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http://www.union-ic.com Rev.05 Dec.2013 1 / 10
UM142xx
300mA, Low Consumption, Wide Input Voltage Linear Regulator
UM142xxS SOT23-3
UM142xxY SOT89-3
UM142xxB SOT89-3
General Description
The UM142xx series are a group of positive voltage output, high precise, high PSRR and low
power consumption voltage regulator. The output voltages are selectable in 100mV steps within a
range of 2.5V to 5V. It also can be customized on command.
The UM142xx series have excellent load and line transient response and good temperature
characteristics, which can assure the stability of chip and power system.
The UM142xx series are available in a low profile SOT23-3& SOT89-3 package, which are lead
(Pb)-free.
Applications
Features
Reference Voltage Source
Battery Powered equipment
Hand-Hold equipment
Wireless LAN
GPS Receivers
Low Quiescent Current: 8μA at 5V
High PSRR: 60dB range to 10KHz
Low Output Noise: 44μV
RMS
Low Dropout: 270mV at 150mA load
Low Temperature Coefficient: ±100ppm/℃
Excellent Line Regulation: 0.05%/V
Pin Configurations Top View
UM142xxS
M: Month Code
SOT23-3
