MAX1717 查看數據表（PDF） - Maxim Integrated
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MAX1717 Datasheet PDF : 33 Pages
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Dynamically Adjustable, Synchronous
Step-Down Controller for Notebook CPUs
Typical Operating Characteristics (continued)
(Circuit of Figure 1, components of Table 1, V+ = +12V, VDD = VCC = SKP/SDN = +5V, VOUT = 1.6V, TA = +25°C, unless otherwise noted.)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
1000 1000kHz VOLTAGE POSITIONED, CIRCUIT 5,
SKIP MODE
800
ICC + IDD
600
400
200
0
5
40
I+
10
15
20
25
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
30
ICC + IDD
I+
20
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
40
30
20
ICC + IDD
I+
10
300kHz VOLTAGE POSITIONED,
CIRCUIT 2, PWM MODE
0
5
10
15
20
25
INPUT VOLTAGE (V)
LOAD-TRANSIENT RESPONSE
300kHz STANDARD APPLICATION, CIRCUIT 1,
PWM MODE
A
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
40
30
ICC + IDD
20
I+
10
550kHz VOLTAGE POSITIONED,
CIRCUIT 3, PWM MODE
0
5
10
15
20
25
INPUT VOLTAGE (V)
LOAD-TRANSIENT RESPONSE
300kHz VOLTAGE POSITIONED,
CIRCUIT 2, PWM MODE
A
10
1000kHz VOLTAGE POSITIONED,
CIRCUIT 5, PWM MODE
0
5
10
15
20
25
INPUT VOLTAGE (V)
LOAD-TRANSIENT RESPONSE
550kHz VOLTAGE POSITIONED, CIRCUIT 3,
PWM MODE
A
B
10μs/div
A = VOUT, 50mV/div, AC-COUPLED
B = INDUCTOR CURRENT, 10A/div
LOAD-TRANSIENT RESPONSE
1000kHz +5V, CIRCUIT 4, PWM MODE
A
B
10μs/div
A = VOUT, 50mV/div, AC-COUPLED
B = INDUCTOR CURRENT, 10A/div
LOAD-TRANSIENT RESPONSE
1000kHz VOLTAGE POSITIONED, CIRCUIT 5,
PWM MODE
A
B
B
B
5μs/div
A = VOUT, 50mV/div, AC-COUPLED
B = INDUCTOR CURRENT, 10A/div
4μs/div
A = VOUT, 50mV/div, AC-COUPLED
B = INDUCTOR CURRENT, 10A/div
4μs/div
A = VOUT, 50mV/div, AC-COUPLED
B = INDUCTOR CURRENT, 10A/div
8 _______________________________________________________________________________________
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