UNISONIC TECHNOLOGIES CO., LTD

LR1803

Preliminary

LINEAR INTEGRATED CIRCUIT

www.unisonic.com.tw

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Copyright © 2016 Unisonic Technologies Co., Ltd

QW-R102-081.a

700mA HIGH SPEED LDO

REGULATOR WITH REVERSE

CURRENT PROTECTION



DESCRIPTION

The UTC LR1803 operate from a +1.7V ~ +6V input supply as

fast low-dropout linear regulators. Wide output voltage range

options are available. The fast response characteristic to make

UTC LR1803 suitable for low voltage microprocessor application.

The low quiescent current operation and low dropout quality

caused by the CMOS process.

The UTC LR1803 has low dropout voltage. The ground pin

current is typically 100μA. Output Voltage Precision: Multiple

output voltage options are available and ranging from 1.5V~5V at

room temperature with a guaranteed accuracy of ±1.5%, and

±3.0% when varying line and load. With the reverse current

protection unction of a driver transistor, the reverse current flow is

current will not flow back to the UTC LR1803.



FEATURES

* The Guaranteed Output Current is 700mA DC

* Low Power Consumption: 100μA

* Output Voltage Accuracy ±1.5%

* The reverse current protection

1

SOT-89-5

SOT-25

1

3

5

2

4

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ORDERING INFORMATION

Ordering Number

Package

Packing

LR1803G-xx-AB5-R

SOT-89-5

Tape Reel

LR1803G-xx-AF5-R

SOT-25

Tape Reel

Note: xx: Output Voltage, refer to Marking Information.