RT6218A/B
Functional Block Diagram
VIN
6.5K
EN
3V
VEN_
REF
LX
-
+
UVLO
On-
Time
OC
Shutdown
Comparator
Internal
Regulator
VCC
PVCC
BOOT
UGATE
Control
Power
Stage &
Dead-time
Control
LX
UV
Protection
VCC
6µA
SS
FB
Ripple
Gen.
+
+
-
-
+
LGATE
MIN OFF
Comparator
VCC
PGOOD
Comparator
VIBIAS
VRef
GND
0.9V
REF
PGOOD
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6218A/B-01
October
2018
www.richtek.com
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