Datasheet

© 2007-2011 Microchip Technology Inc. DS22071B-page 11
MCP73837/8
Note: Unless otherwise indicated, V
DD
= [V
REG
(typical) + 1V], I
OUT
= 30 mA and T
A
= +25°C, Constant-voltage mode.
FIGURE 2-19: Line Transient Response.
FIGURE 2-20: Line Transient Response.
FIGURE 2-21: Load Transient Response.
FIGURE 2-22: Load Transient Response.
FIGURE 2-23: V
AC
Start Delay
(I
OUT
= 1A).
FIGURE 2-24: V
USB
Start Delay (USB =
Low).
0
2
4
6
8
10
12
14
16
-200 -100
0
100 200 300 400 500 600 700
Time (µs)
Input Source (V)
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
Output Ripple (V)
I
OUT
= 100 mA
V
OUT
V
IN
0
2
4
6
8
10
12
14
16
-200 -100
0
100 200 300 400 500 600 700 800
Time (µs)
Input Source (V)
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
Output Ripple (V)
I
OUT
= 10 mA
V
OUT
V
IN
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
-4.0E-04 -2.0E-04 0.0E+00 2.0E-04 4.0E-04 6.0E-04 8.0E-04 1.0E-03 1.2E-03 1.4E-03 1.6E-03
Time (Minutes)
Output Current (A)
-0.12
-0.1
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
Output Ripple (V)
I
OUT
= 10 mA
I
OUT
V
OUT(AC)
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-4.0E-04 -2.0E-04
0.0E+00
2.0E-04 4.0E-04 6.0E-04 8.0E-04 1.0E-03 1.2E-03 1.4E-03 1.6E-03
Time (Minutes)
Output Current (A)
-0.3
-0.25
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
Output Ripple (V)
I
OUT
= 100 mA
I
OUT
V
OU
T
V
IN
V
OUT
V
IN
V
OUT