MAX608ESA Ver la hoja de datos (PDF) - Maxim Integrated
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MAX608ESA Datasheet PDF : 12 Pages
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5V or Adjustable, Low-Voltage,
Step-Up DC-DC Controller
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
EXT RISE/FALL TIME vs. SUPPLY VOLTAGE
250
REFERENCE OUTPUT RESISTANCE vs.
TEMPERATURE
250
1.506
REFERENCE vs. TEMPERATURE
200
200
CEXT = 2200pF
CEXT = 1000pF
150
CEXT = 470pF
150
CEXT = 100pF
100
100
50
50
10µA
50µA
100µA
1.504
1.502
1.500
1.498
1.496
1.494
0
2
4
6
8
10
12
SUPPLY VOLTAGE (V)
MAXIMUM SWITCH ON-TIME vs.
TEMPERATURE
16.5
16.0
15.5
-60 -30
0 30 60 90 120 150
TEMPERATURE (°C)
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
SHUTDOWN CURRENT vs. TEMPERATURE
4.0
3.5
3.0
2.5
2.0
V+ = 15V
1.5
V+ = 8V
1.0
0.5
V+ = 4V
0
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
1.492
-60 -40 -20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
MINIMUM SWITCH OFF-TIME vs.
TEMPERATURE
2.30
2.25
2.20
-60 -30
0 30 60 90 120 150
TEMPERATURE (°C)
HEAVY-LOAD SWITCHING WAVEFORMS
(VOUT = 5V)
VOUT
A
0V
B
ILIM
0A
C
MEDIUM-LOAD SWITCHING WAVEFORMS
(VOUT = 5V)
VOUT
A
0V
ILIM
B
0A
C
2µs/div
VIN = 3V, IOUT = 930mA, VOUT = 5V
A = EXT VOLTAGE, 5V/div
B = INDUCTOR CURRENT, 1A/div
C = VOUT RIPPLE, 50mV/div, AC-COUPLED
20µs/div
VIN = 3V, IOUT = 490mA, VOUT = 5V
A = EXT VOLTAGE, 5V/div
B = INDUCTOR CURRENT, 1A/div
C = VOUT RIPPLE, 50mV/div, AC-COUPLED
4 _______________________________________________________________________________________
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