POWER MANAGEMENT Description
The SC4211 is a high performance positive voltage regulator designed for use in application...
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 ...
