Source: https://oshwhub.com/hshgc/tps5430-dan-dian-yuan-zhuan-zheng-fu-shuang-dian-yuan
This board is designed to power the NE5532 preamplifier, and you can choose its own use.
The 104 capacitor can be soldered to a patch (0603) or plugged in (monolithic capacitor) according to your own needs. If you want to power the preamplifier of the power amplifier, a monolithic capacitor is recommended.
When R1 and R4 are 1.1k, the voltage is about 12.5v. When the resistance difference is 0.1k, the output voltage difference is 1V (I also forgot about the direct and inverse ratio).
Buck module
Input voltage: 5.5~32V
Output voltage: ±3~±15V
Positive power output current: 3A MAX
Negative power supply output current: 2A MAX
The test is normal, you can eat with confidence
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