The MAX98502 is a high-efficiency, Class-D audio amplifier with an integrated boost converter that provides a constant output power. The battery supply voltage range is wide. The boost converter operates at 2MHz and requires only a small sum of external inductance (2.2μH). capacitance. The automatic level control battery tracking function reduces the output swing of the power supply voltage drop and prevents the battery voltage from collapsing. Amplifier's differential input and internal fully differential design. The MAX98502 also has three gain settings (around 6dB, 15.5dB and 20dB), which is a logic input choice. The MAX98502 is available in a small, 0.5mm pitch 16 solder ball WLP package (2.1mm x 2.1mm). It is specified by the extended temperature range of -40 ° C to + 85 ° C.
Key features
Enhanced Class D output
Integrated automatic level control
Output Power
2.2W into 8Ω, 10% THD + N
1.7W into 8Ω, 1% THD + N
4.1W to 4Ω, 10% THD + N
3.4W to 4Ω, 1% THD + N
Wide supply voltage range of 2.5V to 5.5V
Undervoltage lockout protection
High total efficiency 87%
High step switching frequency (up to 2MHz)
Activity emission limit low EMI
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Guangdong Magic Electronic Limited , https://www.magicmax.cc