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L6917

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 COMPLIANT WITH VRM 9.0` 0.8% INTERNAL REFERENCE ACCURACY` 10% ACTIVE CURRENT SHARING ACCURACY`...

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SeekIC No. : 004389315 Detail

L6917: 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...

L6917 Data Sheet

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Part Number:
L6917
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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 COMPLIANT WITH VRM 9.0
` 0.8% INTERNAL REFERENCE ACCURACY
` 10% ACTIVE CURRENT SHARING ACCURACY
` DIGITAL 2048 STEP SOFT-START
` OVERVOLTAGE PROTECTION
` OVERCURRENT PROTECTION REALIZED USING THE LOWER MOSFET'S RdsON OR A SENSE RESISTOR
` 300 kHz INTERNAL OSCILLATOR
` OSCILLATOR EXTERNALLY ADJUSTABLE UP TO 1MHz
` POWER GOOD OUTPUT AND INHIBIT FUNCTION
` REMOTE SENSE BUFFER
` PACKAGE: SO-28


Application

· POWER SUPPLY FOR SERVER AND WORKSTATION
· POWER SUPPLY FOR HIGH CURRENT MICROPROCESSORS
· DISTRIBUTED POWER SUPPLY


Pinout

Connection Diagram


Specifications

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
  All other pins to PGND
-0.3 to 7
V



Description

L6917 is a power supply controller specifically designed to provide a high performance DC/DC conversion for high current microprocessors.

L6917 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 1.100V to 1.850V with 25mV binary steps.

The high precision internal reference assures the selected output voltage to be within ±0.8%. The high peak current gate drive affords to have fast switching to the external power mos providing low switching losses.

L6917 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 or under voltage, the system works in HICCUP mode .




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