Si power stages

Maximize power density, optimize efficency, and streamline designs

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Minimize solution size, maximize power density, optimize efficiency, and fortify system protection utilizing our advanced power stages devices. Integrate our smart power stages, featuring high-precision telemetry, with our scalable multiphase controllers for a streamlined multiphase DC/DC system solution. This integration eliminates redundant components, reduces switching losses, and elevates overall system reliability – all within an a compact footprint.

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Thermally optimized footprint power stages
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Industry-common footprint smart power stages

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Our MOSFET power stages increase system efficiency & simplify designs

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High efficiency

PowerStack™ packing technology eliminates parasitics and reduces switching losses, while a large ground leadframe provides excellent thermal performance.

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Enhanced diagnostic feedback

Cycle-by-cycle-accurate temperature-compensated bidirectional current sensing improves system monitoring and temperature. Additionally, fault monitoring improves system reliability.

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High integration

Integrated MOSFETs, drivers and current sensing provide a complete switching function that eliminates passive components, reducing solution size and simplifying printed circuit board layout.

Technical resources

Application note
Application note
Power loss calculation with CSI consideration for synchronous buck converters (Rev. A)
The synchronous buck converter is a widely used topology in low-voltage, high-current applications. Low-power loss and highly efficient synchronous buck converters are in great demand for advanced microprocessors of the future.
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Video
Video
An Introduction to Multiphase Buck Regulators
In this video we discuss what a multi-phase buck regulator is exactly, what applications they're suited for, and some of the challenges associated with implementing them.
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Video
PowerStack™ Packaging Technology Overview
Gain a deeper understanding into the construction of our smart power stages and how packaging can enhance circuit performance.

Discover featured applications

Data center & enterprise computing
Shrink overall solution size, improve transient response and output voltage ripple, optimize efficiency, and strengthen system protection with our MOSFET power stages
Wired networking
Enable power solutions beyond 1,000 A, improve transient response and output voltage ripple, optimize efficiency, and strengthen system protection with MOSFET power stages
Wireless infrastructure
Enable input voltages as high as 16 V, improve transient response and output voltage ripple, and strengthen system protections with MOSFET power stages

Shrink overall solution size, improve transient response and output voltage ripple, optimize efficiency, and strengthen system protection with our MOSFET power stages

NexFET™ power stages paired with multiphase controllers help reduce switching losses and improve system efficiency and reliability.

Benefits:

  • PowerStack™ packaging technology eliminates parasitics, while a large ground leadframe provides excellent thermal performance.
  • Cycle-by-cycle accurate temperature-compensated bidirectional current sensing improves system monitoring. Fault monitoring improves system reliability.
  • Integrated MOSFETs, drivers and current sensors provide switching functionality that removes passive components, simplifying printed circuit board layout.

Featured resources

PRODUCTS
  • CSD95410RRB – 90-A peak continuous synchronous buck NexFET™ smart power stage
  • CSD95420RCB – 50-A peak continuous synchronous buck NexFET™ smart power stage
  • CSD95411 – 65-A peak continuous current synchronous buck NexFET™ power stage
TECHNICAL RESOURCES

Enable power solutions beyond 1,000 A, improve transient response and output voltage ripple, optimize efficiency, and strengthen system protection with MOSFET power stages

NexFET™ power stages paired with multiphase controllers help reduce switching losses and improve system efficiency and reliability.

Benefits:

  • Active current-sharing phase-doubling power-stage technology ensures accurate current sharing among stacked power stages. 
  • The CSD95430 enables high-power applications by easily scaling your power solution. 
  • PowerStack™ packaging technology eliminates parasitics, while a large ground leadframe provides excellent thermal performance.

Featured resources

PRODUCTS
  • CSD95430 – 90-A peak continuous-current synchronous-buck NexFET™ smart power stage
  • CSD95410RRB – 90-A peak continuous synchronous buck NexFET™ smart power stage
  • CSD95420RCB – 50-A peak continuous synchronous buck NexFET™ smart power stage

Enable input voltages as high as 16 V, improve transient response and output voltage ripple, and strengthen system protections with MOSFET power stages

NexFET™ power stages paired with multiphase controllers help reduce switching losses and improve system efficiency and reliability.

Benefits:

  • 25-V FET technology enables an input-voltage range as high as 16 V.
  • PowerStack™ packaging technology eliminates parasitics, while a large ground leadframe provides excellent thermal performance.
  • Cycle-by-cycle accurate temperature-compensated bidirectional current sensing improves system monitoring. Fault monitoring improves system reliability.

Featured resources

PRODUCTS
  • CSD96415 – 80-A peak continuous current synchronous buck NexFET™ power stage
  • CSD96416 – 50-A peak continuous current synchronous buck NexFET™ smart power stage
  • CSD95410RRB – 90-A peak continuous synchronous buck NexFET™ smart power stage

Design & development resources

Evaluation board
Dual-channel (6+2/5+3) evaluation module for D-CAP+™ step-down controller with PMBus interface

The TPS53681EVM evaluation module allows users to assess the operating characteristics of the TPS53681 controller with the CSD95490 smart power stages in a low voltage, high current, step-down point of load (POL) application with the configuration, control and monitoring functionality of the (...)

Evaluation board
TPSM831D31, 8V to 14V Input, Dual Output, 120A + 40A PMBus Power Module Evaluation Module
The TPSM831D31 evaluation board is configured to evaluate the operation of the TPSM831D31 power module for current up to 120 A for output A and 40 A for output B. The input voltage range is 8 V to 14 V. The output voltage range for both output A and output B is 0.25 V to 1.52 V. The evaluation (...)
Evaluation board
Dual-channel (12+0, 11+1 or 10+2 phases), D-CAP+ step-down, DC-DC analog with PMBus interface EVM

The TPS536C7EVM evaluation module (EVM) allows users to evaluate the TPS536C7 controller.

The controller is dual-channel (12 + 0, 11 + 1 or 10 + 2 phases), D-CAP+™ synchronous buck driverless control with PMBus Interface. The device operates using a voltage supply between 4.5 V and 17 V. The (...)

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