LT3021ES8-1.5

低压差稳压器 LT3021/LT3021-1.2/ LT3021-1.5/LT3021-1.8 - 500mA, Low Voltage, Very Low Dropout Linear Regulator

DESCRIPTIO U

The LT®3021 is a very low dropout voltage VLDOTM linear regulator that operates from input supplies down to 0.9V. This device supplies 500mA of output current with a typical dropout voltage of 160mV. The LT3021 is ideal for low input voltage to low output voltage applications, providing comparable electrical efficiency to that of a switching regulator.

FEATURES

■ VIN Range: 0.9V to 10V

■ Dropout Voltage: 160mV Typical

■ Output Current: 500mA

■ Adjustable Output VREF = VOUTMIN = 200mV

■ Fixed Output Voltages: 1.2V, 1.5V, 1.8V

■ Stable with Low ESR, Ceramic Output Capacitors 3.3µF Minimum

■ 0.2% Load Regulation from 0mA to 500mA

■ Quiescent Current: 120µA Typ

■ 3µA Typical Quiescent Current in Shutdown

■ Current Limit Protection

■ Reverse-Battery Protection

■ No Reverse Current

■ Thermal Limiting with Hysteresis

■ 16-Pin DFN 5mm × 5mm and 8-Lead SO Packages

APPLICATIONS

■ Low Current Regulators

■ Battery-Powered Systems

■ Cellular Phones

■ Pagers

■ Wireless Modems