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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?
UM1461Y-xx 300mA, Low Consumption, Wide Input Voltage Linear Regulator ACTIVE High Input Voltage LDO 1 Fixed Output 300 0 24 2.5 5 Yes No 5/SOT89
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Product Description
 
The UM1461 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 UM1461 series have very low power consumption (IQ=3.5μA) which can greatly extend battery life.
The UM1461 series are available in low profile SOT23-5 & SOT89-5 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  

                
                             UM1461Y-xx
 
Ordering Information
 

 
Marking Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1461Y-25
2.5V
SOT89-5
1461Y25
1000pcs/7Inch
Tape & Reel
UM1461Y-26
2.6V
1461Y26
UM1461Y-27
2.7V
1461Y27
UM1461Y-28
2.8V
1461Y28
UM1461Y-29
2.9V
1461Y29
UM1461Y-30
3.0V
1461Y30
UM1461Y-31
3.1V
1461Y31
UM1461Y-32
3.2V
1461Y32
UM1461Y-33
3.3V
1461Y33
UM1461Y-34
3.4V
1461Y34
UM1461Y-35
3.5V
1461Y35
UM1461Y-36
3.6V
1461Y36
UM1461Y-37
3.7V
1461Y37
UM1461Y-38
3.8V
1461Y38
UM1461Y-39
3.9V
1461Y39
UM1461Y-40
4.0V
1461Y40
UM1461Y-41
4.1V
1461Y41
UM1461Y-42
4.2V
1461Y42
UM1461Y-43
4.3V
1461Y43
UM1461Y-44
4.4V
1461Y44
UM1461Y-45
4.5V
1461Y45
UM1461Y-46
4.6V
1461Y46
UM1461Y-47
4.7V
1461Y47
UM1461Y-48
4.8V
1461Y48
UM1461Y-49
4.9V
1461Y49
UM1461Y-50
5.0V
1461Y50
 
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