MAX1710 Ver la hoja de datos (PDF) - Maxim Integrated
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MAX1710 Datasheet PDF : 28 Pages
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High-Speed, Digitally Adjusted
Step-Down Controllers for Notebook CPUs
_____________________________Typical Operating Characteristics (continued)
(7A CPU supply circuit of Figure 1, TA = +25°C, unless otherwise noted.)
FREQUENCY vs. TEMPERATURE
(VIN = 15V, VO = 2.0V)
315
ON-TIME vs. TEMPERATURE
474
CURRENT-LIMIT TRIP POINT
vs. TEMPERATURE
30
472
310
IO = 7A
470
IO = 1A
25
ILIM = 400kΩ
305
468
20
300
IO = 4A
295
290
TON = OPEN
285
-60 -40 -20 0
IO = 1A
20 40 60 80 100
TEMPERATURE (°C)
466
464
462
460
IO = 4A OR 7A
458
456
-60 -40 -20 0 20 40 60
TEMPERATURE (°C)
80 100
15
ILIM = VCC
10
5
ILIM = 100kΩ
0
-60 -40 -20 0 20 40 60
TEMPERATURE (°C)
80 100
CONTINUOUS TO DISCONTINUOUS
INDUCTOR CURRENT POINT
vs. INPUT VOLTAGE
0.9
0.8
VO = 2.0V
0.7
VO = 1.6V
0.6
0.5
VO = 1.3V
0.4
0.3
0.2
0.1
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENTS
vs. INPUT VOLTAGE
(SKIP MODE, f = 550kHz)
0.7
ICC
0.6
0.5
0.4
0.3
IBATT
0.2
0.1
0
0
IDD
5 10 15 20 25 30
INPUT VOLTAGE (V)
INDUCTOR CURRENT PEAKS AND
VALLEYS vs. INPUT VOLTAGE
(AT CURRENT-LIMIT POINT)
14.0
13.5
IPEAK
13.0
12.5
12.0
11.5
11.0
IVALLEY
10.5
10.0
0
20
18
16
14
12
10
8
6
4
2
0
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENTS
vs. INPUT VOLTAGE
(PWM MODE, f = 300kHz)
IDD
IBAT
ICC
5 10 15 20 25 30
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENTS
vs. INPUT VOLTAGE
(SKIP MODE, f = 300kHz)
0.7
ICC
0.6
0.5
0.4
IBATT
0.3
0.2
0.1
IDD
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENTS
vs. INPUT VOLTAGE
(PWM MODE, f = 550kHz)
20
18
IDD
16
14
12
10
8
IBAT
6
4
2
ICC
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
6 _______________________________________________________________________________________
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