UM1431 Datasheet, PDF (1/19 Pages) Union Semiconductor, Inc. – 30V Input, 100mA Current Limit, Micropower Linear Regulator

UM1431/1441
30V Input, 100mA Current Limit, Micropower
Linear Regulator
UM1431S-xx SOT23-3
UM1431S5-xx/UM1441S -xx SOT23-5
UM1431Y-xx/UM1431B-xx SOT89-3
UM1441Y-xx SOT89-5
General Description
The UM1431/1441 series are high input voltage low quiescent current regulators implemented in
CMOS technology. It can accept input voltage as high as 30V with 100mA output current limit.
The output voltages are selectable in 100mV steps within a range of 2.0V to 6.0V. 100mA output
current limiting is built in to provide protection for the regulators against fault conditions. CMOS
technology ensures low voltage drop and low quiescent current.
With a chip enable control pin, the UM1441 can turn off the output and greatly reduce the power
consumption by setting the enable pin low.
The UM1431 is available in SOT23-3, SOT23-5 and SOT89-3 packages. The UM1441 is
available in SOT23-5 and SOT89-5 packages.
Applications
Features
 Communication Equipment
 Audio/Video Equipment
 Industrial Control
 Infotainment
 Input Voltage Range: 3.6V to 30V
 100mA Output Current Limit
 ±3% Voltage Accuracy at 30mA
 Low Dropout Voltage:
250mV (Typical) at 30mA
 Low Quiescent Current:
5.8μA@V_IN=30V (Typical)
 Available Fixed Output Voltage from 2.0V to
6.0V with 0.1V Step
 With Enable Control (UM1441S-xx,
UM1441Y-xx)
 Output Current Limit
 UM1431: Low Profile SOT23-3, SOT23-5
and SOT89-3 Packages
UM1441: Low Profile SOT23-5 and
SOT89-5 Packages
Typical Application Circuit
VIN
VIN
VOUT
1µ F
UM1431
GND
VOUT
10µ F
VIN
VIN
VOUT
1µ F
UM1441
Chip Enable
EN
GND
VOUT
10µ F
________________________________________________________________________
http://www.union-ic.com Rev.01 Apr.2016
1/19