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LN1121
■ General Description
The LN1121 series are precise, low power consumption, high voltage; positive voltage regulators manufactured using CMOS and laser trimming technologies. The series provides large currents with a significantly small dropout voltage. The LN1121 consists of a current limiter circuit, a driver transistor, a precision reference voltage and an error correction circuit. The series is compatible with low ESR ceramic capacitors. The current limiter's feedback circuit also operates as a short protect for the output current limiter and the output pin. Output voltage can be set internally by laser trimming technologies. It is selectable in 100mV increments within a range of 1.2V to 5.0V. SOT-89-3L, SOT-23-3L, SOT-353 and SOT-23-3B packages are available.
■ Features
Output Voltage Range: 1.2V to 5.0V (selectable in 100mV steps)
Highly Accurate: 2%
Dropout Voltage: 160mV @ 100mA (3.0V type)
Low Power Consumption: 1μA (TYP.)
Maximum Output Current : 250mA (Vin≥Vout+1V)
Internal protector: current limiter and short protector
Small packages
■ Applications
Battery powered equipment Reference voltage sources Cameras, Video cameras Mobile phones Communication tools
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