Part # FAN5232 datasheet

Part Manufacturer: Fairchild Semiconductor

Fairchild Semiconductor

Part Description: FAN5232 Adjustable PWM Buck Controller for LCD PCs


Part Details:

www.fairchildsemi.com FAN5232Adjustable PWM Buck Controller for LCD PCs Features Description · Three outputs: Adjustable Buck, 3.3V-Always, The FAN5232 is a high efficiency and high precision DC/DC 5V-Always controller for PCs. It has a synchronous switcher whose · Adjustable synchronous switcher, 5V ­ 80% Vin output can be adjusted from 5V up to 80% of Vin. It also has · 1% internal reference precision two linear regulators for standby, 3.3V and 5V. The PWM · Current mode with voltage feed-forward utilizes both input and output voltage feedback in a · Precision current limit option current-mode control, allowing for fast and stable loop · Charge pump works at all loads response over a wide range of input and output variations. · No shoot-through current Synchronous switching provides best efficiency over a wide · Independent shutdown pins for ACPI range of loads. Current sense based on MOSFET RDS,on · Power Good, input UVLO, output OV gives maximum efficiency, while also permitting use of an · 5.6V to 24V input voltage range optional sense resistor for high precision. Applications The FAN5232 is available in a 14 pin TSSOP package. · LCD PCs· Notebook PCs and PDAs · Hand-held portable instruments Block Diagram Vin = 16­22V 1 14 3.3V-Always 2 13 5V-Always 3 12 12V @ 8A FAN5232 + 4 11 SDWN 5 10 SDNADJ 6 9


Please click the following link to download the datasheet:

FAN5232.pdf Datasheet