Datasheet Summary
Features
- Extremely Low Dropout
- Low Cost
- Fixed 5V Output, Trimmed to ±1%
- 700µA Quiescent Current
- 1mV Line Regulation
- 5mV Load Regulation
- Thermal Limit
- 4A Output Current Guaranteed
- Available in a 3-Pin TO-92 Package
Low Dropout Regulator Driver
DESCRIPTIO
The LT®1123 is a 3-pin bipolar device designed to be used in conjunction with a discrete PNP power transistor to form an inexpensive low dropout regulator. The LT1123 consists of a trimmed bandgap reference, error amplifier, and a driver circuit capable of sinking up to 125mA from the base of the external PNP pass transistor. The LT1123 is designed to provide a fixed output voltage of 5V.
The drive pin of the...