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參數資料
| 型號： | L6918D |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | SO-28 |
| 文件頁數： | 1/35頁 |
| 文件大小： | 431K |
| 代理商： | L6918D |
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L6918 L6918A
October 2002
This is preliminary information on a new product now in development. Details are subject to change without notice.
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OUTPUT CURRENT IN EXCESS OF 100A
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ULTRA FAST LOAD TRANSIENT RESPONSE
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REMOTE SENSE BUFFER
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INTEGRATED 2A GATE DRIVERS
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5 BIT VID VOLTAGE POSITIONING, VRM 9.0
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0.6% INTERNAL REFERENCE ACCURACY
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DIGITAL 2048 STEP SOFT-START
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OVP & OCP PROTECTIONS
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Rdson or Rsense CURRENT SENSING
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1200KHz EFFECTIVE SWITCHING
FREQUENCY, EXTERNALLY ADJUSTABLE
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POWER GOOD OUTPUT AND INHIBIT
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PACKAGE: SO28
APPLICATIONS
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HIGH DENSITY DC-DC FOR SERVERS AND
WORKSTATIONS
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SUPPLY FOR HIGH CURRENT
MICROPROCESSORS
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DISTRIBUTED POWER
DESCRIPTION
L6918A is a master device that it has to be combined
with the L6918,slave, realizing a 4-phases topology,
interleaved. The device kit is specifically designed to
provide a high performance/high density DC/DC con-
version for high current microprocessors and distrib-
uted 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 volt-
age 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.
The device 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 pro-
tection. In case of over-current, the system works in
Constant Current mode.
SO28
ORDERING NUMBERS: L6918D, L6918AD
L6918DTR, L6918ADTR
5 BIT PROGRAMMABLE MULTIPHASE CONTROLLER
PIN CONNECTIONS
1
3
2
4
5
6
7
8
9
18
17
16
15
19
20
10
11
12
13
14
24
23
22
21
25
26
27
28
LGATE1
VCCDR
PHASE1
FB
BOOT1
UGATE1
VSEN
VCC
SGND
COMP
ISEN1
PGNDS1
FBR
FBG
SYNC_IN
SLAVE_OK
SYNC / ADJ
VPROG_IN
BOOT2
PGOOD
UGATE2
PHASE2
LGATE2
PGND
OSC / INH / FAULT
ISEN2
PGNDS2
SYNC_OUT
L6918
(S
lave)
1
3
2
4
5
6
7
8
9
18
17
16
15
19
20
10
11
12
13
14
24
23
22
21
25
26
27
28
LGATE1
VCCDR
PHASE1
FB
BOOT1
UGATE1
VPROG_OUT
VCC
SGND
COMP
ISEN1
PGNDS1
SYNC_OUT
SLAVE_OK
VID3
VID2
VID1
VID4
BOOT2
PGOOD
UGATE2
PHASE2
LGATE2
PGND
OSC / INH / FAULT
ISEN2
PGNDS2
VID0
L6918A
(Master)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| L6918DTR | 功能描述:DC/DC 開關控制器 Prog Multi-Phase Cnt RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| L6919 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT |
| L6919C | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT |
| L6919CD | 功能描述:DC/DC 開關控制器 Prog Dual-Phase Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| L6919CDTR | 功能描述:DC/DC 開關控制器 Prog Dual-Phase Cont RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
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