SS6577 Datasheet - Silicon Standard

SS6577, External NMOS Step-Down PWM Controller

SS6577 External NMOS Step-Down PWM Controller

Features

* N-Channel MOSFET Drive Operating input voltage from 4.5V to 24V Wide output Range : 0.8V to 20V Reference: ±1.5% 0.8V Reference Low dropout operation : 95% duty cycle Fixed constant frequency - 500kHz Low standby current, I Q typically 720µA Logic-control micropower shutdown Output overvoltage prote

Applications

* LCD Monitor Palmtop Computers, PDAs Wireless Modems On-Card Switching Regulators DC Power Distribution Systems Rev.1.02 3/26/2004 www. SiliconStandard. com 1 of 14 www. DataSheet. in SS6577 TYPICAL APPLICATION CIRCUIT 1 2 C5 330pF R3 24k 3 4 8 7 6 5 C3 0.1µF D1 SL43 1000pF C1 C2 0.1µF RS 33m + VIN

SS6577_SiliconStandard.pdf