1.0A LOW DROPOUT LINEAR REGULATOR WITH OUTPUT VOLTAGE SETTING OPTIONS

DESCRIPTION

The UTC LR18943A is a typical LDO that features output

voltage setting options, very low dropout voltage as low as 0.3V

at output current 1.0A, an enable input and the soft-start reduces

inrush current of the load capacitors and minimizes stress on the

input power source during start-up. An enable pin to further

reduce power dissipation while shutdown..

The UTC LR18943A is stable with any type of output

capacitor of 10μF or more. A precision reference and feedback

control deliver 2% accuracy.

FEATURES

* Low VIN and wide VIN range: 1.0V~5.5V

* Bias voltage (VPP) range: 3.0V~5.5V

* Low VOUT range: 0.8V~3.3V

* 300mV dropout @1.0A, VPP=5V

* 2% output Voltage

* output voltage setting options

* Programmable soft-start provides linear voltage startup

* Stable with any output capacitor≥10Μf