sc4215h Semtech Corporation, sc4215h Datasheet

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sc4215h

Manufacturer Part Number
sc4215h
Description
Very Low Input /very Low Dropout 2 Amp Regulator With Enable
Manufacturer
Semtech Corporation
Datasheet

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POWER MANAGEMENT
Features
Applications
Typical Application Circuit
January 28, 2009
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
© 2009 Semtech Corporation
Very Low Input /Very Low Dropout
Description
The SC4215H is a high performance positive voltage regu-
lator 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 SC4215H fea-
tures ultra low dropout, ideal for applications where Vout
is very close to Vin. Additionally, the SC4215H has an
enable pin to further reduce power dissipation while shut-
down. The SC4215H provides excellent regulation over
variations in line, load and temperature.
The SC4215H is available in the SOIC-8-EDP (Exposed Die
Pad) package. The output voltage can be set via an exter-
nal divider or to a xed setting of 0.5V depending on how
the FB pin is con gured.
2 Amp Regulator With Enable
SC4215H
1

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sc4215h Summary of contents

Page 1

... It operates with a Vin as low as 1.4V, with output voltage programmable as low as 0.5V. The SC4215H fea- tures ultra low dropout, ideal for applications where Vout is very close to Vin. Additionally, the SC4215H has an enable pin to further reduce power dissipation while shut- down. The SC4215H provides excellent regulation over variations in line, load and temperature ...

Page 2

... Pin Con guration Marking Information Ordering Information Device (1)(2) SC4215HSTRT SC4215HEVB Evaluation Board Notes: (1) Available in tape and reel only. A reel contains 2,500 devices. (2) Available in lead-free package only. Device is WEEE and RoHS compliant. SC4215H Package SOIC-8-EDP 2 ...

Page 3

... 0.5V 10mA 1.8V 0.8A, 0°C ≤ 1.40V ≤ V ≤ 6.0V =10mA (LINE =10mA to 2A (LOAD) O SC4215H (2) (2) (°C/ 5.5 Min Typ 10 - ≤85° 10mA -3% 0.2 0.5 < 6.0 IN < +105 A < +125 J (°C/ Max Units µ ...

Page 4

... V IN Min Typ 1.4V ≤ V < 1. 1.6V ≤ V ≤ 6.0V IN 1.4V ≤ V < 1.6V 200 IN 1.6V ≤ V ≤ 6.0V IN 1.4V ≤ V < 1.6V 300 IN 1.6V ≤ V ≤ 6.0V IN 2.1 3 0.495 , I =10mA 0.5 O 0.490 80 1.5 1.6 160 10 +0.8V. O SC4215H Max Units 400 200 500 mV 300 600 400 10 µA 4.4 A 0.505 V 0.510 200 nA 10 µ ...

Page 5

... Typical Characteristics SC4215H 5 ...

Page 6

... Application Circuits on page 1): Reference ground. The GND pin and the exposed die pad must be connected together at the IC pin. No Connection. Pad for heatsinking purposes. Connect to ground plane using multiple vias. SC4215H 6 ...

Page 7

... Component Selection Input capacitor: A large bulk capacitance ≥ 10µF/A (output load) should be closely placed to the input supply pin of the SC4215H to ensure that Vin does not sag below 1.4V. Also a minimum of 4.7µF ceramic capacitor is recom- mended 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

... Outline Drawing — SOIC-8-EDP-2 SC4215H 8 ...

Page 9

... Land Pattern — SOIC-8-EDP-2 Contact Information Semtech Corporation Power Management Products Division 200 Flynn Road, Camarillo, CA 93012 Phone: (805) 498-2111 Fax: (805) 498-3804 www.semtech.com SC4215H 9 ...

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