output voltage discharge

• Hiccup short-circuit protection

• Power-good indicator with internal pull-up

• Thermal shutdown

• Adjustable soft start

• –40°C to 125°C operating temperature range

• Also available as 8A and 10A versions without I2C

interface (TPS6286A08, TPS6286A10) and with

I2C interface (TPS6286B08 and TPS6286B10)

2 Applications

• WLAN/Wi-Fi access point

• IP network cameras

• Machine vision cameras

• Core supply for FPGAs, CPUs, ASICs, and DSPs

3 Description

The TPS6286A06D device is a high-frequency,

synchronous, step-down converter which provides

an efficient, flexible, and high power-density design.

At medium to heavy loads, the converter operates

in pulse width modulation (PWM) mode and

automatically enters power save mode operation at

light load to maintain high efficiency over the entire

load current range. The device can also be forced

in PWM mode operation to minimize output voltage

ripple. Together with the DCS-Control architecture,

excellent load transient performance and tight output

voltage accuracy is achieved. The device features

a Power-Good signal with internal pull-up resistor

to VIN (for external pull up resistor option, use

TPS6286A06) and an adjustable soft-start feature.

The device is able to operate in 100% mode. For

fault protection, the device incorporates a HICCUP

short-circuit protection as well as a thermal shutdown.