參數(shù)資料
型號(hào): MAX1937
廠商: Maxim Integrated Products, Inc.
英文描述: Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
中文描述: 雙相、臺(tái)式機(jī)CPU核電源控制器,帶有受控的VID調(diào)節(jié)
文件頁(yè)數(shù): 15/24頁(yè)
文件大小: 586K
代理商: MAX1937
M
Two-Phase Desktop CPU Core Supply Controllers
with Controlled VID Change
______________________________________________________________________________________
15
connect a capacitor (C
VLG
) from VLG to PGND. Place
this capacitor as close as possible to the VLG pin.
The MAX1937/MAX1938/MAX1939 also require an exter-
nal 5V supply connected to V
DD
. A diode with a forward
voltage drop of about 1V (D1) is used to stepdown the
6V supply to power the IC, as shown in Figure 1. The
diode connects between the linear regulator output and
the RC filter used to filter the voltage at V
DD
(R1, C
VDD
,
and C3). In the PC board layout, place C
VDD
as close as
possible to the V
DD
pin.
High-Side Gate-Drive Supply (BST_)
The drive voltage for the high-side MOSFETs is gener-
ated using a bootstrap circuit. The capacitor, C
BST_
,
should be sized properly to minimize the ripple voltage
for switching. The ripple voltage should be less than
200mV. For more information on selecting capacitors
for the BST circuit, see the
Selecting a BST Capacitor
section. To minimize the forward voltage drop across
the bootstrap diodes (D2), use Schottky diodes. The
recommended value for the boost capacitors (C
BST_
) is
0.22μF.
R2
100k
V
CC
V
DD
VID4
EN
GNDS
TIME
VPOS
GND
REF
BF
PWRGD
LX2
DH2
ILIM
GNDS
6
×
10
μ
F CERAMIC CAPACITORS
TAIYO YUDEN TMK432BJ106MM
AND 2
×
100
μ
F OS-CON
SANYO 16SP100M
IR: 2
×
IRLR7811W
6
×
390
μ
F SP-CAP
PANASONIC EEFUE0D391XR
AND 4
×
1
μ
F CERAMIC CAPACITORS
TAIYO YUDEN LMK212BJ105MG
C
VLG
1
μ
F
C3
2.2
μ
F
C
VDD
0.01
μ
F
VID4
EN
N2
N3
L2
0.66
μ
H
SUMIDA CDEP134-6
IR: 2
×
1RLR7811W
FAIRCHILD
2
×
ISL9N303AS3ST
2
D2
CENTRAL CMPSH-3A
FAIRCHILD
2
×
ISL9N303AS3ST
3
R5
10k
R4
68k
C
REF
0.47
μ
F
C
47pF
R3
200k
R1
10
PWRGD
C
OUT
V
OUT
FB
VDD
L1
0.66
μ
H
SUMIDA CDEP134-6
C1
2.2
μ
F
R
51.1k
R
TIME
120k
U1
MAX1937
R6
10k
28
8
6
13
VID2
VID3
VID2
VID1
VID0
D1
GND
U2
KA78M06
IN
CENTRAL
CMHD4448
2
3
2
OUT
1
1
VID3
4
5
VID0
VID1
1
2
3
7
12
9
10
11
18
17
14
1
2
2
C
BST2
0.22
μ
F
C
BST1
0.22
μ
F
3
DL2
N4
20
CS2
19
PGND
21
VLG
CS1
22
24
DL1
23
BST1
27
LX1
25
DH1
26
BST2
16
1
1
1
1
3
N3
2
3
N1
C
IN
INPUT: 8V TO 14V
OUTPUT
0.8V TO 1.55V
46A
3
2
13
V
IN
VDD
1m
R
CS2
1m
R
CS1
C2
2.2
μ
F
V
IN
Figure 1. MAX1937 Application Circuit
相關(guān)PDF資料
PDF描述
MAX1937EEI Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
MAX1938 Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
MAX1938EEI Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
MAX1939 Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
MAX1939EEI Two-Phase Desktop CPU Core Supply Controllers with Controlled VID Change
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1937EEI 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
MAX1937EEI+ 功能描述:DC/DC 開(kāi)關(guān)控制器 2-Phase Desktop CPU Core Supply Ctlr 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
MAX1937EEI+T 功能描述:DC/DC 開(kāi)關(guān)控制器 2-Phase Desktop CPU Core Supply Ctlr 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
MAX1937EEI-T 功能描述:開(kāi)關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開(kāi)關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
MAX1937EEI-TG069 制造商:Maxim Integrated Products 功能描述: