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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?
UM142xxS 12V,300mA, Low Consumption Linear Regulator ACTIVE High Input Voltage LDO 1 Fixed Output 300 2.5 12 2.5 5 No No 3/SOT23 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 


                                     UM142xxS 
                
Ordering Information


 
Marking Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM14225S
2.5V
SOT23-3
55A
3000pcs/7Inch
Tape & Reel
UM14226S
2.6V
55B
UM14227S
2.7V
55C
UM14228S
2.8V
55D
UM14229S
2.9V
55E
UM14230S
3.0V
55F
UM14231S
3.1V
55H
UM14232S
3.2V
55L
UM14233S
3.3V
55M
UM14234S
3.4V
55J
UM14235S
3.5V
55K
UM14236S
3.6V
55N
UM14237S
3.7V
55P
UM14238S
3.8V
55Q
UM14239S
3.9V
55R
UM14240S
4.0V
55S
UM14241S
4.1V
55T
UM14242S
4.2V
55Y
UM14243S
4.3V
55U
UM14244S
4.4V
55Z
UM14245S
4.5V
56A
UM14246S
4.6V
56B
UM14247S
4.7V
56C
UM14248S
4.8V
56D
UM14249S
4.9V
56E
UM14250S
5.0V
53F
 
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