MAX17000A 查看數據表（PDF） - Maxim Integrated
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MAX17000A Datasheet PDF : 32 Pages
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MAX17000A
Complete DDR2 and DDR3 Memory
Power-Management Solution
Typical Operating Characteristics
(MAX17000A Circuit of Figure 1, VIN = 12V, VDD = VCC = 5V, SKIP = GND, TA = +25°C, unless otherwise noted.)
SMPS 1.5V EFFICIENCY
vs. LOAD CURRENT
100
SKIP MODE
90 STDBY = LOW
80
70
SKIP MODE
60 STDBY = HIGH
PWM MODE
STDBY = HIGH OR LOW
50
40
30
20
10
0.01
0.1
1
LOAD CURRENT (A)
VIN = 7V
10
SMPS 1.5V EFFICIENCY
vs. LOAD CURRENT
100
SKIP MODE
90 STDBY = LOW
80
70
60
50
SKIP MODE
STDBY = HIGH
PWM MODE
STDBY = HIGH OR LOW
40
30
20
10
0.01
VIN = 12V
0.1
1
10
LOAD CURRENT (A)
SMPS 1.5V EFFICIENCY
vs. LOAD CURRENT
100
SKIP MODE
90 STDBY = LOW
80
70
60
50
SKIP MODE
STDBY = HIGH
40
PWM MODE
STDBY = HIGH OR LOW
30
20
10
0.01
VIN = 20V
0.1
1
10
LOAD CURRENT (A)
SMPS 1.5V OUTPUT VOLTAGE
vs. LOAD CURRENT
1.51
SKIP MODE
SMPS SWITCHING FREQUENCY
vs. LOAD CURRENT
350
PWM MODE
300
250
SMPS VALLEY-CURRENT LIMIT
vs. INPUT VOLTAGE
10.50
RSENSE = 2mΩ
10.25
1.50
PWM MODE
1.49
0.001
VIN = 12V
0.01
0.1
1
10
LOAD CURRENT (A)
200
150
SKIP MODE
100
50
0
0
VIN = 12V
VOUT = 1.5V
2
4
6
8
10
LOAD CURRENT (A)
10.00
9.75
9.50
4
8 12 16 20 24 28
INPUT VOLTAGE (V)
NO-LOAD SUPPLY CURRENT
vs. INPUT VOLTAGE
100
NO LOAD
PWM MODE, ICC + IDD
10
PWM MODE, IIN
STDBY = HIGH, SKIP MODE, ICC + IDD
1
STDBY = LOW, SKIP MODE, ICC + IDD
PRESET 1.5V OUTPUT
VOLTAGE DISTRIBUTION
50
SAMPLE SIZE = 150
TA = +85°C
TA = +25°C
40
30
20
0.1
0.01
4
SKIP MODE, IIN
8 12 16 20 24 28
INPUT VOLTAGE (V)
10
0
1.490
1.495 1.500 1.505
OUTPUT VOLTAGE (V)
1.510
8
Maxim Integrated
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