Datasheet

MCP1755/1755S
DS25160A-page 14  2012 Microchip Technology Inc.
Note 1: Unless otherwise indicated V
R
=3.3V, C
OUT
= 1 µF Ceramic (X7R), C
IN
= 1 µF Ceramic (X7R), I
L
=1mA,
T
A
=+25°C, V
IN
=V
R
+1V or V
IN
= 3.6V (whichever is greater), SHDN =V
IN
, package = SOT-223
FIGURE 2-31: Short Circuit Current
Foldback.
FIGURE 2-32: Dynamic Load Response.
FIGURE 2-33: Dynamic Load Response.
FIGURE 2-34: Start-up Delay From SHDN
to 90% V
OUT
.
2.0
3.0
4.0
5.0
6.0
u
tput Voltage (V)
V
IN
= 6.0V
V
OUT
= 5.0V
0.0
1.0
0 0.1 0.2 0.3 0.4 0.5
O
u
Output Current (A)
Increasing Load
Decreasing Load
V
OUT
(AC coupled, 200 mV/Div)
I
OUT
(200 mA/Div)
Time=20 µs/Div
V
OUT
=3.3V
I
OUT
=100 µA to 300 mA
V
OUT
(AC coupled, 200 mV/Div)
I
OUT
(200 mA/Div)
Time=20 µs/Div
V
OUT
=3.3V
I
OUT
=1 mA to 300 mA
300
400
500
600
700
800
900
1000
p
Delay Time (µs)
+25 °C
-20 °C
+90 °C
V
OUT
= 5.0V
0
100
200
300
6 8 10 12 14 16
Startu
p
Input Voltage (V)
+125 °C
-40 °C