ap3409 BCD Semiconductor Manufacturing Limited, ap3409 Datasheet - Page 9

• Manufacturer Part Number: ap3409
• Description: 3a, 4mhz High Efficiency Synchronous Buck Converter
• Manufacturer: BCD Semiconductor Manufacturing Limited

Typical Performance Characteristics (Continued)
V
Jul. 2010 Rev. 1. 0
2V/div
2V/div
2A/div
1V/div
1A/div
3A, 4MHz High Efficiency Synchronous Buck Converter
V
V
IN
V
I
OUT
OUT
OUT
SW
=V
I
L
DD
=V
Figure 14. Short Circuit Protection
Figure 12. Start-up from VIN
(V
PVDD
IN
(V
=3.3V V
IN
=3.3V, T
=3.3V, V
Time 1ms/div
Time 4ms/div
OUT
=2.5V, I
A
OUT
=25℃, unless otherwise specified.
=2.5V)
OUT
=3A)
9
V
50mV/div
OUT
1A/div
1V/div
1A/div
(AC)
V
I
I
OUT
OUT
OUT
Figure 13. Load Transient Response
(V
Figure 15. Short Circuit Recovery
BCD Semiconductor Manufacturing Limited
IN
=3.3V, V
(V
Preliminary Datasheet
IN
=3.3V, V
Time 4ms/div
OUT
Time 200µs/div
=2.5V, I
OUT
=2.5V)
OUT
=0.5 to 3A)
AP3409