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LT3021 - Very Low Dropout Linear Regulator

Description

The LT®3021 is a very low dropout voltage (VLDO™) 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.

Features

  • n VIN Range: 0.9V to 10V n Dropout Voltage: 160mV Typical n Output Current: 500mA n Adjustable Output (VREF = VOUT(MIN) = 200mV) n Fixed Output Voltages: 1.2V, 1.5V, 1.8V n Stable with Low ESR, Ceramic Output Capacitors (3.3μF Minimum) n 0.2% Load Regulation from 0mA to 500mA n Quiescent Current: 120μA (Typ) n 3μA Typical Quiescent Current in Shutdown n Current Limit Protection n Reverse-Battery Protection n No Reverse Current n Thermal Limiting with Hysteresis n 16-Pin DFN (5mm × 5mm) and 8-Lea.

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Full PDF Text Transcription

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FEATURES n VIN Range: 0.9V to 10V n Dropout Voltage: 160mV Typical n Output Current: 500mA n Adjustable Output (VREF = VOUT(MIN) = 200mV) n Fixed Output Voltages: 1.2V, 1.5V, 1.8V n Stable with Low ESR, Ceramic Output Capacitors (3.3μF Minimum) n 0.2% Load Regulation from 0mA to 500mA n Quiescent Current: 120μA (Typ) n 3μA Typical Quiescent Current in Shutdown n Current Limit Protection n Reverse-Battery Protection n No Reverse Current n Thermal Limiting with Hysteresis n 16-Pin DFN (5mm × 5mm) and 8-Lead SO Packages APPLICATIONS n Low Current Regulators n Battery-Powered Systems n Cellular Phones n Pagers n Wireless Modems TYPICAL APPLICATION 1.8V to 1.5V, 500mA VLDO Regulator VIN 1.8V IN OUT 3.3μF LT3021-1.5 SHDN SENSE GND VOUT 1.5V 3.3μF 500mA 3021 TA01 LT3021/LT3021-1.
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