· Integrated 40mΩ high-side MOSFET
· Uses external low-side MOSFET or Diode Support Synchronous and Asynchronous Buck
· N-MOSFET control as Type-C load switches
· Input bulk capacitance discharging during power-swap at VPIN pin
· Input voltage operating range from 3.5V to 26V
· Programmable VOUT range: 1.25V to 5.5V
· Up to 92.5% efficiency at 20VIN, 5VOUT/3A
· 475kHz internal oscillator
· Bypass load switch control for dropout operation
· Internal fixed soft-start time
· Cycle-by-cycle current limit
· Output short-circuit protection with hiccup
· Output over-voltage protection
· Thermal shutdown
· QFN-20 package, 3mm×3mm
The IM2600 is a power-management IC mainly for Type-C peripheral applications. It integrates a synchronous Buck converter with a built-in high-side MOSFET and a gate driver for an optional low-side external MOSFET. If the input voltage VIN decreases to a voltage close to VOUT, it enters dropout operation and turns on an external and additional MOSFET, bypassing the internal high-side MOSFET and inductor. It features an internal fixed soft-start function and offers protection features including input UVLO, cycle-by-cycle current limit, output short-circuit protection (SCP) or OVP and thermal shutdown.
The IM2600 also control two N-MOSFETs as load switches helping to reduce BOM cost. With a micro-processor, it can realize input bulk capacitance discharging during power swap. The IM2600 is available in a 20-pin QFN package with featuring an exposed die attach pad to aid thermal dissipation.
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