National Semiconductor LM4819LDX/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 1.16 | Dhs. 1.16 |
| 15+ | Dhs. 1.14 | Dhs. 17.10 |
| 25+ | Dhs. 1.12 | Dhs. 28.00 |
| 50+ | Dhs. 1.05 | Dhs. 52.50 |
| 100+ | Dhs. 0.93 | Dhs. 93.00 |
| N+ | Dhs. 0.19 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | Boomer® |
| Packaging | Bulk | |
| 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-WSON (2.5x2.5) |
| Package / Case | 8-WFDFN Exposed Pad |
| ROHS |  |
This mono Class AB audio amplifier delivers up to 350mW into a 16Ω load from a 2V to 5.5V supply. Designed for space-constrained applications, it integrates depop circuitry, differential inputs, and a shutdown mode to minimize power consumption. Ideal for portable speakers, radios, intercoms, and alarm systems, the LM4819LDX/NOPB offers reliable performance in a compact 8-WSON package.
- Low Voltage Operation: Works from 2V to 5.5V, enabling direct battery-powered use.
- Compact Package: 8-WSON (2.5x2.5mm) saves board space in portable designs.
- Depop Circuitry: Eliminates audible clicks during power-up and shutdown.
- Differential Inputs: Reduces noise and improves signal integrity.
- Integrated Shutdown: Extends battery life by reducing quiescent current.
Portable Bluetooth Speaker
The LM4819LDX/NOPB's low 2V minimum supply and 350mW output make it perfect for battery-powered Bluetooth speakers, ensuring clear audio with minimal power drain.
Headphone Amplifier
With its differential inputs and low noise, this mono amplifier excels as a headphone driver in portable media players, delivering high-fidelity sound at low voltages.
AM/FM Radio Audio Stage
Its shutdown feature and small footprint allow integration into compact AM/FM radios, providing efficient audio amplification for mono speaker outputs.
Intercom System
The depop circuitry eliminates popping noises during power-up, making it suitable for intercoms where clean audio start-up is critical.
Alarm Driver
Driving a small alarm speaker from a 3.3V or 5V microcontroller rail is straightforward with the LM4819, thanks to its wide voltage range and stable operation.
DIY Audio Projects
Hobbyists can easily build a mono amplifier module using the LM4819 in a WSON package, benefiting from its built-in thermal shutdown and short-circuit protection.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4819LDX/NOPB | 8-WSON (2.5x2.5) | 2V ~ 5.5V | 350mW x 1 @ 16Ω |
| LM4819MH/NOPB | 8-MSOP | 2V ~ 5.5V | 350mW x 1 @ 16Ω |
| LM4819MM/NOPB | 8-VSSOP | 2V ~ 5.5V | 350mW x 1 @ 16Ω |
- Q: What is the typical output power of the LM4819LDX/NOPB?
- A: It delivers 350mW into a 16Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is from 2V to 5.5V.
- Q: Does this amplifier require external shutdown control?
- A: Yes, it includes a shutdown pin for power-saving modes.
- Q: Can I use differential input signals?
- A: Yes, the LM4819 supports differential inputs for improved noise rejection.
- Q: What is the package size?
- A: It comes in an 8-WSON (2.5x2.5mm) package, ideal for compact designs.
LM4819LDX/NOPB.pdf
- Q: What is the typical output power of the LM4819LDX/NOPB?
- A: It delivers 350mW into a 16Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is from 2V to 5.5V.
- Q: Does this amplifier require external shutdown control?
- A: Yes, it includes a shutdown pin for power-saving modes.
- Q: Can I use differential input signals?
- A: Yes, the LM4819 supports differential inputs for improved noise rejection.
- Q: What is the package size?
- A: It comes in an 8-WSON (2.5x2.5mm) package, ideal for compact designs.
