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SC4211 Datasheet(PDF) 1 Page - Semtech Corporation

Part No. SC4211
Description  Very Low Input /Very Low Dropout 1 Amp Regulator With Enable
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Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
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SC4211 Datasheet(HTML) 1 Page - Semtech Corporation

   
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SC4211
Very Low Input /Very Low Dropout
1 Amp Regulator With Enable
POWER MANAGEMENT
POWER MANAGEMENT
ENABLE
C1
R2
VIN
R1
U1
SC4211
4
3
2
8
1
5
6
7
NC
VIN
EN
GND
NC
NC
VO
FB
VO
C2
Revision October 18, 2004
The SC4211 is a high performance positive voltage
regulator designed for use in applications requiring very
low Input voltage and very low dropout voltage at up to 1
amp. It operates with a Vin as low as 1.4V, with output
voltage programmable as low as 0.5V. The SC4211 fea-
tures ultra low dropout, ideal for applications where Vout
is very close to Vin. Additionally, the SC4211 has an en-
able pin to further reduce power dissipation while shut-
down. The SC4211 provides excellent regulation over varia-
tions in line, load and temperature.
The SC4211 is available in the SOIC-8EDP (Exposed Die
Pad) package. The output voltage can be set via an exter-
nal divider or to 0.5V depending on how the FB pin is con-
figured.
Input Voltage as low as 1.4V
250mV dropout @ 1A
Adjustable output from 0.5V to 3.3V
Over current and over temperature protection
Enable pin
10µA quiescent current in shutdown
Low reverse leakage (output to input)
Full industrial temperature range
Available in SOIC-8EDP package
Telecom/Networking cards
Motherboards/Peripheral cards
Industrial Applications
Wireless infrastructure
Set top boxes
Medical equipment
Notebook computers
Battery powered systems
Volts
R2
R2)
(R1
0.5
VO
+
=
Description
Features
Applications
Typical Application Circuits
C2
U1
4
3
2
8
1
5
6
7
NC
VIN
EN
GND
NC
NC
VO
FB
VO = 0.5V
VIN
C1
ENABLE
SC4211


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