Components

9.5A Integrated Synchronous Boost Converter Delivers Up to 16Vout

The MP3437 from Monolithic Power Systems is a 600kHz fixed frequency, wide input range, highly integrated boost converter. The MP3437 starts from an input voltage as low as 2.7V and supports up to 20W of load power from a 1-cell battery with integrated low RDS(ON) power MOSFETs.

The MP3437 adopts constant-off-time (COT) control topology providing fast transient response. QFN package has MODE pin which can support the selection of pulse-skip mode (PSM), forced continuous conduction mode (FCCM) and ultrasonic mode (USM) in light-load condition.

The cycle-by-cycle current limit on low-side MOSFET prevents current runaway, and the high-side MOSFET eliminates the need for an external Schottky diode.

The MP3437 supports auto-pass-through mode when VIN is higher than VOUT-SET in PSM mode. It also features with programmable input under-voltage lockout (UVLO) and over temperature protection.

The MP3437 is available in QFN-10 (2mmx2.5mm) and TSOT23-8 package.

Features & Benefits

  • 7V-to-16V Startup Voltage
  • 8V-to-16V Operation Voltage
  • Up to 16V Output Voltage
  • Support 20W Power Load from 3.3V
  • 5A Internal Switch Current Limit
  • Integrated 14mΩ & 21mΩ Power MOSFET
  • >90% Efficiency for 3.3V VIN to 8V/2.5A
  • Auto Pass-Through Function in PSM Mode
  • 600kHz Fixed Switching Frequency
  • Adaptive COT for Fast Transient Response
  • Internal Soft Start and Compensation
  • Programmable UVLO and Hysteresis
  • 150℃ Over Temperature Protection
  • Over Voltage Protection
  • Available in QFN-10 (2mmx2.5mm) and TSOT23-8 Package.
Monolithic Power Systems Inc.
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