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| 型號： | LR478L-3.4-S08-T |
| 廠商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | LEAD FREE, SOP-8 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 133K |
| 代理商： | LR478L-3.4-S08-T |
UNISONIC TECHNOLOGIES CO., LTD
LR478
LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw
1 of 8
Copyright 2005 Unisonic Technologies Co., LTD
QW-R112-001,B
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
Packing
LR478-xx-S08-R
LR478L-xx-S08-R
SOP-8
Tape Reel
LR478-xx-S08-T
LR478L-xx-S08-T
SOP-8
Tube
Note: xx: Output Voltage, refer to Rank List as below.
OUTPUT DETECTION VOLTAGE RANK LIST
PART NUMBER
REGULATOR OUTPUT VOLTAGE (V)
DETECTION VOLTAGE (V)
LR478-3.4V
3.40±0.05
4.20±0.09
LR478-3.3V
3.30±0.05
4.20±0.09
LR478-2.5V
2.50±0.05
4.20±0.09
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