RT8282B RICHTEK [Richtek Technology Corporation], RT8282B Datasheet - Page 3

• Manufacturer Part Number: RT8282B
• Description: 2A, 23V, 1.2MHz Synchronous Step-Down Converter
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Function Block Diagram
DS8282B-01 March 2011
VIN
EN
SS
5k
Comparator
3V
Shutdown
1.2V
2.7V
6µA
Comparator
Lockout
+
-
V
VA V
CC
Regulator
+
-
Internal
CC
FB
0.4V
0.8V
Comparator
Foldback
Control
UV
+
-
+
+
-
EA
Oscillator
COMP
Comparator
Slope Comp
Current
+
-
S
R
Current Sense
Amplifier
Q
Q
+
-
130mΩ
130mΩ
RT8282B
VA
www.richtek.com
BOOT
SW
GND
3