Texas Instruments LM4819MM/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.46 | $1.46 |
| 15+ | $1.42 | $21.30 |
| 25+ | $1.39 | $34.75 |
| 50+ | $1.31 | $65.50 |
| 100+ | $1.16 | $116.00 |
| N+ | $0.23 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | Boomer® |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Part Status | Active |
| Type | Class AB |
| Output Type | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 350mW x 1 @ 16Ohm |
| Voltage - Supply | 2V ~ 5.5V |
| Features | Depop, Differential Inputs, Shutdown |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 8-VSSOP |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| ROHS |
The LM4819MM/NOPB is a mono Class AB audio amplifier from Texas Instruments, designed for low-power portable applications. Operating from 2V to 5.5V, it delivers 350mW into a 16 Ohm load. Features include depop circuitry to eliminate startup noise, differential inputs for improved noise immunity, and a shutdown mode for power saving. Housed in a compact 8-VSSOP package, it is ideal for headphones, portable speakers, and battery-powered devices.
- Low Distortion: Class AB design ensures high-fidelity audio with minimal crossover distortion.
- Noise Reduction: Differential inputs reject common-mode noise for cleaner sound.
- Pop-Free Startup: Depop circuitry prevents audible clicks during power-on.
- Power Saving: Shutdown mode reduces current consumption to extend battery life.
Portable MP3 Player Headphone Amplifier
The LM4819MM/NOPB's low voltage operation (2V-5.5V) and 350mW output into 16 Ohms make it perfect for driving headphones in portable music players.
Battery-Powered Speaker
Its depop feature eliminates popping noises during power-up, ensuring a clean audio experience in small battery-powered speakers.
Intercom System
Differential inputs allow for noise rejection, making it suitable for intercoms where signal integrity is important.
Alarm Driver
The shutdown mode helps conserve power in alarm systems, while the Class AB design provides low distortion for clear alerts.
DIY Audio Project
With its simple 8-pin VSSOP package, hobbyists can easily integrate this amplifier into custom audio projects like mini amplifiers or signal boosters.
- Q: What is the supply voltage range for the LM4819MM/NOPB?
- A: It operates from 2V to 5.5V.
- Q: How much output power does it provide?
- A: It delivers 350mW into a 16 Ohm load.
- Q: What are the key features of this amplifier?
- A: It includes depop circuitry, differential inputs, and shutdown mode.
- Q: What is the amplifier class?
- A: It is a Class AB amplifier.
- Q: What applications is it suitable for?
- A: Ideal for portable devices like MP3 players, headphones, and small speakers.
- Q: What is the supply voltage range for the LM4819MM/NOPB?
- A: It operates from 2V to 5.5V.
- Q: How much output power does it provide?
- A: It delivers 350mW into a 16 Ohm load.
- Q: What are the key features of this amplifier?
- A: It includes depop circuitry, differential inputs, and shutdown mode.
- Q: What is the amplifier class?
- A: It is a Class AB amplifier.
- Q: What applications is it suitable for?
- A: Ideal for portable devices like MP3 players, headphones, and small speakers.

LM4819MM/NOPB.pdf