LR478 Datasheet, PDF (1/8 Pages) Unisonic Technologies – LINEAR INTEGRATED CIRCUIT

UNISONIC TECHNOLOGIES CO., LTD
LR478
LINEAR INTEGRATED CIRCUIT

REGULATOR+RESET IC
DESCRIPTION
The UTC LR478 developed for use in CD-ROM drives,
combines a 3V regulator adapted to low power consumption with
a much-sought reset function (regulator input monitoring),with
internal delay circuit, set to detect 4.2V.
FEATURES
*Large Output Current: 300mA (max.)
*High Ripple Rejection Rate: 80dB(typ.)
*Internal Thermal Shutdown Circuit
*Internal Current Limiting Circuit
*Easy Set Delay Time from Voltage Detection to Reset Release
SOP-8
*Pb-free plating product number: LR478L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
Package
LR478-xx-S08-R
LR478L-xx-S08-R
SOP-8
LR478-xx-S08-T
LR478L-xx-S08-T
SOP-8
Note: xx: Output Voltage, refer to Rank List as below.
Packing
Tape Reel
Tube
OUTPUT DETECTION VOLTAGE RANK LIST
PART NUMBER
LR478-3.4V
LR478-3.3V
LR478-2.5V
REGULATOR OUTPUT VOLTAGE (V)
3.40±0.05
3.30±0.05
2.50±0.05
DETECTION VOLTAGE (V)
4.20±0.09
4.20±0.09
4.20±0.09
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