Document
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
z Reference Voltage Source z Battery Powered Equipment z Hand-Hold Equipment z Wireless LAN z GPS Receivers
z Low Quiescent Current: 8μA at 5V z High PSRR: 60dB Range to 10kHz z Low Output Noise: 44μVRMS z Low Dropout: 270mV at 150mA Load z Low Temperature Coefficient: ±100ppm/°C z Excellent Line Regulation: 0.05%/V
Pin Configurations
Top View
3
1
2
M: Month Code UM142xxS SOT23-3
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1/10
GND 1
VDD 2
VDD
VOUT 3 TAB Connected to Pin2
UM142xx
M: Month Code UM142xxY SOT89-3
TAB Connected to Pin2
Ordering Information
M: Month Code UM142xxB SOT89-3
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UM142xx
Marking Information
Part Number
Output Voltage
UM14225S
2.5V
UM14226S
2.6V
UM14227S
2.7V
UM14228S
2.8V
UM14229S
2.9V
UM14230S
3.0V
UM14231S
3.1V
UM14232S
3.2V
UM14233S
3.3V
UM14234S
3.4V
UM14235S
3.5V
UM14236S
3.6V
UM14237S
3.7V
UM14238S
3.8V
UM14239S
3.9V
UM14240S
4.0V
UM14241S
4.1V
UM14242S
4.2V
UM14243S
4.3V
UM14244S
4.4V
UM14245S
4.5V
UM14246S
4.6V
UM14247S
4.7V
UM14248S
4.8V
UM14249S
4.9V
UM14250S
5.0V
UM14225Y
2.5V
UM14226Y
2.6V
UM14227Y
2.7V
UM14228Y
2.8V
UM14229Y
2.9V
UM14230Y
3.0V
UM14231Y
3.1V
UM14232Y
3.2V
UM14233Y
3.3V
UM14234Y
3.4V
UM14235Y
3.5V
UM14236Y
3.6V
UM14237Y
3.7V
UM14238Y
3.8V
UM14239Y
3.9V
UM14240Y
4.0V
UM14241Y
4.1V
UM14242Y
4.2V
UM14243Y
4.3V
UM14244Y
4.4V
UM14245Y
4.5V
UM14246Y
4.6V
UM14247Y
4.7V
UM14248Y
4.8V
UM14249Y
4.9V
UM14250Y
5.0V
Packaging Type
SOT23-3
SOT89-3 (Tab connected to
VDD)
Marking Code 55A 55B 55C 55D 55E 55F 55H 55L 55M 55J 55K 55N 55P 55Q 55R 55S 55T 55Y 55U 55Z 56A 56B 56C 56D 56E 53F 4AA 4AB 4AC 4AD 4AE 4AF 4AH 4AL 4AM 4AJ 4AK 4AN 4AP 4AQ 4AR 4AS 4AT 4AY 4AU 4AZ 4BA 4BB 4BC 4BD 4BE 4BF
Shipping Qty
3000pcs/7Inch Tape & Reel
1000pcs/7Inch Tape & Reel
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UM142xx
Marking Information (Continued)
Part Number UM14225B UM14226B UM14227B UM14228B UM14229B UM14230B UM14231B UM14232B UM14233B UM14234B UM14235B UM14236B UM14237B UM14238B UM14239B UM14240B UM14241B UM14242B UM14243B UM14244B UM14245B UM14246B UM14247B UM14248B UM14249B UM14250B
Output Voltage 2.5V 2.6V 2.7V 2.8V 2.9V 3.0V 3.1V 3.2V 3.3V 3.4V 3.5V 3.6V 3.7V 3.8V 3.9V 4.0V 4.1V 4.2V 4.3V 4.4V 4.5V 4.6V 4.7V 4.8V 4.9V 5.0V
Packaging Type
SOT89-3 (Tab connected
to GND)
Marking Code 4CA 4CB 4CC 4CD 4CE 4CF 4CH 4CL 4CM 4CJ 4CK 4CN 4CP 4CQ 4CR 4CS 4CT 4CY 4CU 4CZ 4DA 4DB 4DC 4DD 4DE 4DF
Shipping Qty
1000pcs/7Inch Tape & Reel
________________________________________________________________________
http://www.union-ic.com Rev.07 May.2016
4/10
UM142xx
Pin Description
Symbol GND VOUT VDD
Ground Voltage Regulated Output Supply Voltage Input
Function
Absolute Maximum Ratings (Note 1)
Symbol
Parameter
Value
Unit
VIN
Max Input Voltage
14
V
PD
Power Dissipation
250
mW
TJ
Operating Junction Temperature
+125
°C
TA
Ambient Temperature
-40 to +85
°C
TSTG Storage Temperature Range
-40 to +150
°C
TL
Lead Temperature for Soldering 10 Seconds
+260
°C
Note 1: Exposure to absolute maximum rating conditions may affect device reliability.
Recommended Work Condition
Symbol
Parameter
VIN
Max Input Voltage
Value
Unit
12
V
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UM142xx
Electrical Characteristics
(Test conditions: CIN=1.0μF, COUT=1.0μF, TA=25°C, unless otherwise noted)
Symbol VIN
Parameter Input Voltage
VOUT IOUT (Max) (Note 2)
VDROP
△VOUT △VIN·VOUT
△VOUT
Output Voltage Maximum Output
Current Dropout Voltage Output Voltage
Accuracy Line Regulation
Load Regulation
IS △VOUT △T·VOUT
PSRR
Supply Current
Output Voltage Noise
Power Supply Ripple Rejection
Output Noise
Test Conditions
VIN=Set VOUT+1V 1mA≤IOUT≤10mA
VIN -VOUT=1V
IOUT=150mA
IOUT=300mA IOUT=10mA 4V≤VDD≤6V VIN=Set VOUT+1V 1mA≤IOUT≤300mA VIN=Set VOUT+1V VOUT Floating IOUT=10mA f=100Hz, Ripple=0.5Vp-p VIN=Set VOUT+1V BW=10Hz~100k.