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UM1451B-xx
300mA,低功耗宽输入电压线性稳压器
Datasheet Reliability Report Package Information Order Sample  
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?
UM1451B-xx 300mA,低功耗宽输入电压线性稳压器 ACTIVE High Input Voltage LDO 1 Fixed Output 300 0 24 2.5 5 No No 3/SOT89
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Product Description
 
The UM1451 series are a group of positive voltage output, high precision and low power consumption voltage regulators. The maximum input voltage is 24V. The output voltages are available in 100mV steps within a range of 2.5V to 5V. It can also be customized on request.
The UM1451 series have very low power consumption (IQ=3.5μA) which can greatly extend battery life.
The UM1451 series are available in low profile SOT23-3 & SOT89-3 packages.
 
Features
 
- Maximum Input Voltage: 24V
- Low Quiescent Current: 3.5μA (Typ.)
- Maximum Output Current: 300mA
- Low Dropout:
  250mV@100mA (VOUT=3.3V)
  500mV@200mA (VOUT=3.3V)
- Low Temperature Coefficient: ±150ppm/°C
- Output Current Limit:
  400mA@ VOUT=3.3V
 
Typical Application Circuit

 
Note 1: Input Capacitor (CIN=1μF) is recommended in all applications.
Note 2: Output Capacitor (COUT=4.7μF/6.8μF) is recommended in all applications to assure the stability of circuit. 1μF Tantalum capacitor or 6.8μF ceramic capacitor is recommended.
 
Applications
 
- Battery-Powered Equipment
- Power Management of MP3, PDA, DSC, Mouse, PS2 Games
- Reference Voltage Source
- Hand-Hold Equipment

Pin Configurations  

                
                           UM1451B-xx
 
Ordering Information
 

 
Marking Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1451B-25
2.5V
SOT89-3
1451B25
1000pcs/7Inch
Tape & Reel
UM1451B-26
2.6V
1451B26
UM1451B-27
2.7V
1451B27
UM1451B-28
2.8V
1451B28
UM1451B-29
2.9V
1451B29
UM1451B-30
3.0V
1451B30
UM1451B-31
3.1V
1451B31
UM1451B-32
3.2V
1451B32
UM1451B-33
3.3V
1451B33
UM1451B-34
3.4V
1451B34
UM1451B-35
3.5V
1451B35
UM1451B-36
3.6V
1451B36
UM1451B-37
3.7V
1451B37
UM1451B-38
3.8V
1451B38
UM1451B-39
3.9V
1451B39
UM1451B-40
4.0V
1451B40
UM1451B-41
4.1V
1451B41
UM1451B-42
4.2V
1451B42
UM1451B-43
4.3V
1451B43
UM1451B-44
4.4V
1451B44
UM1451B-45
4.5V
1451B45
UM1451B-46
4.6V
1451B46
UM1451B-47
4.7V
1451B47
UM1451B-48
4.8V
1451B48
UM1451B-49
4.9V
1451B49
UM1451B-50
5.0V
1451B50
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