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L1131C Datasheet


The UTC L1131C is a typical LDO (linear regulator) with the
features of High output voltage accuracy, low supply current, low
ON-resistance, and high ripple rejection.
    During normal operation of UTC L1131C, the dropout voltage is
very low, and the response of line transient and load transient are very well.
Inside each UTC L1131C, there’re many functions which can be
seen in the block figure, for example, a voltage reference unit, an
error amplifier, resistor-net for voltage setting, a current limit circuit,
and a chip enable circuit.  
The UTC L1131C can be used as an ideal of power source for
hand-held communication equipment, such as cameras, VCRs,
camcorders and other battery-powered equipment.

* Ultra Supply Current: 75µA(typ.)
* Standby Mode: 0.1µA(typ.)
* Very Low Dropout Voltage: 0.28V(typ.) @IOUT=150mA, VOUT=2.5V
* Ripple Rejection: 70dB(typ.)@f=1kHz  60dB(typ.)@f=10kHz   
* Temperature-Drift Coefficient   of Output Voltage: ±100ppm/°C(typ.)
* Well Line Regulation: 0.02%/V(typ.)
* Output Voltage Accuracy: ±2.0%(typ.)
* Internal Fold Back Protection Circuit
* CIN=COUT=1µF or more (Ceramic capacitors) are recommended to be used with this IC
* Halogen Free
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