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參數(shù)資料
| 型號： | MAX8632 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quadruple 2-Input Positive-NAND Gates With Open-Drain Outputs 20-LCCC -55 to 125 |
| 中文描述： | 集成DDR電源方案，適用于臺式機(jī)、筆記本電腦和圖形卡 |
| 文件頁數(shù)： | 24/29頁 |
| 文件大小： | 512K |
| 代理商： | MAX8632 |
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M
Transient Response (Buck)
The inductor ripple current also affects transient-
response performance, especially at low V
IN
- V
OUT
dif-
ferentials. Low inductor values allow the inductor
current to slew faster, replenishing charge removed
from the output filter capacitors by a sudden load step.
The output sag is also a function of the maximum duty
factor, which can be calculated from the on-time and
minimum off-time:
where t
OFF(MIN)
is the minimum off-time (see the
Electrical Characteristics
) and K is from Table 1.
V
L
I
V
K
V
t
C
V
V
V
K
V
t
SAG
LOAD MAX
OUT
IN
OFF MIN
(
OUT
OUT
IN
OUT
IN
OFF MIN
(
=
×
×
+
×
(
)
×
+
(
)
)
)
2
2
-
Integrated DDR Power-Supply Solution for
Desktops, Notebooks, and Graphic Cards
24
______________________________________________________________________________________
Figure 8. Typical Applications Circuit
MAX8632
REF
ILIM
GND
PGND1
DL
VTTR
V
DD
FB
DH
LX
BST
V
IN
AV
DD
VTTI
VTT
POK1
V
IN
(4.5V TO 28V)
2.5V
/
12A
VTT
1.25V
/
±
1.5A
5V
BIAS
SUPPLY
POK1
VTTR
1.25V
/
10mA
PGND2
REFIN
VTTS
OUT
TP0
POK2
POK2
SS
TON
OVP/UVP
Q1
IRF7821
n-CHANNEL
30V, 9m
L1
TOKO FDA1254-1R0M
1.0
μ
H, 21A, 1.6m
D1
CMDSH-3
C11, C12 (150
μ
F, 4V,
25m
, LOW-ESR POS
CAPACITOR (D2E)
SANYO 4TPE150M
Q2
IRF7832
n-CHANNEL
30V,5m
C2
10
μ
F
C4
20
μ
F
C6
1
μ
F
R3
100k
R4
100k
R5
47.5k
R2
100k
C9
3.9nF
C10
0.22
μ
F
ON
OFF
C11
150
μ
F
C12
150
μ
F
C13
1
μ
F
C7
0.22
μ
F
C5
4.7
μ
F
R1
10
C3
1
μ
F
C1
0.1
μ
F
C14
470
μ
F
(OPTIONAL)
SKIP
SHDN
STBY
C8
2 x 10
μ
F
R6
20
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8632ETI+ | 功能描述:PMIC 解決方案 DDR Power-Supply Solution RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8632ETI+T | 功能描述:PMIC 解決方案 DDR Power-Supply Solution RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX8632ETI+TGD2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX8632EVKIT | 功能描述:電源管理IC開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX8633ELA+ | 制造商:Maxim Integrated Products 功能描述: |
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