參數(shù)資料
型號: MAX799MJE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Step-Down Controllers with Synchronous Rectifier for CPU Power
中文描述: SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, DIP16
封裝: CERAMIC, DIP-16
文件頁數(shù): 30/32頁
文件大小: 319K
代理商: MAX799MJE
M
S tep-Down Controllers with
S ync hronous Rec tifier for CPU Power
30
______________________________________________________________________________________
MAX797
CSL
SYNC
REF
CSH
FB
VL
V+
Q1
Q2
1N4148
1N4148
D1
1N5819
T1
GND
+5V OUTPUT
AT 3A
BST
DH
LX
DL
PGND
SKIP
SS
SHDN
INPUT
0.33
μ
F
C1
2x 22
μ
F
4.7
μ
F
C2
220μ
F
0.1
μ
F
0.01
μ
F
0.1
μ
F
100k
1%
100k
1%
10
μ
H
1.91
, 1%
T1 = 1:70 5mmSURFACE-MOUNT TRANSFORMER
DALE LPE-3325-A087
Q1, Q2 = MMSF5N03 OR Si9410DY
Figure 20. Buck Converter with Low-Loss SMT Current-Sense Transformer
____________________________________________Applic ation Circ uits (c ontinued)
MAX797
MAX495
CSL
CSH
VL
SYNC
FB
V+
N1
N2
D1
D2
1N5820
REF
GND
1.5V OUTPUT
AT 5A
DH
LX
DL
PGND
BST
SKIP
SS
ON/OFF
SHDN
INPUT
4.75V
TO5.5V
4.7
μ
F
0.1
μ
F
C6
0.01
μ
F
C2
2 x 220
μ
F
OS-CON
C3
0.1
μ
F
C5
0.33
μ
F
L1
3.3
μ
H
C7
330pF
R1
12m
R6
49.9k
R7
124k
R5
150k
TO
VL
R3
66.5k
1%
R4
100k
1%
C1
220
μ
F
OS-CON
REMOTE SENSE LINE
N1 = N2 = MTD20N03HDL
L1 = COILCRAFT DO3316-332
Figure 21. 1.5V GTL Bus Termination Supply
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