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| LR9102 Datasheet, PDF (1/4 Pages) Unisonic Technologies – LOW NOISE 300mA LDO REGULATOR | |||
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UNISONIC TECHNOLOGIES CO., LTD
LR9102
Preliminary
LOW NOISE 300mA LDO
REGULATOR
CMOS IC
ï® DESCRIPTION
The UTC LR9102 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, the dropout voltage is
very low and the response of line transient and load transient are
very well.
Internally, thereâre many functions of UTC LR9102 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.
The UTC LR9102 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.
ï® FEATURES
* Ultra Supply Current:
50µA (Typ.)
* Standby Mode:
0.1µA (Typ.)
* Very Low Dropout Voltage:
0.14V (Typ.)
@IOUT =300mA, VOUT =2.85V
* Ripple Rejection:
75dB (Typ.)
@f=1kHz,VOUT=2.85V
* Temperature-Drift Coefficient
±50ppm/°C (Typ.)
of Output Voltage:
* Well Line Regulation:
0.02%/ V (Typ.)
* Output Voltage Accuracy:
±1.0% (Typ.)
* Internal Fold Back Protection
50mA (Typ.) @ short mode
Circuit:
* CIN=COUT=1µF or more (Ceramic capacitors) are recommended to
be used with this IC
ï® RDERING INFORMATION
Note:
Ordering Number
Lead Free
Halogen Free
LR9102L-xx-AE5-R
LR9102G-xx-AE5-R
LR9102L-xx-AF5-R
LR9102G-xx-AF5-R
xx: Output Voltage, refer to Marking Information.
Package
SOT-23-5
SOT-25
LR9102L-xx-AE5-R
(1)Packing Type
(2)Package Type
(3)Output Voltage Code
(4)Halogen Free
(1) R: Tape Reel
(2) AE5: SOT-23-5, AF5: SOT-25
(3) xx: refer to Marking Information
(4) L: Lead Free, G: Halogen Free
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
Packing
Tape Reel
Tape Reel
1 of 4
QW-R502-923.b
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