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): 27/32頁
文件大小: 319K
代理商: MAX799MJE
M
S tep-Down Controllers with
S ync hronous Rec tifier for CPU Power
______________________________________________________________________________________
27
MAX473
V+
INPUT
4.5V
TO30V
Q1
Si9433DY
OR MMSF4P01
82pF
VL (5V)
20pF
1k
100k, 1%
1.5k
16k, 1%
REF
(2.505V)
MAIN
3.3V
OUTPUT
(CSL)
+3.3V
MAIN OUTPUT
+2.9V OUTPUT
AT 2A
STANDARD 3.3V
CIRCUIT
10
μ
F
10
μ
F
MAX797
SANYOOS-CON
Figure 14. 2.9V Low-Dropout Linear Regulator with Fast Transient Response
MAX797
CSL
CSH
VL
SYNC
REF
GND
V+
Q1
FB
100k
100k
+5V AT 1A
BST
DH
LX
DL
PGND
2N7002
OPTIONAL SYNC AND LOW-VOLTAGE
START-UP CIRCUIT
SKIP
SHDN
V
IN
2.5V TO5.25V
C2
100
μ
F
C3
100
μ
F
0.33
μ
F
0.033
0.01
μ
F
C1
100
μ
F
D1
1N4148
190kHz - 340kHz
1N4148
+3.3V
(EXTERNAL)
33k
4.7
μ
F
L1
5
μ
H
0.1
μ
F
L1 = SUMIDA CDRH125, 5
μ
H
D1 = MOTOROLA MBR130
C1 - C3 = AVX TPS 100
μ
F, 10V
Q1 = SILICONIX Si9936 (BOTH SECTIONS)
OR MOTOROLA MMDF3N03L
Figure 15. Low-Noise Boost Converter for Cellular Phones
____________________________________________Applic ation Circ uits (c ontinued)
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