MCP1258T データシートの表示（PDF） - Microchip Technology
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MCP1258T
Microchip Technology
MCP1258T Datasheet PDF : 24 Pages
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MCP1256/7/8/9
2.0 TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
NOTE: Unless otherwise indicated, CIN = COUT = 10 μF, C1 = C2 = 1 μF, IOUT = 10 mA, and TA= +25°C.
100
90
80
70
60
50
40
30
20
10
0
10
VIN = 1.8V
VIN = 2.1V
VIN = 2.4V
VIN = 2.7V
30
50
70
90 110 130
Output Current (mA)
FIGURE 2-1:
Current (IOUT).
Efficiency (η) vs. Output
100
90
80
70
60
50
40
30
20
10
0
1.8
2.1
FIGURE 2-4:
Voltage (VIN).
IOUT = 25 mA
Mode Transition
2.4
2.7
3.0
3.3
Input Voltage (V)
Efficiency (η) vs. Supply
90
80
70
60
50
40
30
20
10
0
10
30
FIGURE 2-2:
Current (IOUT).
VIN = 2.7V
VIN = 3.0V
VIN = 3.3V
50
70
90 110 130
Output Current (mA)
Efficiency (η) vs. Output
100
90
80
70
60
50
40
30
20
10
0
1.8
IOUT = 50 mA
Mode Transition
2.1
2.4
2.7
3.0
3.3
Input Voltage (V)
FIGURE 2-5:
Voltage (VIN).
Efficiency (η) vs. Supply
100
90
80
70
60
50
40
30
20
10
0
1.8
IOUT = 10 mA
Mode Transition
2.1
2.4
2.7
3.0
3.3
Input Voltage (V)
FIGURE 2-3:
Voltage (VIN).
Efficiency (η) vs. Supply
100
90
80
70
60
50
40
30
20
10
0
1.8
IOUT = 100 mA
Mode Transition
2.1
2.4
2.7
3.0
3.3
Input Voltage (V)
FIGURE 2-6:
Voltage (VIN).
Efficiency (η) vs. Supply
DS21989A-page 6
© 2006 Microchip Technology Inc.
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