This part is a kind of semiconductor called AN5276.

Function of this product has 5 W X 2-ch (19V/ 8 ohm) power amplifier with variable audio output and volume control.

Manufacturers : Panasonic Semiconductor

Image and pinout :

Some of the text within the PDF file :

ICs for Audio Common Use AN5276 5 W × 2-ch (19V, 8 Ω) power amplifier with variable audio output and volume control Unit : mm 29.75±0.30 28.0±0.3 20.0±0.3 s Features • Few external components : • No Boucherot cells(output C, R) • No Bootstrap Capacitors • No Negative Feeback Capacitors • Built-in muting circuit • Built-in stand-by circuit • Built-in various protection circuits (Load-short, thermal, over-voltage and current) • High ripple rejection(55 dB) • Compatible with AN5275, AN5277 • Operating voltage range 10 V to 24 V(19 V typ.) R1.8 0.6 +0.10 0.25 –0.05 2.54 1 0.6 –0.05 (1.27) (10.0) +0.15 (12.5) 1.2±0.1 1.45±0.15 (1.2) 19.1±0.3 21.9±0.3 HSIP012-P-0000A s Applications • TV s Block Diagram Att. Ripple filter Att. Con Protection [ ... ]

AN5276 PDF Datasheet Download