标题: TC1070/1071/1187 Data Sheet [打印本页] 作者: admin 时间: 2010-4-17 13:57 标题: TC1070/1071/1187 Data Sheet TC1070/1071/1187 Data Sheet
The TC1070, TC1071, and TC1187 are adjustable LDOs designed to supersede a variety of older (bipolar) voltage regulators. Total supply current is typically 50µA at full load, 20 to 60 times lower than in bipolar regulators! The devices’ key features include ultra low noise operation, very low dropout voltage — typically 85mV (TC1070); 180mV (TC1071); and 270mV (TC1187) at full load, and fast response to step changes in load. Supply current is reduced to 0.5 µA (max) when the shutdown input is low. The devices incorporate both over-temperature and over-current protection. Output voltage is programmed with a simple resistor divider from VOUT to ADJ to GND. The TC1070, TC1071, and TC1187 are stable with an output capacitor of only 1µF and have a maximum output current of 50mA, 100mA, and 150mA, respectively. For higher output versions, please see the TC1174 (IOUT = 300mA) data sheet.
Parameter Name Value
Max Input Voltage 6
Output Voltage (v) 1.20 --- 5.5
Typical Active Current (µA) 50
Typical Dropout Voltage @ Max. lout (mV) 85
Output Capacitor Type Aluminum/Tantalum
Output Current (mA) 50
Features
Low Ground Current for Longer Battery Life
Adjustable Output Voltage
Very Low Dropout Voltage
Choice of 50mA, 100mA, 150mA Output (TC1070, TC1071, TC1187, Respectively)
Power-Saving Shutdown Mode
Over-Current and Over-Tempeature Protection
Pin Compatible with Bipolar Regulators
