LT3020/LT3020-1.2/ LT3020-1.5/LT3020-1.8 100mA, Low Voltage, Very Low Dropout Linear Regulator UFEATURESDESCRIPTIO ■ VIN Range: 0.9V to 10V The LT®3020 is a very low dropout voltage (VLDOTM) linear ■ Minimum Input Voltage: 0.9V regulator that operates from input supplies down to 0.9V. ■ Dropout Voltage: 150mV Typical This device supplies 100mA of output current with a ■ Output Current: 100mA typical dropout voltage of 150mV. The LT3020 is ideal for ■ Adjustable Output (VREF = VOUT(MIN) = 200mV) low input voltage to low output voltage applications, ■ Fixed Output Voltages: 1.2V, 1.5V, 1.8V providing comparable electrical efficiency to that of a ■ Stable with Low ESR, Ceramic Output Capacitors switching regulator. (2.2µF Minimum) The LT3020 regulator optimizes stability and transient ■ 0.2% Load Regulation from 1mA to 100mA response with low ESR, ceramic output capacitors as ■ Quiescent Current: 120µA (Typ) small as 2.2µF. Other LT3020 features include 0% typical ■ 3µA Typical Quiescent Current in Shutdown line regulation and 0.2% typical load regulation. In shut- ■ Current Limit Protection down, quiescent current drops to 3µA. ■ Reverse-Battery Protection ■ No Reverse Current Internal protection circuitry includes reverse-battery pro- ■ Thermal Limiting with Hysteresis tection, current limiting, thermal limiting with hysteresis, ■ 8-Lead DFN (3mm × 3mm) and MSOP Packages and reverse-current protection. The LT3020 is available as U an adjustable output device with an output range down to APPLICATIO S the 200mV reference. Three fixed output voltages, 1.2V, 1.5V and 1.8V, are also available. ■ Low Current Regulators ■ Battery-Powered Systems The LT3020 regulator is available in the low profile ■ Cellular Phones (0.75mm) 8-lead (3mm × 3mm) DFN package with Ex- ■ Pagers posed Pad and the 8-lead MSOP package. ■ Wireless Modems , LTC and LT are registered trademarks of Linear Technology Corporation. VLDO is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. UTYPICAL APPLICATIOMinimum Input Voltage 1.1 IL = 100mA 1.0 0.9 1.8V to 1.5V, 100mA VLDO Regulator 0.8 0.7 V VOUT IN IN OUT 1.5V 0.6 1.8V 100mA 2.2µF LT3020-1.5 2.2µF 0.5 SHDN 0.4 GND 0.3 MINIMUM INPUT VOLTAGE (V) 0.2 3020 TA01 0.1 0–50 –25 0 25 50 75 100 125 TEMPERATURE (°C) 3020 TA02 3020fc 1
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