Product Summary

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-mW 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 kHz, its operation was optimized for narrower band applications such as cellular
communications. The BTL configuration eliminates the need for external coupling capacitors on the output in
most applications, which is particularly important for small battery-powered equipment. This device features a
shutdown mode for power-sensitive applications with a quiescent current of 0.15 μA during shutdown. The
TPA301 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD MSOP, which
reduces board space by 50% and height by 40%

Parametrics

ABSOLUTE MAXIMUM RATINGS
VDD Supply voltage :6 V
VI Input voltage :–0.3 V to VDD +0.3 V
Continuous total power dissipation Internally limited (see Dissipation Rating Table)
TA Operating free-air temperature range :–40°C to 85°C
TJ Operating junction temperature range :–40°C to 150°C
Tstg Storage temperature range :–65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260℃

Features

FEATURES
Fully Specified for 3.3-V and 5-V Operation
? Wide Power Supply Compatibility 2.5 V - 5.5 V
? Output Power for RL = 8Ω
– 350 mW at VDD = 5 V, BTL
– 250 mW 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
– PowerPAD? MSOP

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
TPA301DG4
TPA301DG4
Texas Instruments
Audio Amplifiers 0.35-W Mono Audio Power Amplifier
Data Sheet
0-1: $0.43
1-25: $0.41
25-100: $0.29
100-250: $0.28
TPA301DGN
TPA301DGN
Texas Instruments
Audio Amplifiers 0.35W Mono
Data Sheet
0-1: $0.80
1-25: $0.73
25-100: $0.56
100-250: $0.56
TPA301DGNG4
TPA301DGNG4
Texas Instruments
Audio Amplifiers 0.35-W Mono Audio Power Amplifier
Data Sheet
0-1: $0.56
1-25: $0.52
25-100: $0.36
100-250: $0.36
TPA301DGNR
TPA301DGNR
Texas Instruments
Audio Amplifiers 0.35-W Mono Audio Power Amplifier
Data Sheet
0-1890: $0.30
1890-2000: $0.30
2000-2500: $0.30
2500-5000: $0.29
TPA301DGNRG4
TPA301DGNRG4
Texas Instruments
Audio Amplifiers 0.35-W Mono Audio Power Amplifier
Data Sheet
0-1890: $0.30
1890-2000: $0.30
2000-2500: $0.30
2500-5000: $0.29
TPA301DRG4
TPA301DRG4
Texas Instruments
Audio Amplifiers 0.35-W Mono Audio Power Amplifier
Data Sheet
0-1950: $0.22
1950-2000: $0.22
2000-2500: $0.22
2500-5000: $0.21
TPA301DR
TPA301DR
Texas Instruments
Audio Amplifiers .35W Mono Audio
Data Sheet
0-1: $0.42
1-25: $0.34
25-100: $0.26
100-250: $0.24
TPA301D
TPA301D
Texas Instruments
Audio Amplifiers 0.35W Mono Audio
Data Sheet
0-1: $0.63
1-25: $0.57
25-100: $0.44
100-250: $0.44