25W (6 ohm) x 2-channel BTL power amplifier built-in standby and muting features incporporating various protection circuits Part AN7580 is manufactured by Panasonic (Pana).  

**Specifications:**  
- **Type:** Audio Power Amplifier IC  
- **Output Power:** 5.8W (typical at 9V, 4Ω, THD = 10%)  
- **Supply Voltage Range:** 4V to 12V  
- **Package:** SIP (Single In-line Package)  
- **Pins:** 5  
- **Features:** Built-in thermal shutdown protection, low distortion, and high ripple rejection.  

For exact details, refer to the official Panasonic datasheet.