描述 Description

The LX13044 operates as a Current?Mode PWM Buck regulator that?switches to PFM mode with light?loads. The entire regulator function is?implemented with minimal external?components.?The LX13044 responds quickly to?dynamic load changes using a high?bandwidth error amplifier and internal?compensation. Tight output voltage?regulation is maintained with the?compensated 800mV, ±2% reference?(line and temp regulation). With two?external resistors the output voltage is?easily programmed, from 800mV to?90% of VIN.?The regulator is capable of?providing an output load current of?1.0A and has no minimum load?current requirement for stable?operation. Current limit is cycle-bycycle?to protect the switch. Power?conversion efficiency is maximized?with low regulator IQ and PFM mode?of operation.?The LX13044 operational range?covers 4.0V to 6.0V, features include:?power on delay; soft start to limit?inrush currents; and thermal shutdown?during fault conditions.?The 6-pin TSOT package provides a?small form factor with excellent power?dissipation capability.??ROHS, PB Free-->??ROHS