TPS6286B10中文资料德州仪器数据手册PDF规格书

1 Features

• DCS-Control topology for fast transient response

• 8mΩ and 8mΩ internal power MOSFETs

• 0.7% output voltage accuracy

• 5.1μA operating quiescent current

• 2.4V to 5.5V input voltage range

• 1.2MHz switching frequency

• FB version (TPS6286Axx) output voltage:

– Adjustable from 0.6V to Vin

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

• I2C version (TPS6286Axx), selection through

interface:

– Output voltage from 0.4V to 1.675V with 5mV

step size

– Power save mode or forced PWM mode

– Hiccup or latching short-circuit protection

– Output voltage ramp speed

• Forced PWM or power save mode

• Output voltage discharge

• 100% duty cycle mode

• Hiccup short-circuit protection

• Power-good indicator with window comparator

• Thermal shutdown

• Available in 2mm × 3mm QFN

• Adjustable Soft-start

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

• Create a custom design using the TPS6286Axx

and TPS6286Bxx with the WEBENCH® Power

Designer

2 Applications

• Core supply for FPGAs, CPUs, ASICs, or video

chipsets

• Machine vision cameras

• IP network cameras

• Solid-state drives

• Optical modules

3 Description

The TPS6286Axx and TPS6286Bxx devices are highfrequency,

synchronous step-down converters which

provide an efficient, flexible, and high power-density

design. At medium to heavy loads, the converters

operate in pulse width modulation (PWM) mode and

automatically enter power save mode operation at

light load to maintain high efficiency over the entire

load current range. The devices 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 devices feature

a Power-Good signal and an adjustable soft-start

feature. The devices are able to operate in 100%

mode. For fault protection, the devices incorporate a

HICCUP short-circuit protection as well as a thermal

shutdown.