Product details

VGS (V) 10 VDS (V) 30 Power loss (W) 2.8 Ploss current (A) 25 ID - continuous drain current at Ta=25degC (A) 45 Operating temperature range (C) -55 to 150 Features Power supply Duty cycle (%) Low
VGS (V) 10 VDS (V) 30 Power loss (W) 2.8 Ploss current (A) 25 ID - continuous drain current at Ta=25degC (A) 45 Operating temperature range (C) -55 to 150 Features Power supply Duty cycle (%) Low
  • Half-Bridge Power Block
  • 92.5% System Efficiency at 25 A
  • Up to 45-A Operation
  • High-Frequency Operation (Up to 1.5 MHz)
  • High-Density SON 5-mm × 6-mm Footprint
  • Optimized for 5-V Gate Drive
  • Low Switching Losses
  • Ultralow Inductance Package
  • RoHS Compliant
  • Halogen Free
  • Pb-Free Terminal Plating
  • Half-Bridge Power Block
  • 92.5% System Efficiency at 25 A
  • Up to 45-A Operation
  • High-Frequency Operation (Up to 1.5 MHz)
  • High-Density SON 5-mm × 6-mm Footprint
  • Optimized for 5-V Gate Drive
  • Low Switching Losses
  • Ultralow Inductance Package
  • RoHS Compliant
  • Halogen Free
  • Pb-Free Terminal Plating

The CSD87355Q5D NexFET™ power block is an optimized design for synchronous buck applications offering high-current, high-efficiency, and high-frequency capability in a small 5-mm × 6-mm outline. Optimized for 5-V gate drive applications, this product offers a flexible solution capable of offering a high-density power supply when paired with any 5-V gate drive from an external controller/driver.

The CSD87355Q5D NexFET™ power block is an optimized design for synchronous buck applications offering high-current, high-efficiency, and high-frequency capability in a small 5-mm × 6-mm outline. Optimized for 5-V gate drive applications, this product offers a flexible solution capable of offering a high-density power supply when paired with any 5-V gate drive from an external controller/driver.

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Technical documentation

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Type Title Date
* Data sheet CSD87355Q5D Synchronous Buck NexFET Power Block datasheet (Rev. A) PDF | HTML 19 Sep 2017
Application note MOSFET Support and Training Tools (Rev. A) PDF | HTML 04 Nov 2022
Application note Tips for Successfully Paralleling Power MOSFETs PDF | HTML 31 May 2022
Technical article How to choose the right power MOSFET or power block package for your application 29 Oct 2019
Technical article Discrete FETs vs. power blocks - how to choose the right SOA for your design 06 Jun 2019
Technical article Understanding the benefits of “lead-free” power MOSFETs 08 Feb 2019
Application note QFN and SON PCB Attachment (Rev. B) PDF | HTML 24 Aug 2018
EVM User's guide CSD87355Q5DEVM-820 User's Guide 06 Jun 2017
Technical article The flexibility of advanced controllers and NexFET™ Power Blocks in high-power POL applications 03 Feb 2017
Application note Semiconductor and IC Package Thermal Metrics (Rev. C) PDF | HTML 19 Apr 2016
Application note Ringing Reduction Techniques for NexFET High Performance MOSFETs 16 Nov 2011
Application note PowerStack™ Packaging Technology Overview 18 Jul 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

CSD87355Q5DEVM-820 — CSD87355Q5D Synchronous Step-Down Converter Evaluation Module

The CSD87355Q5DEVM-820 evaluation module (EVM) is a synchronous buck converter featuring TI's NexFET PowerBlock technology to provide a high current, ultra-high density power supply solution. The EVM provides a 1.2V output at 25A from a 12V input bus at over 92% efficiency.
User guide: PDF
Not available on TI.com
Simulation model

CSD87355Q5D Unencrypted PSpice Model (Rev. A)

SLPM174A.ZIP (3 KB) - PSpice Model
Calculation tool

SYNC-BOOST-FET-LOSS-CALC — Power loss calculation tool for synchronous boost converter

MOSFET power loss calculator for synchronous boost converter applications.
Calculation tool

SYNC-BUCK-FET-LOSS-CALC — MOSFET power loss calculator for synchronous buck converter applications

Quickly trade off size, cost and performance to select the optimal MOSFET based on application conditions.
Reference designs

TIDA-050057 — Power solution for Alder Lake and Raptor Lake VCCIN_AUX rail in PC applications reference design

This power-supply reference design supports VCCIN_AUX rail in Intel® Alder Lake and Raptor Lake platform. Using TPS51215A controller combined with an operational amplifier could support the control functions including VID control, load line (LL) and current monitor (IMON). The position for test (...)
Design guide: PDF
Reference designs

TIDA-050024 — Envelope-tracking power supply reference design for mid-power audio power amplifier application

This reference design delivers an envelope-tracking power supply circuit for mid-power audio power amplifier (PA) applications with TPS43061 boost controller. By adding an audio envelope signal to the FB pin, the boost converter's output voltage can change in accordance with the envelope of the (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
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