DESCRIPTION

The UTC LR9102/A 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 LR9102/A, the dropout voltage is

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

very well.

Internally, there’re many functions of UTCLR9102/A 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 LR9102/A,with auto

discharge function at off state.

The UTC LR9102/A can be used as an ideal ofthe 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.