LTC1929, PolyPhase Surface Mount Power Supply Meets AMD Athlon Processor Requirements with No Heat Sink

Reference Design using part LTC1929 by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

For End Products

  • Desktops and Servers
  • Distributed Control System

Description

  • AMD Athlon Processor Power Supply circuit. The design is quite straightforward: there are essentially two identical synchronous buck regulators connected in parallel. The controller drives them 180 out of phase. The LTC1929 has large gate drivers (approximately 1.5W) so it can drive large MOSFETs efficiently

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    5 V
  • Output Voltage
    1.6 V
  • Output Current
    40 A
  • Efficiency
    92 %
  • Topology
    Buck

Featured Parts (8)

Featured Parts
Part Number Manufacturer Type Description
LTC1929CG Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP Buy
LTC1929CG#PBF Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP Tube Buy
LTC1929IG#TR (CUT T&R) Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP T/R Buy
LTC1929IG#TR Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP T/R Buy
LTC1929IG#TRPBF Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP T/R Buy
LTC1929CG#TRPBF Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP T/R Buy
LTC1929IG#PBF Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP Tube Buy
LTC1929IG Analog Devices PWM and Resonant Controllers Current Mode PWM Controller 3A 300kHz 28-Pin SSOP Buy

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