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Microchip Technology MCP1256/7/8/9EV Data Sheet

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MCP1256/7/8/9
DS21989B-page 6
 2006-2013 Microchip Technology Inc.
2.0
TYPICAL PERFORMANCE CURVES
NOTE: Unless otherwise indicated, C
IN 
=
 
C
OUT 
=
 
10 µF, C
1 
=
 
C
2 
=
 
1 µF,  I
OUT 
=
 
10 mA, and T
A
= +25°C.
FIGURE 2-1:
Efficiency (
) vs. Output 
Current (I
OUT
).
FIGURE 2-2:
Efficiency (
) vs. Output 
Current (I
OUT
).
FIGURE 2-3:
Efficiency (
) vs. Supply 
Voltage (V
IN
).
FIGURE 2-4:
Efficiency (
) vs. Supply 
Voltage (V
IN
).
FIGURE 2-5:
Efficiency (
) vs. Supply 
Voltage (V
IN
).
FIGURE 2-6:
Efficiency (
) vs. Supply 
Voltage (V
IN
).
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.
0
10
20
30
40
50
60
70
80
90
100
10
30
50
70
90
110
130
Output Current (mA)
E
ffi
ci
enc
y
 (%
)
V
IN
 = 1.8V
V
IN
 = 2.1V
V
IN
 = 2.4V
V
IN
 = 2.7V
0
10
20
30
40
50
60
70
80
90
10
30
50
70
90
110
130
Output Current (mA)
Ef
fi
c
ie
n
c
y
 (
%
)
V
IN
 = 2.7V
V
IN
 = 3.0V
V
IN
 = 3.3V
0
10
20
30
40
50
60
70
80
90
100
1.8
2.1
2.4
2.7
3.0
3.3
Input Voltage (V)
E
ffi
ci
en
c
y (%
)
I
OUT
 = 10 mA
Mode Transition
0
10
20
30
40
50
60
70
80
90
100
1.8
2.1
2.4
2.7
3.0
3.3
Input Voltage (V)
E
ffi
ci
enc
y
 (%
)
I
OUT
 = 25 mA
Mode Transition
0
10
20
30
40
50
60
70
80
90
100
1.8
2.1
2.4
2.7
3.0
3.3
Input Voltage (V)
Ef
fi
c
ie
n
c
y
 (
%
)
I
OUT
 = 50 mA
Mode Transition
0
10
20
30
40
50
60
70
80
90
100
1.8
2.1
2.4
2.7
3.0
3.3
Input Voltage (V)
E
ffi
ci
en
c
y (%
)
I
OUT
 = 100 mA
Mode Transition