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SC4205IS-2.5TRT Datasheet

  • SC4205IS-2.5TRT

  • Very Low Dropout 1 Amp Regulator With Enable

  • 8頁(yè)

  • SEMTECH   SEMTECH

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Very Low Dropout
1 Amp Regulator With Enable
POWER MANAGEMENT
Description
The SC4205 is a high performance positive voltage
regulator designed for use in applications requiring very
low dropout voltage at up to 1 Amp. Since it has
superior dropout characteristics compared to regular
LDOs, it can be used to supply 2.5V on motherboards or
2.8V on peripheral cards from the 3.3V supply thus
allowing the elimination of costly heatsinks. Additionally,
the SC4205 has an enable pin to further reduce power
dissipation while shut down. The SC4205 provides ex-
cellent regulation over variations in line, load and tem-
perature.
The SC4205 is available in the SOIC-8EDP package with
internally preset outputs that are also adjustable using
external resistors.
SC4205
Features
350mV dropout @ 1A
Adjustable output from 1.2V to 4.8V
2.5V and 1.8V options (adjustable externally
using resistors)
Over current and over temperature protection
Enable pin
10碌A(chǔ) quiescent current in shutdown
Low reverse leakage (output to input)
Surface mount and through-hole packages
Full industrial temperature range
Available in SOIC-8EDP package
Applications
Battery powered systems
Motherboards
Peripheral cards
Network cards
Set Top Boxes
Medical Equipment
Notebook Computers
Typical Application Circuits
SC4205
4
NC
VIN
EN
NC
NC
VO
ADJ
GND
5
6
7
8
VIN
ENABLE
3
2
1
VO
R1
VO
C2
=
1.2 (R1
+
R2)
R2
Volts
C1
U1
R2
SC4205
4
NC
VIN
EN
NC
NC
VO
ADJ
GND
5
6
7
8
4
NC
VIN
EN
NC
SC4205
NC
VO
ADJ
GND
5
6
7
8
VIN
ENABLE
3
2
1
VO
VIN
ENABLE
3
2
1
VO
C1
U1
C2
C1
U1
C2
Notes:
(1) Maximum VO setpoint for 1.8V parts = 5.4V.
(2) This device is designed to operate with ceramic input and output capacitors.
Revision: June 28, 2004
1
www.semtech.com

SC4205IS-2.5TRT 產(chǎn)品屬性

  • 0現(xiàn)貨

  • 2,500 : ￥7.08336卷帶（TR）

  • -

  • 卷帶（TR）

  • 不適用于新設(shè)計(jì)

  • 正

  • 固定

  • 1

  • 5.5V

  • 2.5V

  • -

  • 0.5V @ 1A

  • 1A

  • 35 μA

  • 1.75 mA

  • -

  • 使能

  • 過(guò)流，超溫

  • -40°C ~ 150°C

  • 表面貼裝型

  • 8-SOIC（0.154"，3.90mm 寬）裸露焊盤(pán)

  • 8-SOIC，EDP

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