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.

Features

• 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

more information: https://www.maximintegrated.com/en/products/power/switching-regulators/MAXM17625.html