TPA2012D2 Texas Instruments Integrated Circuit (Quad Flat No-Lead) In Stock
The TPA2012D2 is a stereo Class-D audio power amplifier delivering 2 × 2.1 W into 4 Ω loads from a 5 V supply with up to 87% efficiency and an integrated boost converter. It supports differential and single-ended inputs with adjustable gain in a compact 20-pin QFN package. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat No-Lead
- Pin Count
- 21
- Lifecycle
- ACTIVE
- Datasheet
- TPA2012D2 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPA2012D2?
- Stereo Class-D output of 2 × 2.1 W into 4 Ω at 5 V with up to 87% efficiency, dramatically extending battery life in portable speakers
- Integrated boost converter generates the amplifier rail from a single Li-Ion cell, eliminating a discrete DC-DC stage
- Adjustable gain via external resistors and differential/single-ended input support in a 20-pin QFN package for compact portable audio designs
What is TPA2012D2 used for?
The TPA2012D2 targets battery-powered portable speakers, docking stations, tablets, and Bluetooth audio accessories where high efficiency and compact board area are paramount. Its integrated boost converter allows direct operation from a single Li-Ion cell voltage of 2.5 V to 4.2 V while maintaining full 2 × 2.1 W output power, simplifying the power-supply design. The 20-pin QFN footprint and differential input support make it straightforward to integrate with low-noise DACs and wireless audio SoCs in space-constrained consumer electronics.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TPA2012D2 datasheet?
TPA2012D2 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPA2012D2?
Compatible alternatives and drop-in replacements for TPA2012D2:
suggested
suggested
suggested
suggested
Frequently Asked Questions
What output power and load impedance does the TPA2012D2 support in a stereo portable speaker design?
The TPA2012D2 delivers 2 × 2.1 W of continuous output power into 4 Ω speaker loads at a 5 V rail with less than 1% THD+N. At a 3.6 V Li-Ion supply through the integrated boost converter, rated power is maintained, giving portable speaker designers a consistent loudness level across the battery discharge curve without external power management ICs.
How does the TPA2012D2's integrated boost converter simplify single-cell Li-Ion battery designs?
The on-chip boost converter steps up the Li-Ion battery voltage (2.5 V to 4.2 V) to the amplifier supply rail, typically 5 V, allowing the TPA2012D2 to maintain 2 × 2.1 W output even as the battery discharges to 2.5 V. This eliminates the need for a discrete boost IC, saves 2 to 4 passive components, and reduces total solution size by roughly 30% compared to a two-chip approach.
What efficiency does the TPA2012D2 achieve compared to a Class-AB amplifier driving the same 4 Ω load?
As a Class-D amplifier, the TPA2012D2 achieves up to 87% efficiency at typical listening levels, compared to roughly 50% for a Class-AB design at the same output power. The efficiency advantage translates to significantly less heat generation—at 2 W output and 87% efficiency, only about 0.3 W is dissipated as heat versus roughly 2 W for a Class-AB stage—making heatsinking unnecessary in the 20-pin QFN package.
How is gain adjusted on the TPA2012D2, and what gain range is achievable with standard resistor values?
Gain on the TPA2012D2 is set by a resistor network on the gain-select pins, allowing designers to choose from multiple fixed gain levels between approximately 6 dB and 24 dB. The differential input architecture rejects common-mode noise, so even at maximum gain of 24 dB, the signal-to-noise ratio remains high enough for consumer audio quality, making it compatible with DAC outputs at 1 Vrms full scale.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit