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MAXREFDES1202: Dual-Phase Buck Converter with Inductor DCR Current Sensing Using the MAX17558

MAXREFDES1202

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Description

The MAXREFDES1202 is a dual-phase, buck converter reference design developed using the MAX17558, MAX15019A, and MAX17552. This reference design is rated to operate over a wide input voltage range from 15V to 55V. The design can deliver an output power of 360W at 12V.

Features

  • Very High Efficiency > 95% at Full Load
  • Very Low Line Regulation < 0.1% and Very Low Load Regulation < 0.25%
  • Inductor DCR Current Sensing
  • Output-Voltage Ripple < 0.5% at VIN (nom)
  • Overshoot < 3% for 50% Step Load

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Designed, Built, Tested

Board pictured here has been fully assembled and tested. Not available for sale.

 

Schematic

PCB Layout

BOM

Test Results

Parametrics

Input Type Vin(Min) Vin(Max) Iout(Max) Single/Multiple Output Vout(V) Pout(W) Isolated/Non-Isolated Topology
DC 15 55 30 - 12 360 Non-Isolated Synchronous Buck

Parametrics

Input Type DC
Vin(Min) 15
Vin(Max) 55
Iout(Max) 30
Single/Multiple Output -
Vout(V) 12
Pout(W) 360
Isolated/Non-Isolated Non-Isolated
Topology Synchronous Buck

Maxim Devices (2)

Part Number Name Product Family Order Design kits and evaluation modules
MAX17558 60V, Dual-Output, Synchronous Step-Down Controller Switching Regulator - Switching Regulators Buy Now Design Kits
MAX17552 60V, 100mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current Switching Regulator - Switching Regulators Buy Now Design Kits

Maxim Devices (2)

Part Number Product Family
Switching Regulator - Switching Regulators
60V, Dual-Output, Synchronous Step-Down Controller
Switching Regulator - Switching Regulators
60V, 100mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22μA No-Load Supply Current

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