Features: · 2 PHASE OPERATION WITH SYNCRHONOUS RECTIFIER CONTROL· ULTRA FAST LOAD TRANSIENT RESPONSE· INTEGRATED HIGH CURRENT GATE DRIVERS: UP TO 2A GATE CURRENT· TTL-COMPATIBLE 5 BIT PROGRAMMABLE OUTPUT FROM 0.800V TO 1.550V WITH 25mV STEPS· DYNAMIC VID MANAGEMENT· 0.6% OUTPUT VOLTAGE ACCURACY· 1...
L6919C: Features: · 2 PHASE OPERATION WITH SYNCRHONOUS RECTIFIER CONTROL· ULTRA FAST LOAD TRANSIENT RESPONSE· INTEGRATED HIGH CURRENT GATE DRIVERS: UP TO 2A GATE CURRENT· TTL-COMPATIBLE 5 BIT PROGRAMMABLE O...
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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 | |
Vphase | Sustainable Peak Voltage t < 20ns @ 600kHz | 26 | V |
L6919C is a power supply controller specifically designed to provide a high performance DC/DC conversion for high current microprocessors. L6919C implements a dual-phase step-down controller with a 180° phase-shift between each phase. A precise 5-bit digital to analog converter (DAC) allows adjusting the output voltage from 0.800V to 1.550V with 25mV binary steps managing On-The-Fly VID code changes.
The high precision internal reference assures the selected output voltage to be within ±0.6%. The high peak current gate drive affords to have fast switching to the external power mos providing low switching losses.
L6919C assures a fast protection against load over current and load over/under voltage. An internal crowbar is provided turning on the low side mosfet if an over-voltage is detected. In case of over-current, the system works in Constant Current mode.