Datasheet

 2004-2013 Microchip Technology Inc. DS21921C-page 7
MCP1612
TYPICAL PERFORMANCE CURVES (Continued)
Note: Unless otherwise indicated, V
IN
= V
CC
= V
SHDN
= 3.3V, C
OUT
= C
IN
= 10 µF, L = 3.3 µH, I
LOAD
= 100 mA,
T
A
=+25°C. Boldface specifications apply over the T
A
range of -40°C to +85°C.
FIGURE 2-7: Power-Up from V
IN
.
FIGURE 2-8: Power-Up from Shutdown.
FIGURE 2-9: Load Transient Response.
FIGURE 2-10: Load Transient Response.
FIGURE 2-11: Line Transient Response.
FIGURE 2-12: Line Transient Response.
V
IN
2.0V/DIV
V
OUT
1.0V/DIV
Start-up from V
IN
= 0V to 3.3V
1.0 ms/DIV
V
OUT
= 1.8V
SHDN
2.0V/DIV
V
OUT
1.0V/DIV
Start-up from SHDN
1.0 ms/DIV
V
OUT
= 1.8V
V
OUT
200 mV/DIV
I
OUT
500 mA/DIV
I
OUT
= 100 mA to 800 mA
50 µs/DIV
V
OUT
= 1.8V
V
OUT
100 mV/DIV
I
OUT
500 mA/DIV
I
OUT
= 100 mA to 800 mA
500 µs/DIV
V
IN
= 5.0V
V
OUT
= 3.3V
V
IN
2.0V/DIV
V
OUT
50 mV/DIV
Line Step Response, V
IN
= 3.0V to 4.0V
200 µs/DIV
V
OUT
= 1.8V
I
OUT
= 800 mA
V
IN
2.0V/DIV
V
OUT
50 mV/DIV
Line Step Response, V
IN
= 4.5V to 5.5V
200 µs/DIV
V
OUT
= 3.3V
I
OUT
= 800 mA