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UM1451Y-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?
UM1451Y-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 
 

                
                             UM1451Y-xx
 
Ordering Information
 

 
Marking Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1451Y-25
2.5V
SOT89-3
1451Y25
1000pcs/7Inch
Tape & Reel
UM1451Y-26
2.6V
1451Y26
UM1451Y-27
2.7V
1451Y27
UM1451Y-28
2.8V
1451Y28
UM1451Y-29
2.9V
1451Y29
UM1451Y-30
3.0V
1451Y30
UM1451Y-31
3.1V
1451Y31
UM1451Y-32
3.2V
1451Y32
UM1451Y-33
3.3V
1451Y33
UM1451Y-34
3.4V
1451Y34
UM1451Y-35
3.5V
1451Y35
UM1451Y-36
3.6V
1451Y36
UM1451Y-37
3.7V
1451Y37
UM1451Y-38
3.8V
1451Y38
UM1451Y-39
3.9V
1451Y39
UM1451Y-40
4.0V
1451Y40
UM1451Y-41
4.1V
1451Y41
UM1451Y-42
4.2V
1451Y42
UM1451Y-43
4.3V
1451Y43
UM1451Y-44
4.4V
1451Y44
UM1451Y-45
4.5V
1451Y45
UM1451Y-46
4.6V
1451Y46
UM1451Y-47
4.7V
1451Y47
UM1451Y-48
4.8V
1451Y48
UM1451Y-49
4.9V
1451Y49
UM1451Y-50
5.0V
1451Y50
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