PDF NCP5316 Data sheet ( Hoja de datos )

Número de pieza	NCP5316
Descripción	Four/Five/Six-Phase Buck CPU Controller
Fabricantes	ON Semiconductor
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Hay una vista previa y un enlace de descarga de NCP5316 (archivo pdf) en la parte inferior de esta página. Total 32 Páginas
No Preview Available ! www.DataSheet4U.com NCP5316 Four/Five/Six−Phase Buck CPU Controller The NCP5316 provides full−featured and flexible control for the latest high−performance CPUs. The IC can be programmed as a four−, five− or six−phase buck controller, and the per−phase switching frequency can be as high as 1.0 MHz. Combined with external gate drivers and power components, the controller implements a compact, highly integrated multi−phase buck converter. Enhanced V2™ control inherently compensates for variations in both line and load, and achieves current sharing between phases. This control scheme provides fast transient response, reducing the need for large banks of output capacitors and higher switching frequency. The controller meets VR(M)10.x specifications with all the required functions and protection features. Features • Switching Regulator Controller ♦ Programmable 4/5/6 Phase Operation ♦ Lossless Current Sensing ♦ Programmable Up to 1.0 MHz Switching Frequency Per Phase ♦ 0 to 100% Adjustment of Duty Cycle ♦ Programmable Adaptive Voltage Positioning Reduces Output Capacitor Requirements ♦ Programmable Soft Start • Current Sharing ♦ Differential Current Sense Pins for Each Phase ♦ Current Sharing Within 10% Between Phases • Protection Features ♦ Programmable Pulse−by−Pulse Current Limit for Each Phase ♦ “111110” and “111111” DAC Code Fault ♦ Latching Off Overvoltage Protection ♦ Programmable Latch Overcurrent Protection ♦ Undervoltage Lockout ♦ Reference Undervoltage Lockout ♦ MOSFET Driver Control through Driver−On Signal • System Power Management ♦ 6−Bit DAC with 0.5% Tolerance ♦ Programmable Lower Power Good Threshold ♦ Power Good Output ♦ External Enable Control ♦ 3.3 V Reference Voltage Output http://onsemi.com 48−PIN QFN, 7 y 7 MN SUFFIX CASE 485K (Bottom View) MARKING DIAGRAMS 48 1 NCP5316 AWLYYWW LQFP−48 FT SUFFIX CASE 932 NCP5316 AWLYYWW 48 1 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week ORDERING INFORMATION Device Package Shipping† NCP5316MNR2 48−Pin QFN* 2000 Tape & Reel NCP5316FTR2 LQFP−48* 2000 Tape & Reel 7 × 7 mm †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. © Semiconductor Components Industries, LLC, 2004 February, 2004 − Rev. 9 1 Publication Order Number NCP5316/D 1 page NCP5316 MAXIMUM RATINGS (continued) Pin Number Pin Symbol 41 CS3N 42 IPLIM 43 VDRP 44 ILIM 45 IOF 46 IO 47 VREF 48 VCCL VMAX 18 V 7.0 V 7.0 V 7.0 V 7.0 V 7.0 V 7.0 V 18 V VMIN −0.3 V −0.3 V −0.3 V −0.3 V −0.3 V −0.3 V −0.3 V −0.3 V ISOURCE 1.0 mA 1.0 mA 1.0 