Product details


VGS (V) 10 VDS (V) 25 Power loss (W) 1.9 Ploss current (A) 15 ID - continuous drain current at Ta=25degC (A) 20 Operating temperature range (C) -55 to 150 Features Power supply Duty cycle (%) Low open-in-new Find other Power blocks


  • Half-Bridge Power Block
  • 90% System Efficiency at 15 A
  • Up to 20 A Operation
  • High Frequency Operation (Up To 1.5 MHz)
  • High Density – SON 3.3 mm × 3.3 mm Footprint
  • Optimized for 5 V Gate Drive
  • Low Switching Losses
  • Ultra Low Inductance Package
  • RoHS Compliant
  • Halogen Free
  • Pb-Free Terminal Plating
    • Synchronous Buck Converters
      • High Frequency Applications
      • High Current, Low Duty Cycle Applications
    • Multiphase Synchronous Buck Converters
    • POL DC-DC Converters
    • IMVP, VRM, and VRD Applications

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The CSD86330Q3D NexFET™ power block is an optimized design for synchronous buck applications offering high current, high efficiency, and high frequency capability in a small 3.3 mm × 3.3 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 CSD86330Q3D Synchronous Buck NexFET Power Block datasheet (Rev. D) May 04, 2015
Technical article How to choose the right power MOSFET or power block package for your application Oct. 29, 2019
Technical article Discrete FETs vs. power blocks - how to choose the right SOA for your design Jun. 06, 2019
Technical article Understanding the benefits of “lead-free” power MOSFETs Feb. 08, 2019
Application note QFN and SON PCB Attachment (Rev. B) Aug. 24, 2018
Technical article How to Select a MOSFET – Selection Tool Feb. 07, 2018
Application note Synchronous rectification boosts efficiency by reducing power loss Apr. 16, 2013
Application note Ringing Reduction Techniques for NexFET High Performance MOSFETs Nov. 16, 2011
Application note PowerStack™ Packaging Technology Overview Jul. 18, 2011
User guide Using the CSD86330EVM-717, Synchronous Buck NexFET Power Block Dec. 16, 2010

Design & development

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

Hardware development

document-generic User guide
The CSD86330EVM-717 evaluation module (EVM) uses the CSD86330. The CSD86330 power block is an optimized design for synchronous buck applications offering high-current, high-efficiency, and high-frequency capability in a small 3.3-mm x 3.3-mm outline. CSD86330EVM-717 also uses TPS53219 as a small (...)
document-generic User guide
The TPS40322EVM-679 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS40322 Dual Output or Two-phase Synchronous Buck Controller. The EVM is designed to use a regulated 8.0Vdc to 15.0Vdc bus to produce two high current, regulated outputs, one at 1.2Vdc and the (...)
  • 8V to 15V input range
  • 1.2V and 1.8V fixed outputs
  • 10A DC steady state current per output
  • 500kHz switching frequency
  • Output sequence capability
  • Inductor DCR current sensing
  • Voltage Mode Feedback Control with Input Feedforward

Design tools & simulation

SLPM020A.ZIP (4 KB) - PSpice Model
SLPM036.TSM (15 KB) - TINA-TI Spice Model
MOSFET power loss calculator for synchronous buck converter applications
SYNC-BUCK-FET-LOSS-CALC — MOSFET power loss calculator for synchronous buck converter applications
  • Calculates power loss for TI MOSFETs

Reference designs

Power Solution for Xilinx 7-Series MGT with 5V input voltage (1.8V @ 2.6A)
PMP6577 — PMP6577 is a complete power solution for the Xilinx 7-series GTX / GTH transceivers when mated to Xilinx MGT characterization boards. The AVCC at 1V up to 12A, AVTT at 1.2V up to 8A and AVCCAUX 1.8V at up to 2.6A (powered off 5V) are provided. For each output a TPS40400 controller with a dual NexFET (...)
Dual Buck with 5V @ 7A and 3.3V @ 4A Reference Design
PMP8703 This design is a dual buck for 12V input voltage which provides 5.0V @ 7.0A and 3.3V @ 4.0A. TIs CSD86330Q3D Power Blocks enable a high efficiency even at high switching frequencies.
Design files
Power Reference Design for Xilinx Ultrascale Kintex FPGA Multi-Gigabit Transciever (MGT) with PMBus
PMP9463 The PMP9463 reference design provides all the power supply rails necessary to power the multi-gigabit transcievers (MGT) in Xilinx's Ultrascale™ Kintex® FPGAs.  It utilizes a PMBus interface for current and voltage monitoring and meets Xilinx's low output voltage ripple (...)
document-generic Schematic document-generic User guide
10A Step-Down Converter for Server Add-On Card ASIC Core Power Reference Design
PMP5471 A 9V-12.6V input, 12W, 90% efficient step-down converter for Server add-on card ASIC core voltage regulation using the TPS53219 PWM Controller and CSD86339Q3D 3x3 Power Block in 264mm2 of total power supply area.
document-generic Schematic document-generic User guide
TPS40400 SmartReflex Step-Down Regulator with PMBus for DM816x & C6A816x Processors Reference Design
PMP6717 — PMP6717 is a single-phase, SmartReflex, switching regulator reference design for DM816x and C6A816x processors. This design features TPS40400 synchronous buck controller with PMBus with tracking and CSD86330Q3D synchronous buck NexFETTM Power Block MOSFET pair.
Synchronous buck converter 12V to 0.9V @7A
PMP5760 — This reference design generates a 0.9V/7.4A output from a 12V input using the TPS40192 synchronous buck controller. The low Rds and fast switching of the CSD86330Q3D provides over 86% efficiency.
Design files

CAD/CAE symbols

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Ordering & quality

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