APL5606

APL5606/A Low Dropout 600mA Linear Regulator for DC Fan Control Features General Description Low Dropout Voltage: 220mV (typical) @ 600mA Low Quiescent Current: 140µA Selectable Adjustable/Full Speed Mode O/I Voltage Ratio in Adjustable Mode : 1.6 times Stable with Low ESR Ceramic Capacitors Over-Temperature Protection Current-Limit Protection with Foldback Current Internal Soft-Start SOP-8 Package Lead Free and Green Devices Available (RoHS Compliant) Simplified Application Circuit VIN C1 1µF Adjustable mode Full speed mode VIN VOUT APL5606/A FSM GND VSE T VOUT C2 2.2µF Speed control voltage (VSET) The APL5606/A is a low quiescent current and low dropout linear regulator which is designed with a P-channel pass MOSFET to power a DC fan and delivers output current up to 600mA. In adjustable mode, the output voltage follows the 1.6 times of the voltage on VSET pin to dynamically adjust the DC fan speed; in full speed mode, the internal P-channel MOSFET fully turns on to drive the DC fan with maximum supply voltage for full speed operation.The APL5606/A with low 140µA quiescent current is ideal for battery-powered system appliances. It is also stable with a low-ESR ceramic output capacitor ( 2.2µF typical) to reduce total cost and to minimize the PCB area required. The APL5606/A features current-limit (with foldback current) and over-temperature protections to protect the device against current over-loads and overtemperature. The APL5606/A is av...