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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?
UM1450S-xx 250mA, Low Consumption, Wide Input Voltage Linear Regulator ACTIVE High Input Voltage LDO 1 Fixed Output 250 0 16 2.5 5 No No 3/SOT23 Y
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Product Description
 
The UM1450 series are a group of positive voltage output, high precise and low power consumption voltage regulators. The maximum input voltage is 16V. The output voltages are selectable in 100mV steps within a range of 2.5V to 5V. It can also be customized on command.
The UM1450 series have very low power consumption (IQ=2μA) which can greatly improve natural life of batteries.
The UM1450 series are available in a low profile SOT23-3 & SOT89-3 packages, which are lead (Pb)-free.
 
Features
 
- Maximum Input Voltage: 16V
- Low Quiescent Current: 2μA (Typ.)
- Maximum Output Current: 250mA
- Low Dropout:
  210mV@100mA (VOUT=3.3V)
  420mV@200mA (VOUT=3.3V)
- Low Temperature Coefficient: ±150ppm/°C
- Output Current Limit:
  330mA@ VOUT=3.3V
 
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
 
- Battery-Powered Equipment
- Power Management of MP3, PDA, DSC, Mouse, PS2 Games
- Reference Voltage Source
- Hand-Hold Equipment

Pin Configurations  

                
                                    UM1450S-xx
 
Ordering Information
 

 
Marking Information

Part Number
Output Voltage
Packaging Type
Marking Code
Shipping Qty
UM1450S-25
2.5V
SOT23-3
5LA
3000pcs/7Inch
Tape & Reel
UM1450S-26
2.6V
5LB
UM1450S-27
2.7V
5LC
UM1450S-28
2.8V
5LD
UM1450S-29
2.9V
5LE
UM1450S-30
3.0V
5LF
UM1450S-31
3.1V
5LH
UM1450S-32
3.2V
5LL
UM1450S-33
3.3V
5LM
UM1450S-34
3.4V
5LJ
UM1450S-35
3.5V
5LK
UM1450S-36
3.6V
5LN
UM1450S-37
3.7V
5LP
UM1450S-38
3.8V
5LQ
UM1450S-39
3.9V
5LR
UM1450S-40
4.0V
5LS
UM1450S-41
4.1V
5LT
UM1450S-42
4.2V
5LY
UM1450S-43
4.3V
5LU
UM1450S-44
4.4V
5LZ
UM1450S-45
4.5V
5M5
UM1450S-46
4.6V
5M6
UM1450S-47
4.7V
5M7
UM1450S-48
4.8V
5M8
UM1450S-49
4.9V
5M9
UM1450S-50
5.0V
5MA
 
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