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SC4215A_07 Datasheet

  • SC4215A_07

  • Very Low Input /Very Low Dropout 2 Amp Regulator With Enable

  • 9頁

  • SEMTECH   SEMTECH

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Very Low Input /Very Low Dropout
2 Amp Regulator With Enable
POWER MANAGEMENT
Description
The SC4215A 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
2 amperes. It operates with a Vin as low as 1.4V, with
output voltage programmable as low as 0.5V. The
SC4215A features ultra low dropout, ideal for applica-
tions where Vout is very close to Vin. Additionally, the
SC4215A has an enable pin to further reduce power dis-
sipation while shut- down. The SC4215A provides ex-
cellent regulation over variations in line, load and tem-
perature.
The SC4215A is available in the SOIC-8EDP (Exposed Die
Pad) package. The output voltage can be set via an exter-
nal divider or to fixed settings of 0.5V and 1.2V depend-
ing on how the FB pin is configured.
SC4215A
Features
Input Voltage as low as 1.4V
400mV dropout @ 2A
Adjustable output from 0.5V
Over current and over temperature protection
Enable pin
10碌A quiescent current in shutdown
Full industrial temperature range
Available in SOIC-8EDP Lead-free package, fully
WEEE and RoHS compliant
Applications
Telecom/Networking cards
Motherboards/Peripheral cards
Industrial applications
Wireless infrastructure
Set top boxes
Medical equipment
Notebook computers
Battery powered systems
Typical Application Circuits
U1
4
NC
VIN
EN
NC
NC
VO
FB
GND
5
6
7
8
VIN
ENABLE
3
2
1
VO
R1
VO
C2
=
0.5 (R1
+
R2)
R2
Volts
SC4215A
C1
R2
U1
4
NC
VIN
EN
NC
NC
VO
FB
GND
5
6
7
8
4
NC
VIN
EN
NC
U1
NC
VO
FB
GND
5
6
7
8
VIN
ENABLE
3
2
1
VO
VIN
ENABLE
3
2
1
VO
VO
=
0.5V
VO
=
1.2V
1V
SC4215A
C1
C2
C1
SC4215A
C2
Revision: April 25, 2007
1
www.semtech.com

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