Product details

VGS (V) 10 VDS (V) 30 Power loss (W) 1 Ploss current (A) 8 ID - continuous drain current at Ta=25degC (A) 15 Operating temperature range (C) -55 to 150 Features Power supply Duty cycle (%) Low
VGS (V) 10 VDS (V) 30 Power loss (W) 1 Ploss current (A) 8 ID - continuous drain current at Ta=25degC (A) 15 Operating temperature range (C) -55 to 150 Features Power supply Duty cycle (%) Low
PTAB (MPC) 5 8 mm² 3 x 2.5
  • Half-Bridge Power Block
  • 90% System Efficiency at 10 A
  • Up to 15 A Operation
  • High Density – 3 × 2.5 mm LGA Footprint
  • Double Side Cooling Capability
  • Ultra-Low Profile – 0.48 mm Max
  • Optimized for 5 V Gate Drive
  • Low Switching Losses
  • Low Inductance Package
  • RoHS Compliant
  • Halogen Free
  • Pb Free
  • Half-Bridge Power Block
  • 90% System Efficiency at 10 A
  • Up to 15 A Operation
  • High Density – 3 × 2.5 mm LGA Footprint
  • Double Side Cooling Capability
  • Ultra-Low Profile – 0.48 mm Max
  • Optimized for 5 V Gate Drive
  • Low Switching Losses
  • Low Inductance Package
  • RoHS Compliant
  • Halogen Free
  • Pb Free

The CSD87381P NexFET™ power block II is a highly optimized design for synchronous buck applications offering high current and high efficiency capability in a small 3 mm × 2.5 mm outline. Optimized for 5 V gate drive applications, this product offers an efficient and flexible solution capable of providing a high density power supply when paired with any 5 V gate driver from an external controller/driver.

The CSD87381P NexFET™ power block II is a highly optimized design for synchronous buck applications offering high current and high efficiency capability in a small 3 mm × 2.5 mm outline. Optimized for 5 V gate drive applications, this product offers an efficient and flexible solution capable of providing a high density power supply when paired with any 5 V gate driver from an external controller/driver.

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Technical documentation

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Type Title Date
* Data sheet CSD87381P Synchronous Buck NexFET Power Block II datasheet (Rev. F) PDF | HTML 24 Feb 2015
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 Semiconductor and IC Package Thermal Metrics (Rev. C) PDF | HTML 19 Apr 2016
Technical article When to use load switches in place of discrete MOSFETs 03 Feb 2016
White paper Power management integrated buck controllers for distant point-of-load apps 14 Aug 2015
User guide CSD87381PEVM-603 User's Guide (Rev. A) 06 Feb 2014
Design guide Design Summary Power Block II 15 Apr 2013
Analog Design Journal Controlling switch-node ringing in synchronous buck converters 26 Apr 2012
Application note Ringing Reduction Techniques for NexFET High Performance MOSFETs 16 Nov 2011

Design & development

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

Evaluation board

CSD87381PEVM-603 — Synchronous Buck Converter with Power Block II CSD87381P

CSD87381PEVM-603 implements a step-down synchronous buck converter using the NextFETTM Power Block II CSD87381P together with controller TPS51219RTE from Texas Instruments. CSD87381P NexFET™ Power Block II is a highly optimized design for synchronous buck applications offering high current (...)

User guide: PDF
Not available on TI.com
Simulation model

CSD87381P Unencrypted PSpice Model Package (Rev. B)

SLPM069B.ZIP (5 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

PMP22165 — Power for Xilinx Versal adaptive compute acceleration platform (ACAP) reference design

This reference design addresses Xilinx Versal adaptive compute acceleration platform (ACAP) requirements and consists of a power management integrated circuit (PMIC) for system rails plus a multiphase controller and power stages to support higher current processor loads.  On-board dynamic (...)
Test report: PDF
Schematic: PDF
Reference designs

TIDA-01393 — Power reference design for Xilinx® Zynq® UltraScale+™ MPSoC applications

This reference design is a configurable power solution designed to handle the entire Xilinx® Zynq® UltraScale+ (ZU+) family of MPSoC devices across various use cases.

The various versions of the TPS65086x PMIC allow this design to power devices from the basic ZU2CG device with a dual-core Arm® (...)

Design guide: PDF
Schematic: PDF
Reference designs

PMP21440 — Comparison: 0.8V/8W GaN vs Silicon Power Supply Reference Design

This reference design provides customers with a comparison study on the usage of GaN vs SI in power supply designs. This specific design uses TPS40400 controller to drive CSD87381 for the silicon power supply and LMG1210 with EPC2111 for the GaN power supply to provide 0.8V/10A. This design (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP20084 — 0.9V/10A PMBus POL Power Reference Design

This reference design is a 3.3Vin to 0.9V @ 10A power supply in a small form-factor, cost-effective design. It uses the TPS40400 controller in conjunction with the CSD87381P (a high and low side FET IC). The TPS40400 features full PMBUS telemetry for enhanced monitoring and control. The (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP9128 — Small Form Factor Nvidia Tegra T40/T50 Proc Power for Automotive Infotainment Reference Design

This Nvidia Tegra™ T40/T50 Processor Power Automotive Infotainment reference design powers the Nvidia Tegra T40/T50 Core Processor using the TPS51632Q1 and TPS51604Q1 Automotive Qualified Devices. It is targeted towards OEM or After-Market Infotainment Designs, including Rear Seat Entertainment.
Test report: PDF
Schematic: PDF
Reference designs

PMP8962 — 12V input, Compact Dual 5V/5.5A Point-of-Load using NexFET Power Block II Reference Design

PMP8962 is a compact dual 5.5A POL solution in 0.63" by 0.74" size. It showcases CSD87381P power block II with high efficiency and excellent thermal performnce. It has programmable frequency, soft-start, external compensation, adjustable current limit and OCP/OVP/OTP features. It is suitable for (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP9559 — 12Vin Compact Dual 5V/5.5A Point-of-Load with PMBus using NexFET Power Block II Reference Design

The PMP9559 reference design is a compact dual 5.5A POL solution with PMBus in 0.65" by 0.90" size. It showcases CSD87381P power block II with high efficiency and excellent thermal performnce. It has programmable frequency, soft-start, external compensation, adjustable current limit and OCP/OVP/OTP (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP9548A — Skylake Volume Power Reference Design

PMP9548A reference design provides a complete Skylake platform system power featuring the TPS650830 6 channel PMIC.
Schematic: PDF
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