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SC4211

Semtech Corporation
Part Number SC4211
Manufacturer Semtech Corporation
Description Very Low Input /Very Low Dropout 1 Amp Regulator
Published Dec 13, 2005
Detailed Description POWER MANAGEMENT Description The SC4211 is a high performance positive voltage regulator designed for use in application...
Datasheet PDF File SC4211 PDF File

SC4211
SC4211

Overview
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 features ultra low dropout, ideal for applications where Vout is very close to Vin.
Additionally, the SC4211 has an enable pin to further reduce power dissipation while shutdown.
The SC4211 provides excellent regulation over variations 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 external divider or to 0.
5V depending on how the FB pin is configured.
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 SC4211 Applications ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ Telecom/Networking cards Motherboards/Peripheral cards Industrial Applications Wireless infrastructure Set top boxes Medical equipment Notebook computers Battery powered systems Typical Application Circuits SC4211 VIN ENABLE 3 2 1 VIN EN NC VO FB GND 6 7 8 VO R1 VO C2 = 0.
5 (R1 + R2) R2 Volts w C1 U1 w R2 w .
D at aS SC4211 4 NC VIN EN NC NC VO FB GND 5 6 7 8 VIN 3 2 1 VO = 0.
5V he ENABLE et C1 U1 C2 4U .
c Revision October 18, 2004 om 1 www.
semtech.
com www.
DataSheet4U.
com 4 NC NC 5 SC4211 POWER MANAGEMENT Absolute Maximum Ratings Exceeding the specifications below may result in permanent damage to the device, or device malfunction.
Operation outside of the parameters specified in the Electrical Characteristics section is not implied.
Parameter Vin, EN, Vo, FB Absolute Voltage Power Dissipation Ther...


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