參數資料
型號: MAX651
廠商: Maxim Integrated Products, Inc.
英文描述: 3.3V or Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Controllers(3.3V/可調,高效率,低IQ值,步降DC-DC控制器)
中文描述: 5V/3.3V/3V或可調、高效率、低IQ、降壓型DC-DC控制器
文件頁數: 5/16頁
文件大?。?/td> 172K
代理商: MAX651
M
5V /3.3V /3V or Adjustable, High-Effic ienc y,
Low I
Q
, S tep-Down DC-DC Controllers
_______________________________________________________________________________________
5
130
120
20
EXT RISE AND FALL TIMES
vs. TEMPERATURE (1nF)
t
R
&
t
F
110
100
90
80
70
-60
-20
60
140
M
TEMPERATURE (°C)
20
100
-40
0
80
40
120
V+ = 5V, t
RISE
60
50
40
30
V+ = 5V, t
FALL
V+ = 12V, t
RISE
V+ = 12V, t
FALL
C
EXT
= 1nF
500
50
EXT RISE AND FALL TIMES
vs. TEMPERATURE (5nF)
450
t
R
&
t
F
400
350
-60
-20
60
140
M
TEMPERATURE (°C)
20
100
-40
0
80
40
120
V+ = 5V, t
RISE
300
250
150
200
100
V+ = 5V, t
FALL
V+ = 12V, t
RISE
C
EXT
= 5nF
V+ = 12V, t
FALL
1000
0
0
0.2
0.4 0.6
LOAD CURRENT (A)
0.8
1.0
1.2
1.4 1.6
DROPOUT VOLTAGE
vs. LOAD CURRENT
200
300
100
800
900
M
D
600
500
700
400
MAX649, V
OUT
= 5V
MAX652, V
OUT
MAX651, V
OUT
= 3.3V
1100
600
DROPOUT VOLTAGE
vs. TEMPERATURE
700
1000
D
900
800
MAX651
-60
-20
60
140
M
TEMPERATURE (°C)
20
100
-40
0
80
40
120
I
= 1A
CIRCUIT OF FIGURE 1
MAX649
MAX652
250
0
REFERENCE OUTPUT RESISTANCE
vs. TEMPERATURE
50
200
R
)
150
100
-60
-20
60
140
M
TEMPERATURE (°C)
20
100
-40
0
80
40
120
I
REF
= 10
μ
A
I
REF
= 50
μ
A
I
REF
= 100
μ
A
235
185
CS TRIP LEVEL
vs. TEMPERATURE
195
225
C
215
205
-60
-20
60
140
M
TEMPERATURE (°C)
20
100
-40
0
80
40
120
190
200
230
220
210
1.506
1.492
REFERENCE OUTPUT VOLTAGE
vs. TEMPERATURE
1.494
1.504
R
1.502
1.500
-60
-20
60
140
M
TEMPERATURE (°C)
20
100
-40
0
80
40
120
1.498
1.496
____________________________Typic al Operating Charac teristic s (c ontinued)
(T
A
= +25°C, unless otherwise noted.)
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