mA 1.0 mA 1.0 mA 5.0 mA 5.0 mA − ISINK 1.0 mA 1.0 mA 1.0 mA 1.0 mA 1.0 mA 1.0 mA 1.0 mA 50 mA VOLTAGE IDENTIFICATION (VID) VID Pins (0 = low, 1 = high) VID4 0 VID3 1 VID2 0 VID1 1 VID0 0 01001 01001 01000 01000 00111 00111 00110 00110 00101 00101 00100 00100 00011 00011 00010 00010 00001 00001 00000 00000 11111 11111 11110 11110 11101 11101 11100 VID Code is for reference only. †VOUT No Load is the input to the error amplifier. VID5 0 VID Code*(V) 0.8375 1 0.8500 0 0.8625 1 0.8750 0 0.8875 1 0.9000 0 0.9125 1 0.9250 0 0.9375 1 0.9500 0 0.9625 1 0.9750 0 0.9875 1 1.0000 0 1.0125 1 1.0250 0 1.0375 1 1.0500 0 1.0625 1 1.0750 0 1.0875 1 0 1 1.1000 0 1.1125 1 1.1250 0 1.1375 1 1.1500 −0.5% VOUT No Load† (V) 0.8134 0.8259 0.8383 0.8507 0.8632 0.8756 0.8880 0.9005 0.9129 0.9254 0.9378 0.9502 0.9627 0.9751 0.9875 1.0000 1.0124 1.0249 1.0373 1.0497 1.0622 1.0746 1.0870 1.0995 1.1119 1.1244 OFF OFF 0.8175 0.8300 0.8425 0.8550 0.8675 0.8800 0.8925 0.9050 0.9175 0.9300 0.9425 0.9550 0.9675 0.9800 0.9925 1.0050 1.0175 1.0300 1.0425 1.0550 1.0675 1.0800 1.0925 1.1050 1.1175 1.1300 +0.5% 0.8216 0.8342 0.8467 0.8593 0.8718 0.8844 0.8970 0.9095 0.9221 0.9347 0.9472 0.9598 0.9723 0.9849 0.9975 1.0100 1.0226 1.0352 1.0477 1.0603 1.0728 1.0854 1.0980 1.1105 1.1231 1.1357 http://onsemi.com 5 5 Page ENABLE VCCL VREF VID5 VID0 VID1 VID2 VID3 VID4 SGND PWRLS CS1P CS1N CS2P CS2N CS3P CS3N CS4P CS4N CS5P CS5N CS6P CS6N PWRGD SS VREF 10 k 3.3 V Reference UVLO Comparator − −+ + 9.0 V 8.0 V VREF Comparator − + + 3.0 V − 2.9 V DAC VID = 11111x − −+ + 0.8 V 0.4 V Enable Comparator Fault Latch SQ R 200 mV −+ OVP Comparator − + SQ VCCL Charge Current Discharge Current DAC Output PWRGD R 100 mV Comparator CO1 + ×3 CO1 − CO1F + × 9.5 CO1F − CO2 + ×3 CO2 − CO2F + × 9.5 CO2F − CO3 + ×3 CO3 − CO3F + × 9.5 CO3F − CO4 + ×3 CO4 − CO4F + × 9.5 CO4F − CO5 + ×3 CO5 − CO5F + × 9.5 CO5F − CO6 + ×3 CO6 − CO6F + × 9.5 CO6F − 20 mV +− −+ 0.5 − + PWRGD + Comparator − Delay 0.6 V −+ Module OC Comparator + + IO Buffer −+ AVP Buffer −+ Error Amplifier + − CS3P Phase 3 Disable Comparator + −+ − VCC − 0.5 V Phase 6 CS6P Disable Comparator + −+ − VCC − 0.5 V Current Source Generator + − × 1.4 × 0.85 + − 1.0 V + − +RAMP1 CO1 CO1F PWM Comparator − PWM Latch + Phase1 SQ Pulse Current Comparator + −R 70k Phase1 Ramp1 Phase2 Ramp2 Phase3 Ramp3 Phase4 Ramp4 Phase5 Ramp5 Phase6 Ramp6 PWM Comparator +RAMP2 − + CO2 CO2F + − PWM Comparator +RAMP3 − + CO3 CO3F + − PWM Comparator +RAMP4 − + CO4 CO4F + − PWM Comparator +RAMP5 − + CO5 CO5F + − PWM Comparator +RAMP6 − + CO6 CO6F + − PWM Latch Phase2 SQ VCC R PWM Latch Phase3 SQ VCC R PWM Latch Phase4 SQ VCC R PWM Latch Phase5 SQ VCC R PWM Latch Phase6 SQ VCC R DRVON VCC GATE1 GATE2 GATE3 GATE4 GATE5 GATE6 GND IO ILIM IOF VDRP VFFB VFB ROSC LGND COMP IPLIM 11 Page

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