CM1581

www.DataSheet4U.com CM1581 5A LOW DROPOUT VOLTAGE REGULATOR GENERAL DESCRIPTION The CM1581 is a high performance low dropout regulator rated for 5A output current with fixed 1.8V/2.5V/3.3V/5.0V and adjustable output. It is designed for use in applications requiring low dropout characteristics over the rated current range. When the second low-current input voltage is applied, the dropout voltage can be as low as 100mV at light loads and up to 500mV at maximum output current. On chip trimming adjusts the reference voltage to 1%. These features are ideal for low voltage microprocessor applications requiring a regulated 1.8V to 3.6V power supply. In addition, the CM1581 provides the device protections including over current and thermal shutdown. The CM1581 series are ideal to the next generation microprocessor on motherboards where both 5V and 3.3V are available. ! ! ! ! ! ! FEATURES ! Input-Output differential of typical 500mV at 5A and low quiescent current Output Current is excess of 5A Remote sense pin available Reverse battery protection Short Circuit Protection Internal Thermal Overload Protection 5L TO-220 and 5L TO-263 package available APPLICATIONS ! ! ! Power Supplies Computer Add-On Cards Other Applications Requiring Low Dropout Voltage Over Rated Current PIN CONFIGURATION TO-220 Top View TO-263 Top View V PO W ER V CONTROL GND/ADJ V CONTROL SENSE V POWER 5 4 3 2 1 V OUT G N D /A D J SENSE V OUT 1 2 3 4 5 2002/02/05 Preliminary Rev. 1 Champion Microelectro...