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To support the evolution and expansion of Cloud services, the Internet of Things and mobile apps, the demand for data centers is growing exponentially with more powerful CPUs and extended memory banks making efficiency and power density a daunting challenge along with enhanced reliability.

In a typical architecture, a 48V DC rail is generated from the AC-DC power supply unit that will then be converted to provide the number of DC rails needed to supply the variety of loads and circuits in the server. This conversion must meet stringent efficiency targets requiring innovative architectures like those developed by the Power Stamp Alliance (PSA) for direct conversion from the 48V rail.

We offer a range of high-efficiency DC-DC conversion solutions including an isolated, single-stage direct 48 V to the Point-of-Load (PoL) resonant, conversion solution for CPUs and DDR memories based on the Power Stamp Alliance (PSA) product footprint and compliant with Intel VR13 and VR12.5 specifications.

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Technical Documentation

    • Description Version Size Action
      AN1768
      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES
      1.1
      46.82 KB
      PDF
      AN2025
      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION
      1.1
      147.59 KB
      PDF
      AN604
      Calculation of conduction losses in a power rectifier
      3.2
      137.74 KB
      PDF
      AN4021
      Calculation of reverse losses in a power diode
      1.0
      120.47 KB
      PDF
      AN4381
      Current sharing in parallel diodes
      1.0
      449.12 KB
      PDF
      AN1453
      NEW FAMILY OF 150V POWER SCHOTTKY
      1.1
      131.48 KB
      PDF
      AN5046
      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages
      4.0
      4.82 MB
      PDF
      AN5088
      Rectifiers thermal management, handling and mounting recommendations
      2.0
      2.32 MB
      PDF
      AN533
      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting
      3.6
      217.19 KB
      PDF
      AN443
      SERIES OPERATION ON FAST RECTIFIERS
      2.1
      202.48 KB
      PDF
      AN1542
      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION
      1.1
      57.47 KB
      PDF
      AN869
      Tj max limit of Schottky diodes
      2.2
      60.9 KB
      PDF
      AN1768

      ADMISSIBLE AVALANCHE POWER OF SCHOTTKY DIODES

      AN2025

      CONVERTER IMPROVEMENT USING SCHOTTKY RECTIFIER AVALANCHE SPECIFICATION

      AN604

      Calculation of conduction losses in a power rectifier

      AN4021

      Calculation of reverse losses in a power diode

      AN4381

      Current sharing in parallel diodes

      AN1453

      NEW FAMILY OF 150V POWER SCHOTTKY

      AN5046

      Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages

      AN5088

      Rectifiers thermal management, handling and mounting recommendations

      AN533

      SCRs, TRIACs, and AC switches, thermal management precautions for handling and mounting

      AN443

      SERIES OPERATION ON FAST RECTIFIERS

      AN1542

      THE THERMAL RUNAWAY LAW IN SCHOTTKY USED IN OR-ING APPLICATION

      AN869

      Tj max limit of Schottky diodes

Presentations & Training Material

    • Description Version Size Action
      ST 48V Conversion Solutions Overview about PSA and ST Products 2.0
      1.93 MB
      PDF

      ST 48V Conversion Solutions Overview about PSA and ST Products

Publications and Collaterals

    • Description Version Size Action
      Brochure Power management guide 10.2018
      4.42 MB
      PDF
      ST 48 V power conversion Turnkey solution for servers 03.2018
      6.02 MB
      PDF

      Brochure Power management guide

      ST 48 V power conversion Turnkey solution for servers

eDesignSuite

Converter

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

Power Management

Part number Description
LDK220 200 mA low quiescent current and low noise LDO
LDK320 200 mA low quiescent current and high PSRR voltage regulator
PSA60 Universal digital multicell controller with PMBus
ST1S40 3A DC step-down switching regulator
STEF01 8 V to 48 V fully programmable universal electronic fuse
STPDDC60 Universal digital multicell controller with PMBus
STPRDC01 Synchronous rectifier smart driver
STPRDC02 High performance high voltage
STRG02 Synchronous rectifier smart driver
STRG04 High performance high voltage full bridge driver
STRG06 Universal digital multicell controller with PMBus
Part number
200 mA low quiescent current and low noise LDO
200 mA low quiescent current and high PSRR voltage regulator
Universal digital multicell controller with PMBus
3A DC step-down switching regulator
8 V to 48 V fully programmable universal electronic fuse
Universal digital multicell controller with PMBus
Synchronous rectifier smart driver
High performance high voltage
Synchronous rectifier smart driver
High performance high voltage full bridge driver
Universal digital multicell controller with PMBus