MAX1673 データシートの表示（PDF） - Maxim Integrated
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MAX1673 Datasheet PDF : 8 Pages
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Regulated, 125mA-Output,
Charge-Pump DC-DC Inverter
Typical Operating Characteristics
(Circuit of Figure 1, VIN = +5V, CFLY = 2.2µF, COUT = 22µF, TA = +25°C, unless otherwise noted.)
OUTPUT RIPPLE
vs. LOAD CURRENT (LIN MODE)
140
120
CFLY
=
COUT
10
COUT = 10µF
100
COUT = 22µF
80
60
40
COUT = 47µF
20
0
0 25 50 75 100 125 150
LOAD CURRENT (mA)
OUTPUT RIPPLE
vs. LOAD CURRENT (SKIP MODE)
250
COUT = 10µF
200
150
COUT = 22µF
100
50 COUT = 47µF
CFLY = COUT
10
0
0 25 50 75 100 125 150
LOAD CURRENT (mA)
-3.08
-3.07
-3.06
-3.05
-3.04
-3.03
-3.02
-3.01
-3.00
-2.99
-2.98
0
OUTPUT VOLTAGE
vs. LOAD CURRENT
SKIP MODE
LIN MODE
25 50 75 100 125 150
LOAD CURRENT (mA)
EFFICIENCY vs. LOAD CURRENT
(SKIP MODE)
100
90
VIN = 3.5V
80
VIN = 4V
70
VIN = 5V
60
50
40
30
20
10 VREF ≠ VIN
CIRCUIT OF FIGURE 4
0
0 20 40 60 80 100 120 140
LOAD CURRENT (mA)
EFFICIENCY vs. LOAD CURRENT
(LIN MODE)
90
80
VIN = 4V
70
VIN = 4.5V
60
50
VIN = 5V
40
30
20
10
0
0
VREF ≠ VIN
CIRCUIT OF FIGURE 4
20 40 60 80 100 120 140
LOAD CURRENT (mA)
EFFICIENCY vs. INPUT VOLTAGE
90
80
70
SKIP MODE
60
LIN MODE
50
VREF ≠ VIN
40 100mA LOAD
VOUT = -3V
CIRCUIT OF FIGURE 4
30
3.5 4.0 4.5 5.0 5.5 6.0
VIN (V)
DROPOUT OUTPUT RESISTANCE
vs. INPUT VOLTAGE
12
10
8
TA = +25°C
TA = +85°C
6
4
2
TA = -40°C
0
2
3
4
5
6
VIN (V)
QUIESCENT CURRENT vs. INPUT VOLTAGE
(LIN MODE)
12
DOES NOT INCLUDE BIAS CURRENT
FOR RESISTOR DIVIDER
10
8
6
4
2
VREF ≠ VIN
CIRCUIT OF FIGURE 4
0
2
3
4
5
6
VIN (V)
QUIESCENT CURRENT vs. INPUT VOLTAGE
(SKIP MODE)
45
DOES NOT INCLUDE BIAS CURRENT
40 FOR RESISTOR DIVIDER
35
30
25
20
15
10
5
0
2
3
4
5
6
VIN (V)
4 _______________________________________________________________________________________
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