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NCP5316 Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP5316 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 31 page © Semiconductor Components Industries, LLC, 2006 July, 2006 − Rev. 10 1 Publication Order Number NCP5316/D 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 48−PIN QFN, 7 y 7 MN SUFFIX CASE 485K (Bottom View) MARKING DIAGRAMS http://onsemi.com 48 NCP5316 AWLYYWW 1 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week LQFP−48 FT SUFFIX CASE 932 NCP5316 AWLYYWW *7 × 7 mm Device Package Shipping† ORDERING INFORMATION NCP5316MNR2 48−Pin QFN* 2000 Tape & Reel 2000 Tape & Reel NCP5316FTR2 LQFP−48* 48 1 †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. |
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