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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN5069 PWM and LDO Controller Combo September 2006 FAN5069 PWM and LDO Controller Combo Features Description General Purpose PWM Regulator and LDO Controller The FAN5069 combines a high-efficiency Pulse-Width- Modulated (PWM) controller and an LDO (Low DropOut) Input Voltage Range: 3V to 24V linear regulator controller. Synchronous rectification pro- Output Voltage Range: 0.8V to 15V vides high efficiency over a wide range of load currents. V CC Efficiency is further enhanced by using the low-side 5V MOSFETs R to sense current. DS(ON) Shunt Regulator for 12V Operation Both the linear and PWM regulator soft-start are con- Support for Ceramic Cap on PWM Output trolled by a single external capacitor, to limit in-rush cur- Programmable Current Limit for PWM Output rent from the supply when the regulators are first Programmable Switching Frequency (200KHz to enabled. Current limit for PWM is also programmable. 600KHz) The PWM regulator employs a summing-current-mode R Current Sensing DS(ON) control with external compensation to achieve fast load Internal Synchronous Boot Diode transient response and provide design optimization. Soft-Start for both PWM and LDO FAN5069 is offered in both industrial temperature grade Multi-Fault Protection with Optional Auto-restart (-40C to +85C) as well as commercial temperature 16-pin TSSOP Package grade (-10C to +85C). Applications PC/Server Motherboard Peripherals V (1.5V), V (1.5V) and CC MCH DDQ V (1.25V) TT GTL Power Supply for FPGA, DSP, Embedded Controllers, Graphic Card Processor, and Communication Processors Industrial Power Supplies High-Power DC-to-DC Converters Ordering Information Part Number Operating Temp. Range Pb-Free Package Packing Method Qty./Reel FAN5069MTCX -10C to +85C Yes 16-Lead TSSOP Tape and Reel 2500 FAN5069EMTCX -40C to +85C Yes 16-Lead TSSOP Tape and Reel 2500 Note: Contact Fairchild sales for availability of other package options. 2005 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5069 Rev. 1.1.5