TPA301
FEATURES
- Fully Specified for 3.3-V and 5-V Operation
- Wide Power Supply patibility 2.5 V
- 5.5 V
- Output Power for RL = 8 Ω
- 350 m W at VDD = 5 V, BTL
- 250 m W at VDD = 3.3 V, BTL
- Ultra-Low Quiescent Current in Shutdown Mode . . . 0.15 µA
- Thermal and Short-Circuit Protection
- Surface-Mount Packaging
- SOIC
- Power PAD™ MSOP
D OR DGN PACKAGE (TOP VIEW)
SHUTDOWN 1
VO-
BYPASS 2
IN+ 3
IN-
VO+
DESCRIPTION
The TPA301 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA301 can deliver 250-m W of continuous power into a BTL 8-Ω load at less than 1% THD+N throughout voice band frequencies. Although this device is characterized out to 20 k Hz, its operation was optimized for narrower band applications such as cellular munications. The BTL configuration eliminates the need for external coupling capacitors on the output in most...
