The IMP37 series of Low Dropout (LDO) three-terminal voltage regulators feature guaranteed low dropout voltages at currents up to 0.8A. The IMP37 regulator family dropout voltage is guaranteed to be 0.95V or lower at 0.8A. At 100mA, the maximum dropout voltage is 0.8V. Compared with “1117” type LDOs, the IMP37 has a 20 lower dropout voltage.

Key Features

◆ Low Dropout Voltage

– 0.8V maximum at 100mA

– 0.95V maximum at 800mA

– 20 lower dropout voltage than “1117” LDO regulators

◆ Guaranteed Low Dropout Voltage at Multiple Current Levels

◆ 1 Trimmed 2.5V, 3.0V and 3.3V Outputs

◆ Reduced Quiescent Current: 75μA Maximum

◆ Short Circuit and Thermal Protection

◆ Space Saving SOT-223 Surface Mount Package

◆ “1117” Pin Compatible

Applications

◆ High-efficiency linear power supplies

◆ Post regulator for switching supplies

◆ 5V to 3.3V linear regulators

◆ USB hubs

◆ Battery chargers

◆ Routers, ISDN/DSL modems