Features: · OUTPUT CURRENT IN EXCESS OF 100A· ULTRA FAST LOAD TRANSIENT RESPONSE· REMOTE SENSE BUFFER· INTEGRATED 2A GATE DRIVERS· 5 BIT VID VOLTAGE POSITIONING, VRM 9.0· 0.6% INTERNAL REFERENCE ACCURACY· DIGITAL 2048 STEP SOFT-START· OVP & OCP PROTECTIONS· Rdson or Rsense CURRENT SENSING· 120...
L6918: Features: · OUTPUT CURRENT IN EXCESS OF 100A· ULTRA FAST LOAD TRANSIENT RESPONSE· REMOTE SENSE BUFFER· INTEGRATED 2A GATE DRIVERS· 5 BIT VID VOLTAGE POSITIONING, VRM 9.0· 0.6% INTERNAL REFERENCE ACC...
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Symbol | Parameter | Value | Unit |
Vcc, VCCDR | To PGND | 15 | V |
VBOOT-VPHASE | Boot Voltage | 15 | V |
VUGATE1-VPHASE1 VUGATE2-VPHASE2 |
15 | V | |
LGATE1, PHASE1, LGATE2, PHASE2 to PGND | -0.3 to Vcc+0.3 | V | |
VID0 to VID4 | -0.3 to 5 | V | |
All other pins to PGND | -0.3 to 7 | V | |
VPHASEx | Sustainable Peak Voltage t<20nS @ 600kHz | 26 | V |
L6918A is a master device that it has to be combined with the L6918,slave, realizing a 4-phases topology, interleaved. L6918 kit is specifically designed to provide a high performance/high density DC/DC conversion for high current microprocessors and distributed power. Each device implements a dual-phase step-down controller with a 180° phase-shift between each phase.
A precise 5-bit DAC allows adjusting the output voltage from 1.100V to 1.850V with 25mV binary steps. The high peak current gate drives affords to have high system switching frequency, typically of 1200KHz, and higher by external adjustement.
L6918 kit assure a fast protection against OVP, UVP and OCP. An internal crowbar, by turning on the low side mosfets, eliminates the need of external protection. In case of over-current, the system works in Constant Current mode.