參數(shù)資料
型號: MAX639CPA
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, PDIP8
封裝: PLASTIC, DIP-8
文件頁數(shù): 4/12頁
文件大?。?/td> 166K
代理商: MAX639CPA
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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MAX639CPA+ 功能描述:直流/直流開關轉換器 5/3.3/3V Adjustable Step-Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
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MAX639CSA+T 功能描述:直流/直流開關轉換器 5/3.3/3V Adjustable Step-Down RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
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