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Microchip’s MCP1792 and MCP1793 are high-voltage, Low Dropout (LDO) regulators which supply a maximum output current of 100mA from a wide input-voltage range of 4.5V-55V. This capability makes the LDOs ideal for use in 12V, 24V or 48V power rails, and in high-voltage battery packs.

A low under-voltage lock-out threshold of 2.4V at shut-down makes these LDOs applicable in cold-cranking conditions in automotive electronic circuits.

The MCP1792 and MCP1793 parts are available as standard with a fixed output voltage of either 3.3V or 5.0V. The regulator’s output is stable with 2.2μF ceramic capacitors.

The device is protected from short circuits by a current fold-back function, and from overheating through thermal shut-down protection.

The MCP1792 has three leads, and the MCP1793, which offers shut-down functionality through its Shdn pin, has five. While in shut-down mode, current drops to 2μA.

The device itself draws a ground current of 100μA, while delivering a maximum output current of 100mA.

Smart Battery Pack

Cordless Power Tool

  • Handles transient voltages up to 70V
  • AEC-Q100 qualified to Grade 0
  • PPAP capable
  • 25μA quiescent supply current
  • Voltage supply to MCU or FPGA from battery power source
  • Automotive electronics systems
  • Power tools
  • E-bikes
  • Smoke detectors
  • Alarm sensors


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