Datasheet Linear Technology LT1939EDD#PBF — 数据表

LT1939
Monolithic 2A Step-Down
Regulator Plus Linear
Regulator/Controller
DESCRIPTION FEATURES 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 Comparator with Complementary
Outputs
Low Shutdown Current: 12μA
Thermally Enhanced 3mm × 3mm DFN Package APPLICATIONS 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 suitable for regulating power from a wide variety of sources, including
automotive batteries, industrial supplies and unregulated
wall adapters.
Resistor-programmable 250kHz to 2.2MHz frequency
range and synchronization capability enable optimization …