MAX1702B 查看數據表（PDF） - Maxim Integrated
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MAX1702B Datasheet PDF : 19 Pages
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MAX1702B
Triple Output Power Management IC for
Microprocessor-Based Systems
Typical Operating Characteristics
(Circuit of Figure 1, TA = +25°C, unless otherwise noted.)
REG1 EFFICIENCY
vs. LOAD CURRENT
100
90
80
70
60
50
40
30
20
10
0
1
10
100
1000
LOAD CURRENT (mA)
NO LOAD QUIESECNT CURRENT
vs. SUPPLY VOLTAGE
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
REG1 OUTPUT VOLTAGE
vs. LOAD CURRENT
3.33
3.31
TA = +85°C
3.29
3.27
TA = -40°C
TA = 0°C
TA = +40°C
3.25
3.23
3.21
0
100 200 300 400 500 600 700
LOAD CURRENT (mA)
REG3 INCREMENTAL EFFICIENCY
vs. LOAD CURRENT
100
90
80
VOUT3 = 3.3V
70
VOUT3 = 1.8V VOUT3 = 2.5V
60
50
40 NOTE: INCREMENTAL EFFICIENCY
IS REG3 OUTPUT POWER OVER
30 ADDITIONAL INPUT POWER.
20 REG1 AND REG3 QUIESCENT
CURRENT IS REFLECTED IN
10 REG1’S EFFICIENCY GRAPH.
0
1
10
100
1000
LOAD CURRENT (mA)
REG1 DROPOUT VOLTAGE
vs. LOAD CURRENT (VIN = 3.3V)
350
300
250
200
150
100
50
0
0 100 200 300 400 500 600 700 800 900 1000
LOAD CURRENT (mA)
REG2 OUTPUT VOLTAGE
vs. LOAD CURRENT
1.107
1.105
1.103
1.101
1.099
1.097
1.095
0
TA = +40°C
TA = +85°C
TA = -40°C TA = 0°C
50 100 150 200 250 300
LOAD CURRENT (mA)
REG2 INCREMENTAL EFFICIENCY
vs. LOAD CURRENT
100
90 VOUT2 = 1.3V VOUT2 = 1.1V
80
70
60
VOUT2 = 1V
50
40 NOTE: INCREMENTAL EFFICIENCY
IS REG2 OUTPUT POWER OVER
30 ADDITIONAL INPUT POWER.
20 REG1 AND REG3 QUIESCENT
CURRENT IS REFLECTED IN
10 REG1’S EFFICIENCY GRAPH.
0
1
10
100
1000
LOAD CURRENT (mA)
REG3 DROPOUT VOLTAGE
vs. LOAD CURRENT (VIN = 3.3V)
160
VOUT3 = 3.3V
140
120
100
80
60
40
20
0
0 50 100 150 200 250 300 350 400 450
LOAD CURRENT (mA)
REG3 OUTPUT VOLTAGE
vs. LOAD CURRENT (VOUT3 = 3.3V)
3.325
3.315
3.305
TA = +85°C
3.295
3.285
3.275
TA = -40°C TA = 0°C TA = +40°C
3.265
0
50 100 150 200 250 300 350 400 450
LOAD CURRENT (mA)
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