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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-00 300mA, Low Consumption, Wide Input Voltage Linear Regulator ACTIVE High Input Voltage LDO 1 Adjustable 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.
- 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.
- Battery-Powered Equipment
- Power Management of MP3, PDA, DSC, Mouse, PS2 Games
- Reference Voltage Source
- Hand-Hold Equipment

Pin Configurations  

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