MAX1800EHJ 查看數據表（PDF） - Maxim Integrated
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MAX1800EHJ Datasheet PDF : 24 Pages
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Digital Camera Step-Up
Power Supply
Typical Operating Characteristics
(Circuit of Figure 1, VINPUT = 2.4V, TA = +25°C, unless otherwise noted.)
MAIN OUTPUT
EFFICIENCY vs. LOAD CURRENT
100
VIN = 2.5V
90
80
70
VIN = 2.0V
60
VIN = 1.5V
50
40
MAIN OUTPUT
EFFICIENCY vs. LOAD CURRENT
100
90 VIN = 3.0V
80
70
VIN = 2.5V
60
VIN = 2.0V
50
VIN = 1.5V
40
30
30
20
20
10
VOUT = 2.7V
0
1
10
100
1000
LOAD CURRENT (mA)
10
0
1
VOUT = 3.3V
10
100
1000
LOAD CURRENT (mA)
MAIN OUTPUT
EFFICIENCY vs. LOAD CURRENT
100
90 VIN = 3.0V
80
70
VIN = 2.5V
60
VIN = 2.0V
50
VIN = 1.5V
40
30
20
10
VOUT = 5V
0
1
10
100
1000
LOAD CURRENT (mA)
MINIMUM STARTUP CURRENT
vs. INPUT VOLTAGE
600
500
400
300
200
100
0
0
0.5 1.0 1.5 2.0 2.5
INPUT VOLTAGE (V)
REFERENCE VOLTAGE vs.
TEMPERATURE
1.260
1.255
1.250
1.245
1.240
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
1.253
1.252
1.251
1.250
1.249
1.248
1.247
0
REFERENCE VOLTAGE
vs. REFERENCE CURRENT
50 100 150 200 250
REFERENCE CURRENT (µA)
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