IC Block Diagram
-11-
-
U20 U23 U31 3.3V/1A 3-TERMINAL POSITIVE VOL TAGEREGULATOR LD1117-3.3 SOT-223
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Thermal
Protection +
-
For Adjustable Output, disconnect A1 and A2, connect B
INPUT
OUTPUT
ADJ/
GND
A1 A2
B
For Fixed Output, connect A1 and A2, disconnect B 1
2
3