ape3061 APEC, ape3061 Datasheet - Page 5

• Manufacturer Part Number: ape3061
• Description: Step-up Pwm Dc/dc Converter Description
• Manufacturer: APEC

APPLICATION INFORMATION
Output Capacitor Selection
Layout Guidance
ensure regulation loop stability. The output capacitor must have low impedance at the
switching frequency. A low ESR capacitor sized for maximum RMS current must be
used. The low ESR requirements needed for low output ripple voltage.
voltage, and often much higher voltage ratings are needed to satisfy.
Add a 4.7uF output bypass capacitor in order to reduce output ripple effectively.
ensure proper operation of the APE3061. These items are also illustrated graphically
in below.
1. The power traces, including the NMOS Drain & Source trace, the inductor and the
2. The ground area for RSENSE and C1 must be closed and C2 closed VCC pin of
3. Keep the switching node, away from the sensitive FB node.
4. Do not trace signal line under inductor.
The capacitor voltage rating should be at least 1.5 times greater than the input
The ESR range of output capacitor is 30m~100mΩ at switch current more than 1.5A.
APE3061 to get good stability.
C1 trace should be kept short, direct and wide to allow large current flow.
Advanced Power
Electronics Corp.
The output capacitor is required to keep the output voltage ripple small and to
When laying out the PC board, the following suggestions should be taken to
APE3061
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