RT7270
Function Block Diagram
VIN
Internal
Regulator
Shutdown
V
A
V
CC
Comparator
1.2V
+
-
Lockout
Comparator
-
2.5V
+
V
CC
6µA
SS
0.925V
+
+EA
-
0.4V
Oscillator
Foldback
Control
+
-
UV
Comparator
Current Sense
Amplifier
Slope Comp
+
-
R
SENSE
V
A
BOOT
S
+
R
-
Current
Comparator
Q
Q
110mΩ
5kΩ
EN
SW
90mΩ
GND
FB
COMP
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7270-03 March 2018
www.richtek.com
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