Maxim Integrated MAX17625 Synchronous Step-Down Converters

Maxim Integrated MAX17625 Synchronous Step-Down Converters

Maxim Integrated MAX17625 Synchronous Step-Down Converters have integrated MOSFETs and compensation components. These operate over a 2.7V to 5.5V input voltage range. The MAX17625 supports up to 700mA load current and allows the use of small, low-cost input and output capacitors. The output voltage can be adjusted from 0.8V to 3.3V. When the EN pin is asserted, an internal power-up sequence ramps up the error-amplifier reference, resulting in output-voltage soft-start. The FB pin monitors the output voltage through a resistor divider. The devices select either PFM or forced-PWM mode depending on the state of the MODE pin at power-up. By pulling the EN pin to low, the devices enter shutdown mode and consume only 0.1µA (typ) of standby current.


  • Easy to use
    • 2.7V to 5.5V input
    • Adjustable 0.8V to 3.3V output
    • ±1% feedback accuracy
    • Up to 700mA output current
    • Fixed 2MHz or 4MHz operation
    • 100% duty-cycle operation
    • Internally compensated
    • All-ceramic capacitors
  • High efficiency
    • Selectable PWM- or PFM-mode of operation
    • Shutdown current as low as 0.1μA (typ)
  • Flexible design
    • Internal soft-start and pre-bias startup
    • Open-drain power good output (PGOOD Pin)
  • Robust operation
    • Overtemperature protection
    • Overcurrent protection
    • -40°C to +125°C ambient operating temperature/-40°C to +150°C junction temperature

Application Circuit

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