SC4212B Datasheet, PDF (1/11 Pages) Semtech Corporation – Very Low Input /Very Low Dropout 1 Amp Regulator

POWER MANAGEMENT
Features
 Input Voltage Range from 1.6V to 6.0V
 150mV Maximum Dropout @ 1A
 Adjustable Output from 0.5V with ± 1% Accuracy
 12µA Quiescent Current in Shutdown
 Enable Input
 250µs Internal Soft-Start
 Over Current and Over Temperature Protection
 Reverse Blocking from Output to Input
 Full Industrial Temperature Range
 3mm x 3mm x 1mm MLPD-8 Package
 Fully WEEE and RoHS Compliant
Applications
 Telecom and Networking Cards
 Motherboards and Peripheral Cards
 Industrial Applications
 Wireless Infrastructure
 Medical Equipment
SC4212B
Very Low Input /Very Low Dropout
1 Amp Regulator
Description
The SC4212B is a high performance linear voltage regula-
tor designed for applications requiring very low dropout
voltage at load currents up to 1 Ampere. It operates with
VIN as low as 1.6V and up to 6V, making it useful for a wide
range of different applications and rails. The output
voltage is programmable down to 0.5V, set via an external
resistor divider, or to a fixed setting of 0.5V depending
upon how the FB pin is configured.
The SC4212B has an enable pin to further reduce power
dissipation while shut down. Protection features include
over current protection, over temperature protection and
reverse blocking from output to input. The SC4212B is
available in a 3mm x 3mm MLPD-8 package.
Typical Application Circuit
V IN
EN
C₁
SC4212B
V IN
VO
EN
FB
GND
V O = 0 .5 V
VO
C₂
R₂
V IN
EN
C₁
SC4212B
V IN
VO
EN
FB
GND
VO = ^0.5(R1+R2)
R2
VO
R₁
C₃
C₂
R₂
* C₃ is a placeholder
Rev. 2.0
© 2015 Semtech Corporation