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FAN1538PBX Datasheet

  • FAN1538PBX

  • Dual Channel 1A Low Dropout Linear Regulator with UVLO and S...

  • 6頁(yè)

  • FAIRCHILD

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www.fairchildsemi.com
FAN1538
Dual Channel 1A Low Dropout
Linear Regulator with UVLO and Soft-start
Features
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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 鏗亁ed 2.5V output
General Description
The FAN1538 provides two output voltages: a 鏗亁ed 3.3V
ouput and either a 鏗亁ed 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
speci鏗乧ation.
Applications
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Hard Disk Drives, CD-Roms
Set-top Boxes
ADSL line cards
Motherboards with multiple supplies
Block Diagram
FAN1538A
V1
VIN
= 5V
+
22碌F
NC GND
V
IN
V2
+
22碌F
+
22碌F
2.5V at 1.0A
3.3V at 1.0A
FAN1538B
V1
VIN
= 5V
22
碌F
GND
FB
V2
R1
250
22碌F
R2
1250
1.5V at 1.0A
22碌F
3.3V at 1.0A
V2 = VREF (1 + R1/R2)
REV. 1.0.2 12/17/03

FAN1538PBX 產(chǎn)品屬性

  • Fairchild Semiconductor

  • 低壓降 (LDO) 調(diào)節(jié)器

  • 5.25 V

  • 3.3 V, Adjustable

  • 1 A

  • 0.5 %

  • 2

  • Adjustable, Fixed

  • + 125 C

  • Through Hole

  • SPAK

  • 6 mA

  • + 4.75 V

  • 0.5 %

  • 0 C

  • Reel

  • 1.275 V

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