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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?
UM1431Y-xx 30V Input, 100mA Current Limit, Micropower Linear Regulator ACTIVE High Input Voltage LDO 1 Fixed Output 100 3.6 30 2 6 No No 3/SOT89 Y
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Product Description 
 
The UM1431/1441 series are high input voltage low quiescent current regulators implemented in CMOS technology. It can accept input voltage as high as 30V with 100mA output current limit. The output voltages are selectable in 100mV steps within a range of 2.0V to 6.0V. 100mA output current limiting is built in to provide protection for the regulators against fault conditions. CMOS technology ensures low voltage drop and low quiescent current.
With a chip enable control pin, the UM1441 can turn off the output and greatly reduce the power consumption by setting the enable pin low.
The UM1431 is available in SOT23-3, SOT23-5 and SOT89-3 packages. The UM1441 is available in SOT23-5 and SOT89-5 packages.
 
Features
 
- Input Voltage Range: 3.6V to 30V
- 100mA Output Current Limit
- ±3% Voltage Accuracy at 30mA
- Low Dropout Voltage:
  250mV (Typical) at 30mA
- Low Quiescent Current:
  5.8μA@VIN=30V (Typical)
- Available Fixed Output Voltage from 2.0V to 6.0V with 0.1V Step
- With Enable Control (UM1441S-xx, UM1441Y-xx)
- Output Current Limit
- UM1431: Low Profile SOT23-3, SOT23-5 and SOT89-3 Packages
  UM1441: Low Profile SOT23-5 and SOT89-5 Packages
 
Typical Application Circuit
 

 
Applications
 
- Communication Equipment
- Audio/Video Equipment
- Industrial Control
- Infotainment 

Pin Configurations  
                
             UM1431Y-xx
 
Naming Information

 
 
Ordering Information
 
Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1431Y-20
2.0V
SOT89-3
(Tab connected to VIN)
4RA
1000pcs/7Inch
Tape & Reel
UM1431Y-21
2.1V
4RB
UM1431Y-22
2.2V
4R2
UM1431Y-23
2.3V
4R3
UM1431Y-24
2.4V
4R4
UM1431Y-25
2.5V
4R5
UM1431Y-26
2.6V
4R6
UM1431Y-27
2.7V
4R7
UM1431Y-28
2.8V
4R8
UM1431Y-29
2.9V
4R9
UM1431Y-30
3.0V
4RC
UM1431Y-31
3.1V
4RD
UM1431Y-32
3.2V
4RE
UM1431Y-33
3.3V
4RF
UM1431Y-34
3.4V
4RH
UM1431Y-35
3.5V
4RL
UM1431Y-36
3.6V
4RM
UM1431Y-37
3.7V
4RJ
UM1431Y-38
3.8V
4RK
UM1431Y-39
3.9V
4RN
UM1431Y-40
4.0V
4RP
UM1431Y-41
4.1V
4RQ
UM1431Y-42
4.2V
4RR
UM1431Y-43
4.3V
4RS
UM1431Y-44
4.4V
4RT
UM1431Y-45
4.5V
4RY
UM1431Y-46
4.6V
4RU
UM1431Y-47
4.7V
4RZ
UM1431Y-48
4.8V
4FF
UM1431Y-49
4.9V
4FH
UM1431Y-50
5.0V
4FL
UM1431Y-51
5.1V
4FM
UM1431Y-52
5.2V
4FJ
UM1431Y-53
5.3V
4FK
UM1431Y-54
5.4V
4FN
UM1431Y-55
5.5V
4FP
UM1431Y-56
5.6V
4FQ
UM1431Y-57
5.7V
4FR
UM1431Y-58
5.8V
4FS
UM1431Y-59
5.9V
4FT
UM1431Y-60
6.0V
4FY
 
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