MCP1256 Microchip Technology, MCP1256 Datasheet - Page 6

• Manufacturer Part Number: MCP1256
• Description: Regulated 3.3V, Low-Ripple Charge Pump with Low-Operating Current SLEEP Mode or BYPASS Mode
• Manufacturer: Microchip Technology

MCP1256/7/8/9
2.0
NOTE: Unless otherwise indicated, C
FIGURE 2-1:
Current (I
FIGURE 2-2:
Current (I
FIGURE 2-3:
Voltage (V
DS21989A-page 6
Note:
100
90
80
70
60
50
40
30
20
10
100
90
80
70
60
50
40
30
20
10
0
90
80
70
60
50
40
30
20
10
0
0
10
1.8
10
TYPICAL PERFORMANCE CURVES
OUT
OUT
IN
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.
).
).
30
).
30
V
2.1
IN
= 1.8V
Output Current (mA)
Output Current (mA)
50
50
Efficiency ( ) vs. Output
Efficiency ( ) vs. Output
Efficiency ( ) vs. Supply
Input Voltage (V)
2.4
Mode Transition
70
70
2.7
90
90
IN
= C
V
V
V
V
V
V
3.0
I
OUT
IN
IN
IN
IN
IN
IN
110
110
OUT
= 2.7V
= 3.0V
= 3.3V
= 2.1V
= 2.4V
= 2.7V
= 10 mA
= 10 μF, C
130
130
3.3
1
= C
2
FIGURE 2-4:
Voltage (V
FIGURE 2-5:
Voltage (V
FIGURE 2-6:
Voltage (V
= 1 μF, I
100
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0
1.8
1.8
1.8
OUT
IN
IN
IN
= 10 mA, and T
).
).
).
2.1
2.1
2.1
Efficiency ( ) vs. Supply
Efficiency ( ) vs. Supply
Efficiency ( ) vs. Supply
Input Voltage (V)
Input Voltage (V)
Input Voltage (V)
© 2006 Microchip Technology Inc.
2.4
2.4
2.4
Mode Transition
Mode Transition
Mode Transition
A
= +25°C.
2.7
2.7
2.7
I
OUT
3.0
I
3.0
3.0
I
OUT
OUT
= 100 mA
= 25 mA
= 50 mA
3.3
3.3
3.3