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L6718 Datasheet(PDF) 1 Page - STMicroelectronics |
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L6718 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 71 page  This is information on a product in full production. April 2013 DocID023399 Rev 3 1/71 71 L6718 Digitally controlled dual PWM with embedded drivers for VR12 processors Datasheet - production data Features • VR12 compliant with 25 MHz SVID bus rev. 1.5 • Second generation LTB Technology™ • Very compact dual controller: – Up to 4 phases for core section with 2 internal drivers – 1 phase for GFX section with internal driver • Input voltage up to 12 V • SMBus interface for power management • SWAP, Jmode, multi-rail only support • Programmable offset voltage • Single NTC design for TM, LL and IMON thermal compensation (for each section) • VFDE for efficiency optimization • DPM - dynamic phase management • Dual differential remote sense • 0.5% output voltage accuracy • Full-differential current sense across DCR • AVP - adaptive voltage positioning • Programmable switching frequency • Dual current monitor • Pre-biased output management • High-current embedded drivers optimized for 7 V operation • OC, OV, UV and FB disconnection protection • Dual VR_READY • VFQFPN56 7x7 mm package with exposed pad Applications • High-current VRM / VRD for desktop / server / new generation workstation CPUs • DDR3 DDR4 memory supply for VR12 Description The L6718 is a very compact, digitally controlled and cost effective dual controller designed to power Intel® VR12 processors. Dedicated pinstrapping is used to program the main parameters. The device features from 2 to 4-phase programmable operation for the core section providing 2 embedded drivers. A single-phase with embedded driver and with independent control loop is used for GFX. The L6718 supports power state transitions featuring VFDE and a programmable DPM, maintaining the best efficiency over all loading conditions without compromising transient response. Second generation LTB Technology™ allows a minimal cost output filter providing fast load transient response. The controller assures fast and independent protection against load overcurrent, under/overvoltage and feedback disconnections. The device is available in VFQFPN56, 7x7 mm compact package with exposed pad. VFQFPN56 -7x7 mm Table 1. Device summary Order code Package Packaging L6718 VFQFPN56 7x7 mm Tray L6718TR VFQFPN56 7x7 mm Tape and reel www.st.com |
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