CAT6218

CAT6218 LDO Regulator - CMOS 300 mA Description The CAT6218 is a 300 mA CMOS low dropout regulator that provides fast response time during load current and line voltage changes. The quick−start feature allows the use of an external bypass capacitor to reduce the overall output noise without affecting the turn−on time of just 150 ms. With zero shutdown current and low ground current of 55 mA typical, the CAT6218 is ideal for battery−operated devices with supply voltages from 2.3 V to 5.5 V. An internal under voltage lockout circuit disables the output at supply voltages under 2.1 V typical. The CAT6218 offers 1% initial accuracy and low dropout voltage, 180 mV typical at 300 mA. Stable operation is provided with a small value ceramic capacitor, reducing required board space and component cost. Other features include fold−back current limit and thermal protection. The device is available in the low profile (1 mm max height) 5−lead thin SOT23 package. Features Guaranteed 300 mA Output Current Low Dropout Voltage of 180 mV Typical at 300 mA Stable with 1 mF Ceramic Output Capacitor External 10 nF Bypass Capacitor for Low Noise Quick−start Feature No−load Ground Current of 55 mA Typical Full−load Ground Current of 80 mA Typical ±1.0% Initial Accuracy (VOUT ≥ 2.0 V) ±2.0% Accuracy Over Temperature (VOUT ≥ 2.0 V) “Zero” Current Shutdown Mode Fold−back Current Limit and Under−voltage Lockout Thermal Protection Thin SOT23−5 Package These Devices are Pb−Fre...