MAXREFDES1054: Non-Isolated, Single-Output, Synchronous Buck, Step-Down, DC-DC Converter Using the MAX17506


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The MAX17506 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated high-side MOSFET operates over a 4.5V to 60V input. The converter can deliver up to 5A and generates output voltages from 0.9V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.4% over -40°C to +125°C. The MAX17506 uses peak current-mode control and can be operated in the pulse-width modulation (PWM), pulse-frequency modulation (PFM), and discontinuous conduction mode (DCM) control schemes..


  • Wide 4.5V to 60V Input
  • Adjustable 0.9V to 0.9 x VIN Output
  • 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
  • 100kHz to 2.2MHz Adjustable Switching Frequency
  • Up to 5A Output Current
  • Fully Assembled and Tested
  • Proven PCB Layout


Designed, Built, Tested

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



Input Type Vin(Min) Vin(Max) Iout(Max) Single/Multiple Output Vout(V) Pout(W) Isolated/Non-Isolated Topology
DC 10 55 5 - 4 20 Non-Isolated Synchronous Buck


Input Type DC
Vin(Min) 10
Vin(Max) 55
Iout(Max) 5
Single/Multiple Output -
Vout(V) 4
Pout(W) 20
Isolated/Non-Isolated Non-Isolated
Topology Synchronous Buck

Maxim Devices (1)

Part Number Name Product Family Order Design kits and evaluation modules
MAX17506 4.5V–60V, 5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation Switching Regulator - Switching Regulators Buy Now Design Kits

Maxim Devices (1)

Part Number Product Family
Switching Regulator - Switching Regulators
4.5V–60V, 5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

Design Files (3)

Title Type Size Date
New 17506 schematic_100517 PDF 620KB 2019-07-09
maxrefdes1054-bom PDF 220KB 2019-07-09
maxrefdes1054-test-results PDF 234KB 2019-07-09
Date Type

New 17506 schematic_100517

(PDF, 620KB)



(PDF, 220KB)



(PDF, 234KB)

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