Data sheet, Typical performance characteristics (continued), 25ºc, v – Diodes AP3503F User Manual
Page 7: 12v, v
Data Sheet
340kHz, 3A Synchronous DC-DC Buck Converter AP3503F
Oct. 2012 Rev. 1. 3 BCD Semiconductor Manufacturing Limited
7
Typical Performance Characteristics (Continued)
T
A
=25ºC, V
IN
=12V, V
OUT
=3.3V, unless otherwise noted.
Figure 8. High-side Switch On-resistance Figure 9. Low-side Switch On-resistance
vs. Case Temperature vs. Case Temperature
Figure 10. Output Ripple (I
OUT
=3A) Figure 11. Load Transient (I
OUT
=1.5A to 3A)
V
IN_AC
200mV/div
V
OUT_AC
20mV/div
I
L
2A/div
V
SW
10V/div
Time 4
μs/div
V
OUT_AC
200mV/div
I
OUT
1A/div
Time 200
μs/div
-60
-40
-20
0
20
40
60
80
100
120
140
40
60
80
100
120
140
160
Low-side
Switc
h O
n-r
esist
ance (
m
Ω
)
Case Temperature (
o
C)
-60
-40
-20
0
20
40
60
80
100
120
140
40
60
80
100
120
140
160
180
200
High-sid
e Switc
h
O
n-resist
a
nce (m
Ω
)
Case Temperature (
o
C)