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MAX17531 - 50mA Synchronous Step-Down DC-DC Converter

General Description

The MAX17531 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4V to 42V input.

The converter can deliver up to 50mA and generates output voltages from 0.8V up to 0.9 x VIN.

Key Features

  • Reduces External Components and Total Cost.
  • No Schottky.
  • Synchronous.
  • Internal Compensation for Any Output Voltage.
  • Built-In Soft-Start.
  • All-Ceramic Capacitors, Compact Layout.
  • Reduces Number of DC-DC Regulators to Stock.
  • Wide 4V to 42V Input.
  • Adjustable 0.8V up to 0.9 x VIN Output.
  • 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization.
  • Reduces Power Dissipation.

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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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MAX17531 4V to 42V, 50mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter with 22µA No-Load Supply Current General Description The MAX17531 high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operates over a 4V to 42V input. The converter can deliver up to 50mA and generates output voltages from 0.8V up to 0.9 x VIN. The feedback (FB) voltage is accurate to within ±1.75% over -40°C to +125°C. The MAX17531 uses peak-current-mode control and can be operated in pulse-width modulation (PWM) or pulsefrequency modulation (PFM) modes. The device is available in 10-pin (3mm x 2mm) TDFN and 10-pin (3mm x 3mm) μMAX® packages. Simulation models are available.