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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.
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