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Differential Headphone amplifiers require positive and negative voltages. In this reference design, both voltages are generated from a single input voltage with an all integrated split-rail converter. It only requires one inductor and a minimal amount of external components to achieve a high efficiency power supply that keeps the distortion of the system very low. End users benefit from High Fidelity audio performances with longer playback time in their mobile application.
- 90% Peak Efficiency
- Tiny solution size: 5.9x6.9 mm
- Low Distortion: THD+N < 0.00075%
- Programmable outputs
- Small BOM — only 7 external components required
- This circuit design is tested. All necessary software, a Test Report and a Design File are included.