LM4879SD/NOPB Texas Instruments Integrated Circuit (Small Outline No-lead) In Stock
The LM4879SD/NOPB is a mono Class-AB audio power amplifier from Texas Instruments delivering 1.2 W output power into 8 Ω loads across a 20 kHz bandwidth. It is housed in a compact 8-pin WSON package with exposed pad for efficient thermal management.
- Manufacturer
- Texas Instruments
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM4879SD/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5558(MOQ 335)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM4879SD/NOPB?
- 1.2 W Class-AB mono audio output into 8 Ω with 20 kHz full-range bandwidth
- Compact 8-pin WSON package with exposed thermal pad for improved heat dissipation
- Low shutdown current extends battery runtime in handheld and portable consumer devices
- Single-supply operation down to 2.7 V enables direct use with Li-ion or 3-cell NiMH batteries
What is LM4879SD/NOPB used for?
The LM4879SD/NOPB is optimized for mono speaker amplification in portable consumer electronics such as smartphones, MP3 players, and handheld gaming devices. Its Class-AB architecture delivers 1.2 W of clean audio power with minimal THD across the full 20 kHz audio band. The 8-pin WSON with exposed pad allows compact, thermally efficient PCB designs in space-limited mobile products.
What are the specifications of LM4879SD/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Bandwidth-Nom | 20kHz |
| Consumer IC Type | AUDIO AMPLIFIER |
| JESD-30 Code | S-PDSO-N8 |
| JESD-609 Code | e3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Power-Nom | 1.2W |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.15,32 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 10mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.8mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LM4879SD/NOPB datasheet?
LM4879SD/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4879SD/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output power does LM4879SD/NOPB deliver and at what supply voltage?
The LM4879SD/NOPB delivers 1.2 W of continuous mono output power into an 8 Ω speaker load. It operates from a single supply as low as 2.7 V, making it directly compatible with Li-ion battery systems and 3-cell NiMH packs commonly found in portable consumer electronics.
How does the exposed pad on the WSON package benefit LM4879SD/NOPB thermal performance?
The 8-pin WSON package includes an exposed bottom thermal pad that conducts heat directly to the PCB ground plane, significantly reducing the junction-to-board thermal resistance compared to standard SOIC or DIP packages. This allows the LM4879SD/NOPB to sustain 1.2 W output without exceeding the 150°C maximum junction temperature in still-air conditions.
For which portable applications is LM4879SD/NOPB a suitable speaker amplifier choice?
The LM4879SD/NOPB fits portable audio players, feature phones, handheld gaming consoles, and smart home speakers requiring a compact mono amplifier. Its 20 kHz bandwidth ensures accurate reproduction of all audible frequencies, while the low-power shutdown mode cuts quiescent current to near zero when audio output is not needed.
How does Class-AB topology in LM4879SD/NOPB compare to Class-D for portable speaker designs?
Class-AB amplifiers like the LM4879SD/NOPB require no output filter inductor, simplifying the PCB and reducing BOM cost compared to Class-D designs. At 1.2 W output levels the efficiency difference is small, while Class-AB provides lower EMI and better audio fidelity, making it preferred in high-quality portable speakers at supply voltages from 2.7 V to 5.5 V.
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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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 335+ | $1.1205 | $375.37 |
| 500+ | $1.0085 | $504.25 |
| 1000+ | $0.7440 | $744.00 |
| 10000+ | $0.6633 | $6633.00 |
| 100000+ | $0.5558 | $55580.00 |
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