參數(shù)資料
型號: MAX799ESE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Octal D-type Edge-Triggered Flip-Flops with 3-State Outputs 20-CDIP -55 to 125
中文描述: SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO16
封裝: SOIC-16
文件頁數(shù): 28/32頁
文件大小: 319K
代理商: MAX799ESE
M
S tep-Down Controllers with
S ync hronous Rec tifier for CPU Power
28
______________________________________________________________________________________
MAX797
CSL
CSH
SS
VL
SYNC
REF
GND
V+
Q1
FB
191k
49.9k
+12V AT 2A
BST
DH
LX
PGND
SKIP
SHDN
VIN
4.75V TO6V
C2
150
μ
F
C3
150
μ
F
0.33
μ
F
0.01
0.01
μ
F
C1
220
μ
F
D1
4.7
μ
F
L1
5
μ
H
L1 = 2x SUMIDA CDRH125-100 IN PARALLEL
D1 = MOTOROLA MBR640
Q1 = MOTOROLA MTD20N03HDL
C1 = SANYOOS-CON 220
μ
F, 10V
C2, C3 = SANYOOS-CON 150
μ
F, 16V
Figure 16. 5V-to-12V PWM Boost Converter
MAX797
CSL
CSH
VL
SYNC
REF
GND
V+
Q1
T1
Q2
FB
200k
200k
OUTPUT
+5V AT 500mA
BST
CMPSH-3A
DH
LX
DL
PGND
SKIP
HI EFF
LOW IQ
SHDN
INPUT
3V TO6.5V
4.7
μ
F
0.33
μ
F
33m
220
μ
F
220
μ
F
100
μ
F
Q1, Q2 = Si9410DY
T1 = COILTRONIX CTX 10-4
10
μ
H PRIMARY, 1:1
START-UP SUPPLY VOLTAGE = 3.5V TYP
Figure 17. 90% Efficient, Low-Voltage PWM Flyback Converter (4 Cells to 5V)
____________________________________________Applic ation Circ uits (c ontinued)
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