1 Features

• Fixed-frequency, peak current mode (PCM) control

• Small form factor 6.4mm x 7.0mm x 2.4mm,

overmolded BGA power module

• Two independent synchronous buck outputs

• Supports 2-phase stackability for higher output

current

• High-efficiency, integrated MOSFETs, inductor, and

basic passives.

• 4V to 17V input voltage range

• 0.6V to 11V output voltage range

• Selectable internal or external compensation

• Continuously adjustable switching frequency from

400kHz to 2.2MHz

• Synchronizable to an external clock

• 0.6V, ±0.75% voltage reference accuracy over the

full temperature range

• Sequencing features

– Enable with adjustable input UVLO

– Power-good output monitor

– Output discharge

– Monotonic start-up into prebiased outputs

– Adjustable soft-start time with external SS pin

• Output overvoltage (OV), undervoltage (UV),

overcurrent (OC), and thermal shutdown protection

• Analog temperature output on the MSEL pin

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

• Create a custom design using TPSM8D7x20 with

the WEBENCH® Power Designer

2 Applications

• Test and measurement, aerospace

• Medical and healthcare

• FPGA, ASIC, and DSP I/O voltage

3 Description

The TPSM8D7x20 is a power-dense dual-channel

buck power module designed to provide efficient and

reliable power conversion for a wide output voltage

range from 0.6V to 11V. The module integrates

MOSFETs, inductor, and select capacitors to reduce

board space and layout complexity. The module

can be configured into both multiphase and multioutput

rails by supporting 2-phase stackability with

interleaved phases. Under steady-state conditions the

module operates in FCCM with a fixed-frequency that

is resistor adjustable from 400kHz to 2.2MHz and

synchronizable to an external clock.

TPSM8D7x20 module employs current mode control

with internal and external compensation. Sequencing

requirements are easily met with the external softstart,

active output discharge, adjustable EN, and

power-good features. A full suite of protection features

(output OV and UV, input UVLO, TSD, OC) are also

included for robustness.