Datasheet Summary
Features n n n n n n n n n n
LT1939 Monolithic 2A Step-Down Regulator Plus Linear Regulator/Controller DESCRIPTION
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Wide Input Range: 3V to 25V Short-Circuit Protected Over Full Input Range 2A Output Current Capability Adjustable/Synchronizable Fixed Frequency Operation from 250kHz to 2.2MHz Soft-Start/Tracking Capability Output Adjustable Down to 0.8V Adjustable Linear Regulator/Driver with 13mA Output Capability Power Good parator with plementary Outputs Low Shutdown Current: 12μA Thermally Enhanced 3mm × 3mm DFN Package
The LT®1939 is a current mode PWM step-down DC/DC converter with an internal 2.3A switch. The wide input range of 3V to 25V makes the LT1939...