FAN5059M Fairchild Semiconductor, FAN5059M Datasheet
FAN5059M
Specifications of FAN5059M
FAN5059M_NL
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FAN5059M Summary of contents
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... VID0 VID2 VID4 VID1 VID3 Pentium is a registered trademark of Intel Corporation. Programmable Active Droop is a trademark of Fairchild Semiconductor. Applications • Power supply for Pentium • Power supply for Pentium III Whitney Platform • VRM for Pentium III processor • Programmable multi-output power supply ...
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FAN5059 currents in excess of 16A from a 5V source with minimal external circuitry. Synchronous-mode operation offers opti- mum efficiency over the entire specified output voltage range. An on-board precision low TC reference achieves tight toler- ance voltage regulation without ...
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PRODUCT SPECIFICATION Absolute Maximum Ratings Supply Voltage VCCA to GND Supply Voltage VCCP to GND Voltage Identification Code Inputs, VID0-VID4 All Other Pins Junction Temperature Storage Temperature Lead Soldering Temperature, 10 seconds Thermal Resistance Junction-to-ambient, Note: 1. Component ...
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FAN5059 Electrical Specifications ( 12V 2.0V, and T CCA CCP OUT The • denotes specifications which apply over the full operating temperature range. Parameter Duty Cycle 5V UVLO 12V UVLO Soft Start Current VTT ...
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PRODUCT SPECIFICATION Table 1. Output Voltage Programming Codes VID4 VID3 ...
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FAN5059 Typical Operating Characteristics ( 12V, and T = +25°C using circuits in Figure 1, unless otherwise noted.) CCA CCP A V Efficiency vs. Output Current CPU 1.550V OUT ...
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PRODUCT SPECIFICATION Typical Operating Characteristics Output Ripple, 2.0V @ 18A Time (1 s/div) Transient Response, 0.5A to 12.5A Time (100 s/div) Output Startup, System Power-up Time (10ms/div) REV. 1.0.4 8/14/03 (continued) Transient Response, 12.5A to 0.5A Time (100 s/div) Switching ...
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FAN5059 Typical Operating Characteristics 2.042 2.040 2.038 2.036 2.034 2.030 2.028 2.026 0 25 Temperature ( C) Application Circuit L1 (Optional) + OUT R3 D1 3.3V IN ...
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... Any R7 Any U1 Fairchild FAN5059M Notes: 1. Inductor L1 is recommended to isolate the 5V input supply from noise generated by the MOSFET switching, and to comply with Intel dI/dt requirements. L1 may be omitted if desired. 2. For 17.4A designs using the TO-220 MOSFETs, heatsinks with thermal resistance using the TO-263 MOSFETs, adequate copper area should be used. For details and a spreadsheet on MOSFET selections, refer to Applications Bulletins AB-8 and AB-15 ...
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FAN5059 L1 (Optional) + OUT C10 C11 Q4 1.5V† C8 2.5V† C9 Figure 2. Application Circuit for Coppermine/Camino Motherboards 10 C1 ...
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... Any R8 N/A U1 Fairchild FAN5059M Notes: 1. Inductor L1 is recommended to isolate the 5V input supply from noise generated by the MOSFET switching, and to comply with Intel dI/dt requirements. L1 may be omitted if desired. 2. For 12.5A designs using the TO-220 MOSFETs, heatsinks with thermal resistance designs using the TO-263 MOSFETs, adequate copper area should be used. For details and a spreadsheet on MOSFET selections, refer to Applications Bulletins AB-8 and AB-15 ...
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FAN5059 Test Parameters Figure 3. Ouput Drive Timing Diagram Application Information The FAN5059 Controller The FAN5059 is a programmable synchronous DC-DC con- troller IC. When designed around the appropriate external components, the ...
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PRODUCT SPECIFICATION 5V 2.75V V SS 2.25V T(0) T The softstart ramp begins at T(0) where UVLO is released. During the period of t the softstart pin ramps but the PWM 1 switching is not ...
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FAN5059 with I 50µ the desired current limit, and Detect SC R the high-side MOSFET’s on resistance. Remember to DS,on make the R large enough to include the effects of initial tol- S erance and temperature variation on ...
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... For more detailed information regarding capacitor placement, refer to Application Bulletin AB-5. • Board Layout Checklist is available from Fairchild Applications. Ask for Application Bulletin AB-11. Additional Information –1 For additional information contact Fairchild Semiconductor at http://www.fairchildsemi.com/cf/tsg.htm or contact an autho- rized representative in your area. FAN5059 15 ...
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FAN5059 Appendix Worst-Case Formulae for the Calculation of Cin, Cout , R5, R7 and Roffset Figure 1 only) The following formulae design the FAN5059 for worst-case operation, including initial tolerance and temperature dependence of all of the IC parameters (initial ...
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PRODUCT SPECIFICATION Mechanical Dimensions 24 Lead SOIC Inches Millimeters Symbol Min. Max. Min. A .093 .104 2.35 A1 .004 .012 0.10 B .013 .020 0.33 C .009 .013 0.23 D .599 .614 15.20 E .290 .299 7.36 e .050 BSC ...
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... FAN5059 Ordering Information Product Number Package FAN5059M 24 pin SOIC DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS ...