MAX1722 데이터 시트보기 (PDF) - Maxim Integrated
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MAX1722 Datasheet PDF : 12 Pages
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1.5µA IQ, Step-Up DC-DC Converters
in Thin SOT23-5
Typical Operating Characteristics
(Figure 3 (MAX1723), Figure 7 (MAX1722), Figure 8 (MAX1724), VBATT = VIN = 1.5V, L = 10µH, CIN = 10µF, COUT = 10µF, TA = +25°C,
unless otherwise noted.)
EFFICIENCY vs. LOAD CURRENT
(VOUT = 5.0V)
100
EFFICIENCY vs. LOAD CURRENT
(VOUT = 3.3V)
100
EFFICIENCY vs. LOAD CURRENT
(VOUT = 2.5V)
100
VIN = 3.3V
90
VIN = 2.0V
VIN = 4.0V
VIN = 2.5V
90
VIN = 2.0V
90
VIN = 2.0V
80
80
80
VIN = 1.5V
70
70
70
60
50
0.01
200
VIN = 1.5V
VIN = 1.0V
L = DO1606
0.1
1
10 100 1000
LOAD CURRENT (mA)
MAXIMUM OUTPUT CURRENT
vs. INPUT VOLTAGE
VOUT = 2.5V
160
120
VOUT = 5.0V
80
VOUT = 3.3V
40
0
0
1
2
3
4
5
INPUT VOLTAGE (V)
60
VIN = 1.0V
VIN = 1.5V
L = DO1606
50
0.01 0.1
1
10 100 1000
LOAD CURRENT (mA)
STARTUP VOLTAGE
vs. LOAD CURRENT
2.4
RESISTIVE LOAD
2.2 VOUT = 5.0V
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.01
0.1
1
10
100
LOAD CURRENT (mA)
60
50
0.01
2.0
VIN = 1.0V L = DO1606
0.1
1
10 100 1000
LOAD CURRENT (mA)
QUIESCENT CURRENT INTO OUT
vs. OUTPUT VOLTAGE
1.8 NO LOAD
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
OUTPUT VOLTAGE (V)
1.2
1.0
0.8
0.6
0.4
0.2
0
-40
STARTUP VOLTAGE vs.
TEMPERATURE
NO LOAD
-15 10
35
60
85
TEMPERATURE (°C)
SWITCHING WAVEFORMS
ILX
500mA/div
VOUT
50mV/div
VLX
2V/div
1µs/div
IOUT = 50mA, VOUT = 5.0V, VIN = 3.3V
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