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700-mW Mono, Differential Input, Class-AB Audio Amplifier with Active Low Shutdown

Inventory: 4,965
Custom reel may be available

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Packaging information

Package | Pins HVSSOP (DGN) | 8
Operating temperature range (°C) I (-40 to 85)
Package qty | Carrier: 2,500 | LARGE T&R
Custom reel may be available
View more packaging information

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • Fully Specified for 3.3-V and 5-V Operation
  • Wide Power Supply Compatibility 2.5 V – 5.5 V
  • Power Supply Rejection at 217 Hz
    • 84 dB at VDD = 5 V
    • 81 dB at VDD = 3.3 V
  • Output Power for RL = 8
    • 700 mW at VDD = 5 V
    • 250 mW at VDD = 3.3 V
  • Ultralow Supply Current in Shutdown Mode . . . 1.5 nA
  • Thermal and Short-Circuit Protection
  • Surface-Mount Packaging
    • SOIC
    • PowerPAD™ MSOP
    • MicroStar Junior™ (BGA)

PowerPAD and MicroStar Junior are trademarks of Texas Instruments.


The TPA751 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 TPA751 can deliver 250-mW of continuous power into a BTL 8- load at less than 0.6% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation is optimized for narrower band applications such as wireless 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 supply current of 1.5 nA during shutdown. The TPA751 is available in a 3.0 × 3.0 mm MicroStar Junior™ (BGA), 8-pin SOIC surface-mount package and a surface-mount PowerPAD™ MSOP.

Qty Price
1-99 $1.34
100-249 $1.11
250-999 $0.80
1,000+ $0.60

Alternative carriers

Part number TPA751DGN
Package qty | Carrier 80 | TUBE
Inventory 560
Qty | Price (USD) 1ku | $0.70