Microchip Technology ADM00423 Data Sheet
© 2011 Microchip Technology Inc.
DS22285A-page 11
MCP16321/2
Note:
Unless otherwise indicated, V
IN
= 12V, EN = Floating (Internally pulled up), C
IN
= 20 µF, C
OUT
= 2x22 µF,
L = 4.7 µH (XAL6060-472MEB), I
LOAD
= 200 mA, T
A
= +25°C. MCP16321 maximum output current = 1A.
FIGURE 2-25:
Maximum V
IN
to V
OUT
Ratio
for Continuous Switching.
FIGURE 2-26:
Light Load Switching
Waveforms.
FIGURE 2-27:
Heavy Load Switching
Waveforms.
FIGURE 2-28:
Startup From Enable.
FIGURE 2-29:
Startup From V
IN.
FIGURE 2-30:
Load Transient Response.
0
5
10
15
20
25
30
0.9
1.2
1.5
1.8
2.1
Max V
IN
(V)
V
OUT
(V)
Typical Mininimum Duty Cycle = 7%
V
OUT
= 3.3V
I
OUT
= 50 mA
V
IN
= 12V
V
OUT
= 3.3V
I
OUT
= 500 mA
V
IN
= 12V
V
OUT
= 3.3V
I
OUT
= 200 mA
V
IN
= 12V
V
OUT
= 3.3V
I
OUT
= 200 mA
V
IN
= 12V
V
OUT
= 3.3V
I
OUT
= 100 mA to 600 mA
V
IN
= 12V