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TPA721DR The Texas Instruments TPA721DR is a 700mW mono Class-AB audio amplifier designed for low-voltage applications. It accepts analog input and operates from a 2.5V to 5.5V supply.
Mfr Part #:

TPA721DR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments TPA721DR is a 700mW mono Class-AB audio amplifier designed for low-voltage applications. It accepts analog input and operates from a 2.5V to 5.5V supply.
✓ Total Stock: 5,943 pcs
$ Price Range: $0.47

TPA721DR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
3,443 pcs
On Request
3443 pcs On Request 1 On Request On Request 18+ On Request On Request
Risen Electronics ✓
Non-Authorised Inventory information
2,500 pcs
On Request
2500 pcs On Request 1 On Request On Request On Request On Request 2026-02-16 21:33:16
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TPA721DR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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TPA721DR Description

Short technical summary and product information.

The TPA721DR from Texas Instruments is a 700-mW, mono, analog input, Class-AB audio power amplifier. It is specifically developed for low-voltage applications requiring internal speakers.

 

This amplifier operates with a wide power supply compatibility ranging from 2.5 V to 5.5 V. At a 5V supply and an 8-ohm load, it can deliver 700 mW of output power. The device features a typical Total Harmonic Distortion + Noise (THD+N) of 0.5% at 1 kHz.

 

The TPA721DR is optimized for narrower band applications, such as wireless communications, and its bridge-tied load (BTL) configuration eliminates the need for external output coupling capacitors. It includes integrated depop circuitry, thermal protection, and short-circuit protection.

 

Available in SOIC and HVSSOP surface-mount packages, the TPA721DR is suitable for space-constrained designs. It also features a shutdown mode with a low supply current of 7 µA for power-sensitive applications.

TPA721DR Quick Information

Product Type: Audio Amplifier
Series: TPA721
Canonical Name: TPA721DR 700-mW Mono Analog Input Class-AB Audio Amplifier
Subcategory: General-purpose audio amplifiers

TPA721DR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TPA721DR Estimated Pricing

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1+ $0.47 $0.47

Estimated market price range - modelled values for guidance only, not live distributor offers.

TPA721DR Features

  • 700mW mono Class-AB audio amplifier.
  • Analog input, hardware control interface.
  • Wide 2.5V to 5.5V supply voltage range.
  • Low THD+N at 1 kHz.
  • Integrated depop and protection circuitry.

TPA721DR Applications

  • Ideal for low-voltage audio systems.
  • Suitable for wireless communication devices.
  • Used in portable battery-powered equipment.
  • Designed for internal speaker applications.

TPA721DR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range?

The power stage and analog supply voltages range from 2.5V to 5.5V.

What package options are available?

The TPA721DR is available in SOIC (D) and HVSSOP (DGN) packages.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C.

What is the output power?

The output power is 700mW into 8Ω at 5V, and 250mW into 8Ω at 3.3V.

What is the total harmonic distortion plus noise?

Typical THD+N is 0.5% at 1kHz.

What is the shutdown supply current?

The typical shutdown supply current is 7µA.

What type of audio input does it accept?

The amplifier accepts analog audio input.

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