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SC4215A

Semtech Corporation
Part Number SC4215A
Manufacturer Semtech Corporation
Description Very Low Input / Very Low Dropout 2 Amp Regulator With Enable
Published Dec 13, 2005
Detailed Description POWER MANAGEMENT Description The SC4215A is a high performance positive voltage regulator designed for use in applicatio...
Datasheet PDF File SC4215A PDF File

SC4215A
SC4215A


Overview
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 amp.
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 applications where Vout is very close to Vin.
Additionally, the SC4215A has an enable pin to further reduce power dissipation while shutdown.
The SC4215A provides excellent regulation over variations in line, load and temperature.
The SC4215A 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 2 Amp Regulator With Enable Features ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ Input Voltage as low as 1.
4V 500mV dropout @ 2A 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 SC4215A 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 ENABLE 2 1 R1 VO C2 = 0.
5 (R1 + R2) R2 Volts SC4215A C1 w R2 w w .
D VIN ENABLE at aS 4 3 2 1 U1 NC VIN EN NC VO FB GND 5 6 7 8 4 NC VIN EN NC U1 NC VO FB GND 5 6 7 8 VO VIN ENABLE 3 2 1 VO C1 he NC VO = 0.
5V VO = 1V SC4215A SC4215A C2 C1 C2 et 4U .
c Revision April 29, 2005 om 1 www.
semtech.
com www.
DataSheet4U.
com VIN 3 VO SC4215A 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...


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