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FAN5069MTCX Fiches technique(PDF) 1 Page - Fairchild Semiconductor |
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FAN5069MTCX Fiches technique(HTML) 1 Page - Fairchild Semiconductor |
1 / 22 page © 2005 Fairchild Semiconductor Corporation www.fairchildsemi.com September 2006 FAN5069 Rev. 1.1.5 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 Processor, and Communication Processors ■ Industrial Power Supplies ■ High-Power DC-to-DC Converters Description The FAN5069 combines a high-efficiency Pulse-Width- Modulated (PWM) controller and an LDO (Low DropOut) linear regulator controller. Synchronous rectification pro- vides 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 con- trolled by a single external capacitor, to limit in-rush cur- rent 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 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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