1 Features

• Up to 96% efficiency

• Excellent thermal performance

• 1% output voltage accuracy

• DCS-Control topology for fast transient response

• Designed for low EMI requirements

– MagPack technology shields inductor and IC

– No bond wire package

– Simplified layout through optimized pinout

• 2.4V to 5.5V input voltage range

• Same device part number provides:

– 0.6V to VIN adjustable output voltage

– 13 integrated fixed output voltage options

– Forced PWM or power save mode

• Power-good indicator with window comparator

• 2.4MHz switching frequency

• 4μA operating quiescent current

• Output voltage discharge

• 100% duty cycle mode

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

• QFN package with 0.5mm pitch:

– RDJ, RDM: 3.5mm × 4.0mm

– RCF (MagPack): 2.3mm × 3.0mm

• Small design size:

– RDJ, RDM: 35mm2 design size

– RCF (MagPack): 28mm2 design size

• Also available with I2C interface: TPSM82866C

2 Applications

• Core supply for FPGAs, CPUs, ASICs

• Optical modules

• Industrial transport

• Factory automation and control

• Aerospace and defense

3 Description

The TPSM8286xA device family consists of 4A and

6A step-down converter power modules designed

for small solution size and high efficiency. The

power modules integrate a synchronous step-down

converter and an inductor to simplify design, reduce

external components, and save PCB area. The

low-profile and compact solution is designed for

automated assembly by standard surface mount

equipment. Tight output voltage accuracy, even with

small output capacitors, is achieved though the

DCS-Control architecture and the excellent load

transient performance. At medium-to-heavy loads, the

converter operates in PWM mode and automatically

enters 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 for the smallest output voltage ripple.

The EN and PG pins, which support sequencing

configurations, bring a flexible system design. An

integrated soft start reduces the inrush current

required from the input supply. The RDJ package

supports thin designs with 1.4mm height.