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MAX17521 - Synchronous Step-Down DC-DC Converter

Description

The MAX17521 dual-output, high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input.

The converter can deliver up to 1A at each output.

Each output is programmable from 0.9V to 92%VIN.

Features

  • Reduces External Components and Total Cost.
  • No Schottky.
  • Synchronous Operation.
  • All-Ceramic Capacitors, Compact Layout.
  • Reduces Number of DC-DC Regulators to Stock.
  • Wide 4.5V to 60V Input.
  • Each Output Adjustable From 0.9V to 92%VIN.
  • Pin-Selectable 560kHz or 300kHz Switching Frequency.
  • Independent Input Voltage Pin for Each Output.
  • Reduces Power Dissipation.
  • Peak Efficiency > 90%.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MAX17521 EVALUATION KIT AVAILABLE 60V, 1A, Dual-Output, High-Efficiency, Synchronous Step-Down DC-DC Converter General Description The MAX17521 dual-output, high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4.5V to 60V input. The converter can deliver up to 1A at each output. Each output is programmable from 0.9V to 92%VIN. The feedback voltage regulation accuracy over -40°C to +125°C is ±1.7%. The MAX17521 uses peak-current-mode control. Each output can be operated in the pulse-width modulation (PWM) or pulse-frequency modulation (PFM) control schemes. The MAX17521 is available in a 24-pin (4mm x 5mm) TQFN package. Simulation models are available.
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