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L6710 Datasheet

  • L6710

  • 6 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MA...

  • 34頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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L6710
6 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER
WITH DYNAMIC VID MANAGEMENT
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2 PHASE OPERATION WITH
SYNCRHONOUS RECTIFIER CONTROL
ULTRA FAST LOAD TRANSIENT RESPONSE
INTEGRATED HIGH CURRENT GATE
DRIVERS: UP TO 2A GATE CURRENT
6 BIT PROGRAMMABLE OUTPUT
COMPLIANT WITH VRD 10
DYNAMIC VID MANAGEMENT
0.5% OUTPUT VOLTAGE ACCURACY
10% ACTIVE CURRENT SHARING
ACCURACY
DIGITAL 2048 STEP SOFT-START
OVERVOLTAGE PROTECTION
OVERCURRENT PROTECTION REALIZED
USING THE LOWER MOSFET'S R
dsON
OR A
SENSE RESISTOR
OSCILLATOR EXTERNALLY ADJUSTABLE
AND INTERNALLY FIXED AT 150kHz
POWER GOOD OUTPUT AND ENABLE
FUNCTION
INTEGRATED REMOTE SENSE BUFFER
TQFP44 (10 x 10 x 1mm) Exposed Pad
ORDERING NUMBERS:L6710
L6710TR (Tape & Reel)
APPLICATIONS
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POWER SUPPLY FOR HIGH CURRENT
MICROPROCESSORS
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POWER SUPPLY FOR SERVER AND
WORKSTATION
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DISTRIBUTED POWER SUPPLY
PIN CONNECTION
(top view)
DESCRIPTION
The device implements a two phase step-down
controller with a 180 phase-shift between each
phase with integrated high current drivers in a
compact 10x10mm body package with exposed
pad. A precise 6-bit digital to analog converter
(DAC) allows adjusting the output voltage from
0.8375V to 1.6000V with 12.5mV binary steps
managing Dynamic VID code changes.
The high precision internal reference assures the
selected output voltage to be within 0.5% over line
and temperature variations. The high peak current
gate drive affords to have fast switching to the ex-
ternal power mos providing low switching losses.
The device assures a fast protection against load
over current and load over/under voltage. An inter-
nal crowbar is provided turning on the low side
mosfet if an over-voltage is detected.
In case of over-current, the system works in Con-
stant Current mode until UVP
N.C.
HGATE2
PHASE2
N.C.
LGATE2
PGND
LGATE1
VCCDR
PHASE1
HGATE1
N.C.
33 32 31 30 29 28 27 26 25 24 23
22
34
35
36
37
38
39
40
41
42
43
44
1
2
3
4
5
6
7
8
9
21
20
19
18
17
16
15
14
13
12
10 11
N.C.
N.C.
BOOT2
PGOOD
VID5
VID4
VID3
VID2
VID1
VID0
N.C.
OSC / FAULT
ISEN2
PGNDS
ISEN1
FBG
FBR
N.C.
N.C.
OUTEN
VSEN
REF_OUT
March 2004
N.C.
N.C.
BOOT1
N.C.
VCC
SGND
SGND
COMP
FB
N.C.
N.C.
1/34

L6710 產(chǎn)品屬性

  • 960

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 切換控制器

  • -

  • 電流模式

  • 2

  • 178kHz

  • 80%

  • 10.2 V ~ 13.8 V

  • 是

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 無(wú)

  • 0°C ~ 125°C

  • 44-TQFP 裸露焊盤(pán)

  • 托盤(pán)

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