Diodes AP3406A - Manual (Page 8)

Data Sheet
1.1MHz, 800mA SYNCHRONOUS DC-DC BUCK CONVERTER AP3406A
Feb. 2013 Rev. 1. 5 BCD Semiconductor Manufacturing Limited
8
0.1 1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
V
IN
=3.6V
V
OUT
=1.8V
L=10 µ H
Effi
cien
c
y
(%)
Output Current (A)
TSOT-23-5
MSOP-10
0.1 1
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
V
IN
=4.2V
V
OUT
=3.3V
L=10 µ H
TSOT-23-5
MSOP-10
Ef
fi
ci
en
cy
(
%
)
Output Current (A)
Typical Performance Characteristics (Continued)
10 µs/div 40 µs/div
Figure 12. Short Circuit Protection Figure 13. Short Circuit Recovery
(V
IN
=3.6V, V
OUT
=1.8V, no load) (V
IN
=3.6V, V
OUT
=1.8V, no load)
Fi gure 14. Efficiency vs. Output Current Figure 15. Efficiency vs. Output Current
V
OUT
1V/div
V
SW
2V/div
I
L
1A/div
V
OUT
1V/div
V
SW
2V/div
I
L
1A/div