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Key Specifications
Part Number Description Status SubFamily Regulated Outputs(.) Output Options Iout (Max)(mA) Vin (Min)(V) Vin (Max)(V) Fixed Output Options(V) Vout (Min)(V) Vout (Max)(V) Enable Under Voltage Lockout Pin/Package EV Kit Available?
UM142xxY 12V,300mA, Low Consumption Linear Regulator ACTIVE High Input Voltage LDO 1 Fixed Output 300 2.5 12 2.5 5 No No 3/SOT89 Y
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Product 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.
 
Features
 
- Low Quiescent Current: 8μA at 5V
- High PSRR: 60dB Range to 10kHz
- Low Output Noise: 44μVRMS
- Low Dropout: 270mV at 150mA Load
- Low Temperature Coefficient: ±100ppm/°C
- Excellent Line Regulation: 0.05%/V
 
Typical Application Circuit
 


Note 1: Input Capacitor (CIN=1μF) is recommended in all applications.
Note 2: Output Capacitor (COUT=1μF/6.8μF) is recommended in all applications to assure the stability of circuit. 1μF Tantalum capacitor or 6.8μF ceramic capacitor is recommended.
 
Applications
 
- Reference Voltage Source
- Battery-Powered Equipment
- Hand-Hold Equipment
- Wireless LAN
- GPS Receivers
 
Pin Configurations 


                   TAB Connected to Pin2
                              UM142xxY
                
Ordering Information


 
Marking Information
 
 
Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM14225Y
2.5V
SOT89-3
(Tab connected to VDD)
4AA
1000pcs/7Inch
Tape & Reel
UM14226Y
2.6V
4AB
UM14227Y
2.7V
4AC
UM14228Y
2.8V
4AD
UM14229Y
2.9V
4AE
UM14230Y
3.0V
4AF
UM14231Y
3.1V
4AH
UM14232Y
3.2V
4AL
UM14233Y
3.3V
4AM
UM14234Y
3.4V
4AJ
UM14235Y
3.5V
4AK
UM14236Y
3.6V
4AN
UM14237Y
3.7V
4AP
UM14238Y
3.8V
4AQ
UM14239Y
3.9V
4AR
UM14240Y
4.0V
4AS
UM14241Y
4.1V
4AT
UM14242Y
4.2V
4AY
UM14243Y
4.3V
4AU
UM14244Y
4.4V
4AZ
UM14245Y
4.5V
4BA
UM14246Y
4.6V
4BB
UM14247Y
4.7V
4BC
UM14248Y
4.8V
4BD
UM14249Y
4.9V
4BE
UM14250Y
5.0V
4BF
 
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