Datasheet

© 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com
FAN21SV04 • Rev. 1.0.3 11
FAN21SV04 — TinyBuck™ 4 A, 24 V Single-Input Integrated Synchronous Buck Regulator
Typical Performance Characteristics (Continued)
Typical operating characteristics using the Figure 10 circuit. V
IN
=12 V unless otherwise specified.
Figure 24. CLK and V
OUT
at Startup Figure 25. Transient Response, 2-4 A Load
Figure 26. Startup on Pre-Bias Figure 27. Restart on Fault
Figure 28. Shutdown, 1 A Load
Figure 29. Slave (500 KHz Free-Run to 600 KHz
Synchronization)
V
OUT
, 1V/div
PGOOD, 5V/div
EN, 2V/div
SW, 10V/div
SW, 10V/div
CLK, 5V/div
EN, 1V/div
CLK, 5V/div
SW, 5V/div
CLK, 5V/div
EN, 5V/div
V
OUT
, 100mv/div
I
OUT
, 2A/div
V
OUT
, 1V/div
V
OUT
, 1V/div
PGOOD, 5V/div