CSD86350Q5D Synchronous Buck NexFET Power Block

By Texas Instruments 282

CSD86350Q5D Synchronous Buck NexFET Power Block

Texas Instruments' CSD86350Q5D NexFET power block is an optimized design for synchronous buck applications that offers high current, high efficiency, and high frequency capabilities in a small 5 mm x 6 mm outline. Optimized for 5 V gate drive applications, this product provides a flexible solution capable of offering a high density power supply when paired with any 5 V gate drive from an external controller/driver.

Overview

Texas Instruments' synchronous MOSFET half bridge achieves greater than 90% efficiency at 25 A and in half the area of competitive power MOSFET devices. The CSD86350Q5D power block combines two asymmetric NexFET power MOSFETs in an advanced package that delivers high performance in low-voltage synchronous buck half-bridge applications, including servers, desktop and notebook PCs, base stations, switches, routers, and high-current point-of-load (POL) converters.

In addition to improving efficiency and power density, the NexFET power block can generate up to 40 A of current with a switching frequency of up to 1.5 MHz, which reduces solution size and cost. The optimized pinout and grounded lead frame significantly reduces development time and improves overall circuit performance. Furthermore, the NexFET Power Block can achieve comparable performance to other semiconductor technologies, such as GaN, but in a cost-effective manner.

Features
  • Half-bridge power block
  • 90% system efficiency at 25 A
  • Up to 40 A operation
  • High frequency operation (up to 1.5 MHz)
  • High density: SON 5 mm x 6 mm footprint
  • Optimized for 5 V gate drive
  • Low switching losses
  • Ultra low inductance package
  • RoHS compliant
  • Halogen free
  • Pb-free terminal plating
Applications
  • 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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