MAX649 データシートの表示（PDF） - Maxim Integrated
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MAX649
Maxim Integrated
MAX649 Datasheet PDF : 16 Pages
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5V/3.3V/3V or Adjustable, High-Efficiency,
Low IQ, Step-Down DC-DC Controllers
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
EXT RISE AND FALL TIMES
vs. TEMPERATURE (1nF)
130
120 CEXT = 1nF
V+ = 5V, tRISE
110
100
90
80
V+ = 5V, tFALL
70
60
50
V+ = 12V, tRISE
40
30
20
-60 -40 -20
V+ = 12V, tFALL
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
EXT RISE AND FALL TIMES
vs. TEMPERATURE (5nF)
500
CEXT = 5nF
450
400
V+ = 5V, tRISE
350
300
V+ = 12V, tRISE
250
V+ = 5V, tFALL
200
150
100
V+ = 12V, tFALL
50
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
DROPOUT VOLTAGE
vs. LOAD CURRENT
1000
MAX649, VOUT = 5V
900 MAX652, VOUT = 3V
800
700
600
MAX651, VOUT = 3.3V
500
400
300
200
100
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
LOAD CURRENT (A)
DROPOUT VOLTAGE
vs. TEMPERATURE
1100
MAX649
1000
900
MAX652
800
MAX651
700
600
-60 -40 -20
ILOAD = 1A
CIRCUIT OF FIGURE 1
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
CS TRIP LEVEL
vs. TEMPERATURE
235
230
225
220
215
210
205
200
195
190
185
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
REFERENCE OUTPUT RESISTANCE
vs. TEMPERATURE
250
REFERENCE OUTPUT VOLTAGE
vs. TEMPERATURE
1.506
1.504
1.502
1.500
1.498
1.496
1.494
1.492
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
200
IREF = 10µA
150
IREF = 50µA
100
50
IREF = 100µA
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
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