1 Features

? ±0.8% output voltage accuracy

? Differential remote sensing

? Parallelable for multiphase operation

? Start-up output voltage and I2C addresses

selectable through VSETx pins:

– 0.4V to 0.775V in 25mV steps

– 0.8V to 1.55V in 50mV steps

? Output voltage I2C adjustable in 1.25mV steps

? Adjustable external compensation for wide output

capacitor range and optimized transient response

? Designed for low EMI requirements

– MagPack technology shields inductor and IC

– No bond wire package

– Internal input and output capacitors

– Simplified layout through parallel input path

– Optional synchronization to external clock or

spread-spectrum operation

? Optional droop compensation through I2C

? Power save mode or forced PWM operation

? Precise enable input threshold

? Power-good output with window comparator

? Active output discharge

? Excellent thermal performance

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

? 3.75mm × 8.0mm QFN package with 0.5mm pitch

? 66mm2 solution size

2 Applications

? FPGA, ASIC, and SoC digital core supply

? Optical networks

? Test and measurement equipment

? Sensors, imaging, and radar

3 Description

The TPSM8287Bxx is a family of pin-to-pin, stepdown,

DC/DC power modules with differential

remote sensing and I2C interface. The power

modules use TI's MagPack technology to integrate

a synchronous step-down converter, an inductor,

input and output capacitors to simplify design,

reduce external components and save PCB area.

The low-profile and compact design is designed for

assembly by standard surface mount equipment.

The TPSM8287Bxx family implements an enhanced

control scheme that supports fast transients. The

TPSM8287Bxx can operate in fixed-frequency or

power save mode. The remote sensing feature

optimizes voltage regulation at the point-of-load and

the device achieves ±0.8% DC voltage accuracy

over the entire temperature range. The devices can

operate in stacked, paralleled mode to deliver higher

output currents or to spread the power dissipation

across multiple devices. The I2C-compatible interface

offers several control, monitoring, and warning

features. The start-up voltage is selectable through

the VSETx pins to allow a power-up without an active

I2C communication.