UNISONIC TECHNOLOGIES CO., LTD

LR9270

CMOS IC

www.unisonic.com.tw

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Copyright © 2017 Unisonic Technologies Co., Ltd

QW-R502-A62.E

800mA LDO REGULATOR

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DESCRIPTION

The UTC LR9270 is a typical LDO (linear regulator) with the

features of high output voltage accuracy, low supply current, low

ON-resistance, and high ripple rejection.

During operation of the UTC LR9270, the dropout voltage is

very low and the response of line transient and load transient are

very well.

Internally, there’re many functions of UTC LR9270 which can be

seen in the block figure. There are a voltage reference unit, an error

amplifier, resistor-net for voltage setting, a current limit circuit, and

a chip enable circuit in each UTC LR9270.

The UTC LR9270 can be used as an ideal of the power supply

for hand-held communication equipment, such as: power source for

portable communication equipment, power source for electrical

appliances, for example, cameras, VCRs and camcorders and

power source for battery-powered equipment.



FEATURES

* Low standby current

* Ultra-Low supply current

* Output voltage (stepwise setting with a step of 0.1V in the range

of 1.2V~4.0V)

* Low dropout voltage

* Line regulation

* High output voltage accuracy

* Low temperature-drift coefficient of output voltage

* Built-in thermal shunt circuit

* Built-in current limit circuit



ORDERING INFORMATION

Ordering Number

Lead Free

Halogen Free

Package

Packing

LR9270xL-xx-AB5-R

LR9270xG-xx-AB5-R

SOT-89-5

Tape Reel

LR9270xL-xx-AE5-R

LR9270xG-xx-AE5-R

SOT-23-5

Tape Reel

LR9270xL-xx-AF5-R

LR9270xG-xx-AF5-R

SOT-25

Tape Reel