Maxim Integrated MAX38650 nanoPower Buck Converter

Maxim Integrated MAX38650 nanoPower Buck Converter provides an ultra-low 390nA quiescent current and operates from a 1.8V to 5.5V input voltage. The MAX38650 supports load currents of up to 100mA with peak efficiencies of 95%. The MAX38650 offers high efficiency throughout the load range with a small total solution size. The device is ideal for battery applications where extended battery life is required.

The Maxim MAX38650 nanoPower Buck Converter supports 100% duty cycle operation allowing seamless transition as battery discharges and falls below the target output voltage. The MAX38650 utilizes a unique control scheme that allows ultra-low quiescent current and high efficiency over a wide output current range.

The MAX38650 Converter is offered in a space-saving, 1.58mm x 0.89mm, 6-pin wafer-level package (WLP) (2 x 3 bumps, 0.4mm pitch), and is specified over the -40°C to +125°C operating temperature range.

Features

• Extends battery life
  • 390nA Ultra-low quiescent supply current
  • 5nA Shutdown current
  • 95% Peak efficiency and over 85% at 10µA
• Easy to use addresses popular operation
  • 1.8V to 5.5V Input Range
  • Single resistor-adjustable V_OUT from 1.2V to 3.3V (MAX38650A)
  • Preprogrammed V_OUT from 1.2V to 5V (MAX38650B) in steps of 50mV
  • 100% Duty cycle mode for low dropout operation
  • ±1.5% Output voltage accuracy
  • 100mA Load current
• Protects system in multiple use cases
  • Reverse-current blocking in shutdown
  • Active discharge feature
• Reduces size and increases reliability
  • -40°C to +125°C Operating temperature range
  • 1.58mm x 0.89mm, 0.4mm pitch, 6-pin (2 x 3) WLP

Application schematic

more information: https://www.mouser.com/catalog/specsheets/Maxim_01282021_MAX38650%20DS.pdf

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