參數(shù)資料
型號(hào)： L6917D
廠商： STMICROELECTRONICS
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO28
封裝： SO-28
文件頁(yè)數(shù)： 17/27頁(yè)
文件大?。?/td> 411K
代理商： L6917D
L6917
24/27
Application Idea: 12V input 3.3V / 5V 40A output
Figure 17 shows the device in a high current server power supply application.
Adding an external resistor divider after the remote sense buffer gives the possibility to increase the regulated
voltage. Considering for example a divider by two (two equal resistors) the DAC range is doubled from 2.200V
to 3.700V with 50mV binary steps. It is then possible to regulate the 3.3V and 2.5V rails from the 12V available
from the AC/DC converter. The 5V rail can be obtained modifying the external divider. The regulator assures all
the advantages of the dual phase conversion (especially in the 5V conversion where the duty cycle is near the
50% and practically no ripple is present in the input capacitors) and a 300kHz free-running frequency that re-
duces components size. Output current ranges from 35A up to 50A.
Figure 17. Server power supply schematic
Part List
R1
10k
SMD 0805
R3, R4, R5, R6
8.2k
1%
SMD 0805
R7
820
1%
SMD 0805
R8
10k
SMD 0805
R10
82
SMD 0805
R12 to R16
0
SMD 0805
R17, R18
0
SMD 0805
R19, R20
330
SMD 0805
C2
4.7n
SMD 0805
C3, C4
100n
SMD 0805
C5, C6, C7
1
Ceramic
SMD 1206
C8
10
Ceramic
SMD 1206
C9 to C13
47
Ceramic
SMD 1026
P GOO D
P GND
P GND S2
IS EN 2
LGA TE2
VSE N
FB
P H ASE2
U GA TE2
B OOT 2
VC C
C OMP
SG ND
O SC / INH
V ID0
V ID1
V ID2
V ID3
V ID4
P GND S1
ISE N1
LG ATE1
P H ASE1
UGA TE 1
B OOT 1
V CCD R
6
24
25
26
27
16
15
2
5
4
3
1
13
14
22
21
20
18
19
7
28
23
10
9
8
11
12
FB R
FBG
17
C1
R7
R8
C2
R4
R3
Q3
Q4
C3
L2
C7
R10
D3
C5
C11..C13
C14,
C24
R1
R2
S1
S0
S3
S2
S4
R5
R6
Q1
L1
Q2
C4
D4
C6
Vin
GNDin
GNDCORE
VoutCORE
PGOOD
FBG
FBR
U1
L6917
C8
R13
R15
R12
R14
C9,C10
R9
R18
D1
R17
R16
D2
R19
R20
D5
D6
相關(guān)PDF資料
PDF描述
L6918ADTR SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO28
L6918AD SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO28
L6919CD SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO28
L6919E SWITCHING CONTROLLER, PDSO28
L6920DTR 1.2 A SWITCHING REGULATOR, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6917DTR 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Analog IC
L6918 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5 BIT PROGRAMMABLE MULTIPHASE CONTROLLER
L6918A 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5 BIT PROGRAMMABLE MULTIPHASE CONTROLLER
L6918AD 功能描述:DC/DC 開(kāi)關(guān)控制器 Prog Multi-Phase Cnt RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6918ADTR 功能描述:DC/DC 開(kāi)關(guān)控制器 Prog Multi-Phase Cnt RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*