LA4425A
IC Usage Notes
Maximum ratings
If the IC is used in the vicinity of the maximum ratings, even a slight variation in conditions may cause the maximum ratings to
be exceeded, thereby leading to a breakdown.
Printed circuit board
When drawing the printed circuit pattern, refer to the sample printed circuit pattern. Be careful not to form a feedback loop
between input and output.
Comparison of External Components
External Parts
Output coupling capacitor
Input coupling capacitor
Bootstrap capacitor
Our ICs now in use
LA4425A
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Feedback capacitor
Filter capacitor
Phase compensation capacitor
Oscillation correction polyester
film capacitor
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Oscillation correction resistor
Total
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8 pcs.
2 pcs.
Note: The power supply capacitor is not counted as a power IC part.
Sample Printed Circuit Pattern
LA4425A
GND
CV
CC
= 1000 µF
–
+
V
CC
+
–
IN
–
+
OUT
Co = 1000 µF
Ci = 2.2 µF GND
Cu-foiled side 78.0 × 29.0 mm2
VN – VCC
ICCO – VCC
Supply voltage, VCC – V
Supply voltage, VCC – V
No.3309-3/8
ETC [ ETC ]
