45A Synchronous Buck NexFET™ Smart Power Stage

CSD95373BQ5M

ACTIVE

Product details

VDS (V) 20 Power loss (W) 2.6 Ploss current (A) 25 Configuration PowerStage ID - continuous drain current at Ta=25degC (A) 45 Package (mm) SON5x6 PowerStage Operating temperature range (C) -55 to 150
VDS (V) 20 Power loss (W) 2.6 Ploss current (A) 25 Configuration PowerStage ID - continuous drain current at Ta=25degC (A) 45 Package (mm) SON5x6 PowerStage Operating temperature range (C) -55 to 150
LSON-CLIP (DQP) 12 30 mm² 6 x 5
  • 45-A Continuous Operating Current Capability
  • 92.7% System Efficiency at 25 A
  • Low-Power Loss of 2.6 W at 25 A
  • High-Frequency Operation (up to 1.25 MHz)
  • Diode Emulation Mode With FCCM
  • Temperature Compensated Bi-Directional Current Sense
  • Analog Temperature Output (600 mV at 0°C)
  • Fault Monitoring
    • High-Side Short, Overcurrent, and Overtemperature Protection
  • 3.3-V and 5-V PWM Signal Compatible
  • Tri-State PWM Input
  • Integrated Bootstrap Diode
  • Optimized Dead Time for Shoot-Through Protection
  • High-Density SON 5-mm × 6-mm Footprint
  • Ultra-Low-Inductance Package
  • System Optimized PCB Footprint
  • RoHS Compliant – Lead-Free Terminal Plating
  • Halogen Free
  • 45-A Continuous Operating Current Capability
  • 92.7% System Efficiency at 25 A
  • Low-Power Loss of 2.6 W at 25 A
  • High-Frequency Operation (up to 1.25 MHz)
  • Diode Emulation Mode With FCCM
  • Temperature Compensated Bi-Directional Current Sense
  • Analog Temperature Output (600 mV at 0°C)
  • Fault Monitoring
    • High-Side Short, Overcurrent, and Overtemperature Protection
  • 3.3-V and 5-V PWM Signal Compatible
  • Tri-State PWM Input
  • Integrated Bootstrap Diode
  • Optimized Dead Time for Shoot-Through Protection
  • High-Density SON 5-mm × 6-mm Footprint
  • Ultra-Low-Inductance Package
  • System Optimized PCB Footprint
  • RoHS Compliant – Lead-Free Terminal Plating
  • Halogen Free

The CSD95373BQ5M NexFET™ smart power stage is a highly optimized design for use in a high-power, high-density synchronous buck converter. This product integrates the driver IC and power MOSFETs to complete the power stage switching function. This combination produces high-current, high-efficiency, and high-speed switching capability in a small 5-mm × 6-mm outline package. It also integrates the accurate current sensing and temperature sensing functionality to simplify system design and improve accuracy. In addition, the PCB footprint has been optimized to help reduce design time and simplify the completion of the overall system design.

The CSD95373BQ5M NexFET™ smart power stage is a highly optimized design for use in a high-power, high-density synchronous buck converter. This product integrates the driver IC and power MOSFETs to complete the power stage switching function. This combination produces high-current, high-efficiency, and high-speed switching capability in a small 5-mm × 6-mm outline package. It also integrates the accurate current sensing and temperature sensing functionality to simplify system design and improve accuracy. In addition, the PCB footprint has been optimized to help reduce design time and simplify the completion of the overall system design.

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Type Title Date
* Data sheet CSD95373BQ5M Synchronous Buck NexFET Smart Power Stage datasheet (Rev. A) 12 Jul 2017
Technical article Understanding the benefits of “lead-free” power MOSFETs 08 Feb 2019
Technical article When to use load switches in place of discrete MOSFETs 03 Feb 2016
Technical article 48V systems: Driving power MOSFETs efficiently and robustly 08 Oct 2015

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Reference designs

PMP10393 — High Density 600mV 200 A 5-6 Phase DC-DC Buck Converter with PMBus Interface Reference Design

Advanced DCAP+ control is used to provide the high speed dynamic control needed for CPU, Memory and ASIC applications. Up to six high current synchronous power stages provide the high currents and low losses needed for these applications. Multi-phase also allows output ripple cancellation and (...)
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