RT8284N
Function Block Diagram
VIN
Internal
Regulator
Oscillator
Current Sense
Amplifier
Slope Comp
Shutdown
Comparator
V
VA
CC
+
-
VA
Foldback
Control
1.2V
+
-
0.5V
+
BOOT
Lockout
Comparator
-
130mΩ
130mΩ
S
Q
Q
UV
5k
Comparator
SW
-
EN
SS
+
-
R
+
2.7V
Current
GND
3V
V
Comparator
CC
6µA
+
+
-
0.923V
Error Amp
FB
COMP
Copyright 2012 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS8284N-03 May 2012
www.richtek.com
3