500mA, low-voltage linear regulator
DESCRIPTION
The UTC LR1125 is a positive LDO (voltage linear regulator)
operates from a 2.25V ~ 5.5V supply and delivers a guaranteed
500mA load current with low 175mV dropout. Low dropout voltage
and large output current can be provided by built-in low
on-resistance transistor. Because an internal PMOS pass transistor
allows low 210μA supply current, the LR1125 can be ideal for
portable equipment such as PDAs, cellular phones, cordless
phones, and other equipments including base stations and docking
stations. It also includes an active-low, power-OK output that mean
a 0.02μA shutdown mode, short-circuit protection and
thermal-shutdown protection when the output is out of regulation.
FEATURES
* Low Dropout : 175mV Dropout at 500mA
* High accuracy output voltage: +/- 1.5%
* Guaranteed Output:500mA
* Thermal-Overload Protection
* Internal Current Limiting
* Low 210μA Ground Current
* 0.02μA Shutdown Current
* VOUT Can Be Adjusted From 0.8V ~ 4.5V |
