Nuvoton Technology Corporation NAU8318YG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.56 | $0.56 |
| 15+ | $0.54 | $8.10 |
| 25+ | $0.53 | $13.25 |
| 50+ | $0.50 | $25.00 |
| 100+ | $0.44 | $44.00 |
| N+ | $0.09 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Nuvoton Technology Corporation |
| Product Series | |
| Packaging | Tray | |
| Part Status | Active |
| Type | Class D |
| Output Type | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 1.73W x 1 @ 8Ohm; 3.2W x 1 @ 4Ohm |
| Voltage - Supply | 1.71V ~ 1.89V |
| Features | - |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 20-QFN (4x4) |
| Package / Case | 20-WFQFN Exposed Pad |
| ROHS |
The NAU8318YG is a high-efficiency mono Class D amplifier designed for portable and battery-powered applications. Operating from 1.71V to 1.89V, it delivers up to 3.2W into 4Ω loads, making it ideal for compact speakers, toys, and radios. The 20-QFN package with exposed pad ensures excellent thermal performance, while the wide -40°C to 85°C temperature range guarantees reliability. Its low voltage operation directly supports single-cell lithium-ion batteries without boost converters.
- High Output Power: Delivers 3.2W into 4Ω, suitable for loud audio in small devices.
- Ultra-Low Voltage Operation: Works from 1.71V, enabling direct battery connection.
- Class D Efficiency: Minimizes heat and extends battery life in portable gear.
- Compact Package: 20-QFN (4x4mm) saves space for miniaturized designs.
- Wide Temperature Range: Reliable from -40°C to 85°C for diverse applications.
Portable Bluetooth Speakers
The NAU8318YG's 3.2W output into 4Ω and low 1.71V supply make it perfect for compact Bluetooth speakers, delivering loud audio with Class D efficiency.
Battery-Powered Toys
Its low voltage operation and small QFN package suit battery-powered toys, providing clear mono sound while maximizing runtime.
USB-Powered Desktop Speakers
With 1.73W into 8Ω, this amplifier can drive small desktop speakers from a USB bus, offering efficient amplification for computer audio.
Portable Radios
The NAU8318YG's mono output and wide temperature range make it reliable for portable AM/FM radios, ensuring consistent performance outdoors.
Intercom Systems
Its high efficiency and compact size enable integration into intercom units, delivering clear voice amplification with minimal heat generation.
- Q: What is the supply voltage range for the NAU8318YG?
- A: It operates from 1.71V to 1.89V.
- Q: What output power can the NAU8318YG deliver?
- A: It provides 1.73W into 8Ω or 3.2W into 4Ω in mono mode.
- Q: Is the NAU8318YG a Class D amplifier?
- A: Yes, it is a mono Class D amplifier, offering high efficiency.
- Q: What package does the NAU8318YG come in?
- A: It is available in a 20-QFN (4x4mm) package with an exposed pad.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 85°C.
- Q: What is the supply voltage range for the NAU8318YG?
- A: It operates from 1.71V to 1.89V.
- Q: What output power can the NAU8318YG deliver?
- A: It provides 1.73W into 8Ω or 3.2W into 4Ω in mono mode.
- Q: Is the NAU8318YG a Class D amplifier?
- A: Yes, it is a mono Class D amplifier, offering high efficiency.
- Q: What package does the NAU8318YG come in?
- A: It is available in a 20-QFN (4x4mm) package with an exposed pad.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 85°C.

NAU8318YG.pdf