LR9153数据手册UTC中文资料规格书

描述 Description

The UTC LR9153 is a typical LDO (linear regulator) with the

特性 Features

of high output voltage accuracy, low supply current, lowON-resistance, and high ripple rejection.During operation of the UTC LR9153, the dropout voltage isvery low and the response of line transient and load transient arevery well.Internally, there’re many functions of UTC LR9153 which canbe seen in the block figure. There are a voltage reference unit, anerror amplifier, resistor-net for voltage setting, a current limit circuit,and a chip enable circuit in each UTC LR9153.The UTC LR9153 can be used as an ideal of the power supplyfor hand-held communication equipment, such as: power source forportable communication equipment, power source for electricalappliances, for example, cameras, VCRs and camcorders andpower source for battery-powered equipment. FEATURES  Ultra Supply Current: 50μA (Typ.) Standby Mode: 0.1μA (Typ.) Very Low Dropout Voltage: 0.30V (Typ.) @ IOUT =300mA, VOUT =2.85V Well Line Regulation: 0.02%/ V (Typ.)Output Voltage Accuracy: ±2.0% Internal Fold Back Protection Circuit: 80mA (Typ.) (Current at short mode)CIN=COUT=1.0μF or more (Ceramic capacitors) are recommended to be used with this IC