TC1265

TC1265 800 mA Fixed-Output CMOS LDO with Shutdown Features Very Low Dropout Voltage 800 mA Output Current High Output Voltage Accuracy Standard or Custom Output Voltages Overcurrent and Overtemperature Protection SHDN Input for Active Power Management ERROR Output Can Be Used as a Low Battery Detector (SOIC only) Description The TC1265 is a fixed-output, high-accuracy (typically ±0.5%) CMOS low dropout regulator. Designed specifically for battery-operated systems, the TC1265’s CMOS construction eliminates wasted ground current, significantly extending battery life. Total supply current is typically 80 µA at full load (20 to 60 times lower than in bipolar regulators). Key features of the TC1265 include ultra low noise operation, very low dropout voltage (typically 450 mV at full load) and fast response to step changes in load. The TC1265 incorporates both overtemperature and overcurrent protection. The TC1265 is stable with an output capacitor of only 1 µF and has a maximum output current of 800 mA. It is available in 8-Pin SOIC, 5-Pin TO-220 and 5-Pin DDPAK packages. Applications Battery-operated Systems Portable Computers Medical Instruments Instrumentation Cellular/GSM/PHS Phones Linear Post-Regulators for SMPS Pagers Package Type 5-Pin DDPAK Front View Tab Is GND 5-Pin TO-220 Tab Is GND Typical Application TC1265 VIN VIN VOUT TC1265 + VOUT C1 1 µF SHDN BYP SHDN GND VIN VOUT BYP SHDN GND VIN VOUT 1 2 3 4 5 1 2 3 4 5 TC1265 GND SHDN 8-Pi...