ISL78213_15 Datasheet, PDF (4/16 Pages) Intersil Corporation – 3A Low Quiescent Current, High Efficiency Synchronous Buck Regulator

ISL78213
Block Diagram
SYNCH
SOSFoTft-
SHUTDOWN ^START
-
EN
BANDGAP ^0.8V _EAMP
-
3pF
27pF
390k
OSCILLATOR
+
COMP
-
+
SHUTDOWN
PWM/PFM
LOGIC
CONTROLLER
PROTECTION
DRIVER
VFB
6k
SLSOloPpEe
COMP
PG
SGND
+
0.736V _-
1ms
DELAY
+
OCP
-
+
CSA
-
1.4V
+
SKIP-
0.5V
ZERO-CROSS
SENSING
0.2V
-
SCP
+
FIGURE 2. FUNCTIONAL BLOCK DIAGRAM
VIN
LX
PGND
Submit Document Feedback
4
FN7550.3
May 12, 2015