TPA301D vs TPA321DR Comparison
Detailed side-by-side comparison of TPA301D by Texas Instruments and TPA321DR by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | TPA301D | TPA321DR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Amplifier ICs | Motor Drivers |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.35 | $0.00 |
| Product Type | Mono Class-AB audio power amplifier | Mono analog-input Class-AB audio amplifier |
| Rated Output Power | 350 mW | — |
| Verified 3.3 V Output Power | 250 mW continuous into 8 ohm BTL at less than 1% THD+N throughout the voice band | — |
| Supply Voltage Operation | 3.3 V and 5 V | — |
| Output Topology | Bridge-tied load (BTL) | — |
| Audio Channel Count | 1 channel, mono | — |
| Package | 8-pin SOIC | 8-pin SOIC surface-mount package |
| Mounting Type | Surface mount | — |
| Shutdown Quiescent Current | 0.15 uA | — |
| Protection Features | Thermal and short-circuit protection | Short-circuit protection and thermal protection |
| Operating Temperature | -40 C to +85 C | -40°C to +85°C |
| RoHS Status | Compliant | [DATA_NEEDED: RoHS status] |
| Lifecycle Status | Active | — |
| Manufacturer Product Page | TPA301 | — |
| Manufacturer Data Sheet Revision | Rev. E | — |
| Distributor Package Description | 8-SOIC | — |
| Distributor Price Reference | $0.5783 at MOQ 10, as of 2026-10-23 | — |
| Maximum Output Power | — | 700mW |
| Output Power at 3.3V, 8Ω | — | 250mW continuous power at less than 1% THD+N |
| Supply Voltage Range | — | 2.5V to 5.5V |
| Supported Supply Operation | — | 3.3V and 5V |
| Output Configuration | — | Mono bridge-tied load (BTL) |
| Output Type | — | Differential output |
| Input Configuration | — | Differential inputs |
| Maximum Load Resistance | — | 8Ω |
| Package Pin Count | — | 8 pins |
| Power Dissipation | — | 725mW maximum |
| Quiescent Supply Current | — | Ultralow supply current in shutdown mode; exact value not provided |
| Gain | — | Set with external resistors |
| REACH Status | — | [DATA_NEEDED: REACH status] |
| AEC-Q100 Qualification | — | [DATA_NEEDED: AEC-Q100 qualification status] |