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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?
UM142xxB 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
                              UM142xxB
 
Ordering Information


 
Marking Information
 
 
Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM14225B
2.5V
SOT89-3
(Tab connected to GND)
4CA
1000pcs/7Inch
Tape & Reel
UM14226B
2.6V
4CB
UM14227B
2.7V
4CC
UM14228B
2.8V
4CD
UM14229B
2.9V
4CE
UM14230B
3.0V
4CF
UM14231B
3.1V
4CH
UM14232B
3.2V
4CL
UM14233B
3.3V
4CM
UM14234B
3.4V
4CJ
UM14235B
3.5V
4CK
UM14236B
3.6V
4CN
UM14237B
3.7V
4CP
UM14238B
3.8V
4CQ
UM14239B
3.9V
4CR
UM14240B
4.0V
4CS
UM14241B
4.1V
4CT
UM14242B
4.2V
4CY
UM14243B
4.3V
4CU
UM14244B
4.4V
4CZ
UM14245B
4.5V
4DA
UM14246B
4.6V
4DB
UM14247B
4.7V
4DC
UM14248B
4.8V
4DD
UM14249B
4.9V
4DE
UM14250B
5.0V
4DF
 
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