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PDF SC4211 Data sheet ( Hoja de datos )
| Número de pieza | SC4211 | |
| Descripción | Very Low Input /Very Low Dropout 1 Amp Regulator | |
| Fabricantes | Semtech Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SC4211 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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POWER MANAGEMENT
Description
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.
SC4211
Very Low Input /Very Low Dropout
1 Amp Regulator With Enable
Features
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
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.
Typical Application Circuits
Applications
Telecom/Networking cards
Motherboards/Peripheral cards
Industrial Applications
Wireless infrastructure
Set top boxes
Medical equipment
Notebook computers
Battery powered systems
SC4211
4 NC
NC 5
VIN
3 VIN
VO 6
ENABLE
2 EN
1 NC
FB
GND
7
8
U1
C1
www.Data VIN
She ENABLE
SC4211
4 NC
NC 5
3 VIN
VO 6
2 EN
FB 7
1 NC
GND 8
U1
C1
et4U.comRevision October 18, 2004
1
R1
R2
VO
VO = 0.5 (R1 + R2) Volts
R2
C2
VO = 0.5V
C2
www.semtech.com
1 page  
POWER MANAGEMENT
Block Diagram
VIN
Rsense
+-
Vdd
EN UVLO
Vout
Vin
Thermal
Shutdown
+
-
Reverse Voltage
Shutdown
Vpump
+
-
0.5V Ref
SC4211
VOUT
FB
GND
2004 Semtech Corp.
5
www.semtech.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SC4211.PDF ] | |
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