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FAN5069MTCX Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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FAN5069MTCX Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 20 page FAN5069 Rev. 1.1.0 1 www.fairchildsemi.com October 2005 ©2005 Fairchild Semiconductor Corporation FAN5069 PWM and LDO Controller Combo Features ■ General Purpose PWM Regulator and LDO Controller ■ Input Voltage Range: 3V to 24V ■ Output Voltage Range: 0.8V to 15V ■ VCC - 5V - Shunt Regulator for 12V Operation ■ Support for Ceramic Cap on PWM Output ■ Programmable Current Limit for PWM Output ■ Programmable Switching Frequency (200KHz to 600KHz) ■ RDS(ON) Current Sensing ■ Internal Synchronous Boot Diode ■ Soft-Start for both PWM and LDO ■ Multi-Fault Protection with Optional Auto-restart ■ 16-pin TSSOP Package Applications ■ PC/Server Motherboard Peripherals - VCC_MCH (1.5V), VDDQ (1.5V) and VTT_GTL(1.25V) ■ Power Supply for - FPGA, DSP, Embedded Controllers, Graphic Card Proces- sor, and Communication Processors ■ Industrial Power Supplies ■ High Power DC-to-DC Converters Description The FAN5069 combines a high efficiency PWM controller and a LDO (Low DropOut) linear regulator controller. Synchronous rectification provides high efficiency over a wide range of load currents. Efficiency is further enhanced by using the low-side MOSFET's RDS(ON) to sense current. Both the linear and PWM regulator soft-start are controlled by a single external capacitor, to limit in rush current from the supply when the regulators are first enabled. Current limit for PWM is also programmable. The PWM regulator employs a Summing-Current-Mode control with external compensation to achieve fast load transient response and provide system design optimization. FAN5069 is offered in both industrial temperature grade (-40°C to +85°C) as well as commercial temperature grade (-10°C to +85°C) Ordering Information Note: Contact Fairchild Sales for availability of other package options. Part Number Operating Temp. Range Pb-Free Package Packing Method Qty/Reel FAN5069MTCX -10°C to +85°C Yes 16-Lead TSSOP Tape and Reel 2500 FAN5069EMTCX -40°C to +85°C Yes 16-Lead TSSOP Tape and Reel 2500 |
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