sc4215a Semtech Corporation, sc4215a Datasheet

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sc4215a

Manufacturer Part Number
sc4215a
Description
Sc4215a Very Low Input / Very Low Dropout 2 Amp Regulator With Enable
Manufacturer
Semtech Corporation
Datasheet

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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-8-EDP (Exposed
Die Pad) package. The output voltage can be set via an
external divider or to fixed settings of 0.5V and 1.2V de-
pending on how the FB pin is configured.
Revision: November 13, 2007
POWER MANAGEMENT
Description
Typical Application Circuits
POWER MANAGEMENT
ENABLE
VIN
C1
4
3
2
1
NC
VIN
EN
NC
SC4215A
U1
GND
NC
VO
FB
5
6
7
8
ENABLE
VIN
VO
C1
C2
4
3
2
1
0
5 .
NC
VIN
EN
NC
VO
V
SC4215A
U1
1
Features
Applications
ENABLE
Very Low Input /Very Low Dropout
GND
NC
VO
FB
VIN
Input Voltage as low as 1.4V
400mV dropout @ 2A
Adjustable output from 0.5V
Over current and over temperature protection
Enable pin
10µA quiescent current in shutdown
Full industrial temperature range
Available in SOIC-8-EDP Lead-free package, fully
WEEE and RoHS compliant
Telecom/Networking cards
Motherboards/Peripheral cards
Industrial applications
Wireless infrastructure
Set top boxes
Medical equipment
Notebook computers
Battery powered systems
5
6
7
8
2 Amp Regulator With Enable
R1
R2
C1
4
3
2
1
C2
NC
VIN
EN
NC
SC4215A
VO
U1
VO
GND
NC
VO
FB
0.5
5
6
7
8
(R1
R2
R2)
Volts
SC4215A
www.semtech.com
VO
C2
1.2V
1
V
VO

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sc4215a Summary of contents

Page 1

... 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 ...

Page 2

... SC4215A ...

Page 3

... SC4215A ...

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... SC4215A ...

Page 5

... Marking Information Top View SC4215A yyww xxxxx yyww = Datecode (Example: 0552) xxxxx = Semtech Lot No. (Example: 00101) 2007 Semtech Corp SC4215A www.semtech.com ...

Page 6

... POWER MANAGEMENT Typical Characteristics 2007 Semtech Corp. Region of Instability Stable Region Region of Instability Region of Instability Stable Region Region of Instability 6 SC4215A www.semtech.com ...

Page 7

... Component Selection Input capacitor: A large bulk capacitance put load) should be closely placed to the input supply pin of the SC4215A to ensure that Vin does not sag below 1.4V. Also a minimum of 4.7µF ceramic capacitor is rec- ommended to be placed directly next to the Vin pin. This allows for the device being some distance from any bulk capacitance on the rail ...

Page 8

... e aaa bbb A1 ccc bxN bbb C A GAGE PLANE 0.25 SEE DETAIL SIDE VIEW TO BE DETERMINED AT DATUM PLANE 8 SC4215A DIMENSIONS INCHES MILLIMETERS MIN NOM MAX MIN NOM MAX - - .053 .069 1.35 1. .000 .005 0.00 0. .049 .065 1.25 1. .012 ...

Page 9

... FAILURE MAY COMPROMISE THE THERMAL AND/OR FUNCTIONAL PERFORMANCE OF THE DEVICE. Contact Information 2007 Semtech Corp. E SOLDER MASK D DIM Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805)498-2111 FAX (805)498-3804 9 SC4215A DIMENSIONS INCHES MILLIMETERS (.205) (5.20 .134 3.40 E .201 5.10 F .101 2.56 .118 3.00 P ...

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