參數(shù)資料
型號(hào): FAN1538PBX
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: Dual Channel 1A Low Dropout Linear Regulator with UVLO and Soft-start
中文描述: DUAL OUTPUT, FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, PSSO5
封裝: SPAK-5
文件頁(yè)數(shù): 1/6頁(yè)
文件大小: 75K
代理商: FAN1538PBX
www.fairchildsemi.com
REV. 1.0.2 12/17/03
Features
Two independent outputs
Load regulation: 0.05% typical
Under-voltage lockout and softstart
Over Temperature protection
T0-252 DPAK, 5-lead SPAK packages
Fixed 3.3V and adjustable or fixed 2.5V output
Applications
Hard Disk Drives, CD-Roms
Set-top Boxes
ADSL line cards
Motherboards with multiple supplies
General Description
The FAN1538 provides two output voltages: a fixed 3.3V
ouput and either a fixed 2.5V or adjustable output with 1A
output current capability. Refer to Ordering Information for
details.
Current limit protects against short circuit currents and on
chip over temperature circuitry limits the maximum die tem-
perature.
Under voltage lockout and softstart circuitry protects against
unregulated output voltages when the input voltage is below
specification.
Block Diagram
FAN1538B
V1
V2
FB
3.3V
V2 = VREF (1 + R1/R2)
at 1.0A
22
μ
F
1.5V at 1.0A
R2
1250
R1
250
22
μ
F
22
μ
F
22
μ
F
2.5V at 1.0A
3.3V at 1.0A
22
μ
F
VIN
= 5V
VIN
= 5V
+
+
V
IN
V1
NC GND
V2
FAN1538A
22
μ
F
+
GND
FAN1538
Dual Channel 1A Low Dropout
Linear Regulator with UVLO and Soft-start
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FAN1539BMPX 功能描述:低壓差穩(wěn)壓器 - LDO 1A FIXED LINEAR REG RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
FAN1539MPX 功能描述:低壓差穩(wěn)壓器 - LDO 1a Low Q Current LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓(最大值):307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20