LR9273
LR9273 is SUPER LOW ON RESISTANCE/LOW VOLTAGE 1A LDO REGULATOR manufactured by Unisonic Technologies.
DESCRIPTION
The UTC LR9273 is a typical LDO (linear regulator) with features of super low dropout, 1A output current capability, and -3m V typical load regulation at 1A.
During operation of the UTC LR9273, 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 LR9273 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 LR9273.
The UTC LR9273 can be used as an ideal of the power supply for hand-held munication equipment, such as: power source for portable munication equipment, power source for electrical appliances, for example, cameras, VCRs and camcorders and power source for battery-powered equipment.
- FEATURES
- Ultra Supply Current:
60µA (Typ.)
- Standby Mode:
0.1µA (Typ.)
- Very Low Dropout Voltage:
0.18V (Typ.)
@IOUT =1A, VOUT =2.85V
- Ripple Rejection:
70d B (Typ.)
@f=1k Hz,VOUT=2.85V
- Temperature-Drift Coefficient ±100ppm/°C (Typ.) of Output Voltage:
- Well Line Regulation:
0.02%/ V (Typ.)
- Output Voltage Accuracy:
±1.5% (Typ.)
- Internal Fold Back Protection 250m A (Typ.) @ short mode
Circuit:
- CIN=COUT=4.7µF or more (Ceramic capacitors) are remended to be used with this IC
CMOS IC
SOP-8
SOT-89-5
.unisonic..tw Copyright © 2017 Unisonic Technologies Co., Ltd
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Preliminary
- ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
Package
LR9273x L-xx-S08-R
LR9273x G-xx-S08-R
SOP-8...
