參數(shù)資料
型號: MAX730AMJA
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: 5V, Step-Down, Current-Mode PWM DC-DC Converters
中文描述: 2 A SWITCHING REGULATOR, 210 kHz SWITCHING FREQ-MAX, CDIP8
封裝: CERDIP-8
文件頁數(shù): 12/16頁
文件大?。?/td> 229K
代理商: MAX730AMJA
M
5V, S tep-Down,
Current-Mode PWM DC-DC Converters
12
______________________________________________________________________________________
C1
1.23V
1M
±35%
SS
R1
510k
SS CLAMP
FROM SHDN
MAX730A
MAX738A
MAX744A
Figure 2. Block Diagram of Soft-Start Circuitry
MAX730A
MAX738A
MAX744A
SHDN
V+
1
SS
3
GND
REF
6
2
C6
0.01
μ
F
CC
OUT
4
5
LX
7
D1
1N5817
L1
*
OUTPUT
+5V
C4
*
C5
330pF
C3
*
C2
1
μ
F
8
R1
510k
C1
0.1
μ
F
*
SEE TABLE 2 FOR COMPONENT VALUES AND SUPPLIERS.
PART
MAX730A
MAX738A
MAX744A
INPUT SUPPLY RANGE (V)
6.0 to 11.0
6.0 to 16.0
10.2 to 16.0
6.0 to 9.0
9.0 to 16.0
GUARANTEED OUTPUT CURRENT AT 5V (mA)
450
450
750
500
750
NOTE:
PIN NUMBERS REFER TO8-PIN PACKAGES.
C7
2.2
μ
F
OUTPUT
L2
25
μ
H
FILTER
OUTPUT
MAX730A +5.2V TO+11.0V
MAX738A/MAX744A +6.0V TO+16.0V
OPTIONAL LOWPASS OUTPUT FILTER
Figure 3. Standard +5V Step-Down Application Circuit
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