CAT6221

www.DataSheet4U.com CAT6221 300mA CMOS Dual LDO Regulator FEATURES „ Two outputs with guaranteed 300mA peak output current „ Low dropout voltages of 210mV typical at 300mA „ Stable with ceramic output capacitors „ Independent enable pins „ Under voltage lockout „ No-load ground current of 100μA typical „ Full-load ground current of 160μA typical „ ±1.0% output voltage initial accuracy „ ±2.0% accuracy over temperature „ “Zero” current shutdown mode „ Fold-back current limit and thermal protection „ TSOT-23 6-lead, 0.8mm height package DESCRIPTION The 300mA CMOS Dual LDO CAT6221 combines in a single TSOT-23 6-lead package two low dropout regulators (LDO), each with its own enable pin. The regulator outputs drive loads up to 300mA. By design, the dual LDO provides fast response time during load current and line voltage changes. Each LDO is optimized for low noise and high crosstalk isolation. With zero shut down current and a low quiescent current of 100μA, the dual LDO is ideal for battery-operated devices with supply voltage from 2.3V to 5.5V. The dual LDO offers 1% initial accuracy and very low dropout voltage, typical 210mV at 300mA. Stable operation is provided with small 1μF ceramic output capacitors, reducing required board space and component cost. Other features include fold-back current limit and thermal protection. The dual LDO is available in the tiny 6-lead TSOT-23 package with a maximum height of 0.8mm. APPLICATIONS „ Cellular phones „ Battery-powered devices ...