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ADP2139 数据表(PDF) 6 Page - Analog Devices

部件名 ADP2139
功能描述  Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter
PDF  16 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP2139 数据表(HTML) 6 Page - Analog Devices

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ADP2138/ADP2139
Rev. 0 | Page 6 of 16
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6 V, TA = 25°C, VEN = VIN, unless otherwise noted.
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01
0.1
1
IOUT (A)
VIN = 2.3V
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
Figure 3. Efficiency vs. Load Current, Across Input Voltage,
VOUT = 1.8 V, PSM Mode
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01
0.1
1
IOUT (A)
VIN = 2.3V
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
Figure 4. Efficiency vs. Load Current, Across Input Voltage,
VOUT = 1.8 V, PWM Mode
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01
0.1
1
IOUT (A)
VIN = 2.3V
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
Figure 5. Efficiency vs. Load Current, Across Input Voltage,
VOUT = 0.8 V, PSM Mode
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01
0.1
1
IOUT (A)
VIN = 2.3V
VIN = 3.6V
VIN = 4.2V
VIN = 5.5V
Figure 6. Efficiency vs. Load Current, Across Input Voltage,
VOUT = 0.8 V, PWM Mode
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01
0.1
1
IOUT (A)
VIN = 3.9V
VIN = 4.2V
VIN = 5.5V
Figure 7. Efficiency vs. Load Current, Across Input Voltage,
VOUT = 3.3 V, PSM Mode
100
90
80
70
60
50
40
30
20
10
0
0.001
0.01
0.1
1
IOUT (A)
VIN = 3.9V
VIN = 4.2V
VIN = 5.5V
Figure 8. Efficiency vs. Load Current, Across Input Voltage,
VOUT = 3.3 V, PWM Mode



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