參數(shù)資料
型號(hào)： MAX639MJA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
中文描述： 1 A SWITCHING REGULATOR, CDIP8
封裝： CERAMIC, DIP-8
文件頁(yè)數(shù)： 4/12頁(yè)
文件大?。?/td> 166K
代理商： MAX639MJA
0
10
MAX640
OUTPUT VOLTAGE RIPPLE vs.
INPUT VOLTAGE
25
100
M
V+ (V)
O
7
75
150
3
4
5
6
8
9
11
12
I
OUT
= 25mA
L = 100
μ
H
125
50
L = 220
μ
H
L = 470
μ
H
0
10
MAX653
OUTPUT VOLTAGE RIPPLE vs.
INPUT VOLTAGE
25
100
M
V+ (V)
O
7
75
150
3
4
5
6
8
9
11
12
I
LOAD
= 25mA
125
50
L = 220
μ
H
L = 470
μ
H
L = 100
μ
H
M
5V /3.3V /3V /Adjustable, High-Effic ienc y,
Low I
Q
, S tep-Down DC-DC Converters
4
_______________________________________________________________________________________
100
50
10
μ
100
μ
1
EFFICIENCY vs.
OUTPUT CURRENT
60
M
OUTPUT CURRENT (A)
E
70
80
90
1m
10m
100m
L = 100
μ
H
MAX639, V+ = 6V
MAX640, V+ = 4.3V
MAX653, V+ = 4V
100
10
MAXIMUM OUTPUT CURRENT vs.
INPUT VOLTAGE
200
M
V+ (V)
M
7
250
3
4
5
6
8
9
11
12
150
MAX640
MAX653
MAX639
L = 100
μ
H
80
10
EFFICIENCY vs.
INPUT VOLTAGE
85
95
M
V+ (V)
E
7
90
100
3
4
5
6
8
9
11
12
I
OUT
= 100mA
MAX639
MAX640
MAX653
80
10
EFFICIENCY vs.
INPUT VOLTAGE
85
95
M
V+ (V)
MAX639
E
7
90
100
3
4
5
6
8
9
11
12
L = 470
μ
H
I
OUT
= 25mA
MAX639
MAX640
MAX653
25
10
MAXIMUM OUTPUT CURRENT vs.
INPUT VOLTAGE
65
M
V+ (V)
M
7
75
3
4
5
6
8
9
11
12
55
MAX640
MAX653
MAX639
45
35
L = 470μH
0
10
OUTPUT VOLTAGE RIPPLE vs.
INPUT VOLTAGE
25
100
M
INPUT VOLTAGE (V)
O
7
75
150
5
6
8
9
11
12
L = 100
μ
H
125
50
L = 220
μ
H
L = 470
μ
H
I
OUT
= 25mA
_____________________________Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 3, internal feedback, L = 100μH, T
A
= +25°C, unless otherwise noted.)
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