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BD1865GWL Synchronous Boost DC/DC Converter

By ROHM Semiconductor 77

BD1865GWL Synchronous Boost DC/DC Converter

ROHM's BD1865GWL provides a power supply solution for products powered by a single-cell Li-ion battery. Output currents can go as high as 2 A while discharging it down to 3.2 V. With the MODE pin, BD1865GWL provides a mode selection of PFM/PWM MODE or Mixing-PWM MODE. In PFM/PWM MODE, the product switches automatically between PWM and PFM operation so that high efficiency is achievable over a wide range of load conditions. Mixing-PWM MODE can prevent audible sound by switching noise at light loads.

Features
  • Synchronous boost DC/DC converter
  • VOUT = 5 V/Iomax=2 A
  • Automatically PFM/PWM transition.
  • Efficiency: 90% at 2 A to 5 V (VIN = 3.7 V)
  • Load disconnect during shutdown
  • Circuit current: 66 µA (IO = 0 mA, typ.)
  • Adjustable output voltage: 4.9 V to 5.2 V
  • UVLO detection: 2.1 V (max.)
  • Power supply voltage range (VO = 5 V, TA = 65°C):
    • Iomax = 2 A: 3.2 V to 4.5 V
    • Iomax = 1.8 A: 3 V to 3.2 V
    • Iomax = 1.5 A: 2.7 V to 3 V
    • Iomax = 1.33 A: 2.5 V to 2.7 V
  • Switching frequency: 2.5 MHz
  • Thermal shutdown

New Products:

BD1865GWL-E2

Tags:

Power ManagementSemiconductors & Dev ToolsROHM Semiconductor

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