Datasheet

MCP1256/7/8/9
DS21989B-page 8  2006-2013 Microchip Technology Inc.
TYPICAL PERFORMANCE CURVES (CONTINUED)
NOTE: Unless otherwise indicated, C
IN
= C
OUT
= 10 µF, C
1
= C
2
= 1µF, I
OUT
= 10 mA, and T
A
= +25°C.
FIGURE 2-13: BYPASS Impedance
(R
BYPASS
) vs. Supply Voltage (V
IN
).
FIGURE 2-14: Output Voltage Ripple vs.
Time - Normal 2x Mode.
FIGURE 2-15: Output Voltage Ripple vs.
Time - Normal 2x Mode.
FIGURE 2-16: Output Voltage Ripple vs.
Time - Normal 2x Mode.
FIGURE 2-17: Output Voltage Ripple vs.
Time - Normal 1.5x Mode.
FIGURE 2-18: Output Voltage Ripple vs.
Time - Normal 1.5x Mode.
1.0
1.2
1.4
1.6
1.8
2.0
1.8 2.1 2.4 2.7 3.0 3.3 3.6
Input Voltage (V)
BYPASS Impedance (Ω)
-0.04
-0.03
-0.02
-0.01
0.00
0.01
0.02
0.03
0.04
012345678910
Time (µs)
Output Voltage Ripple (V)
V
IN
= 2.4V
I
OUT
= 10 mA
-0.04
-0.03
-0.02
-0.01
0.00
0.01
0.02
0.03
0.04
012345678910
Time (µs)
Output Voltage Ripple (V)
V
IN
= 2.4V
I
OUT
= 50 mA
-0.04
-0.03
-0.02
-0.01
0.00
0.01
0.02
0.03
0.04
012345678910
Time (µs)
Output Voltage Ripple (V)
V
IN
= 2.4
V
I
OUT
= 100 m
A
-0.04
-0.03
-0.02
-0.01
0.00
0.01
0.02
0.03
0.04
012345678910
Time (µs)
Output Voltage Ripple (V)
V
IN
= 3.0
V
I
OUT
= 10 m
A
-0.04
-0.03
-0.02
-0.01
0.00
0.01
0.02
0.03
0.04
012345678910
Time (µs)
Output Voltage Ripple (V)
V
IN
= 3.0
V
I
OUT
= 50 m
A