National Semiconductor LM4923LQX/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 1.80 | Dhs. 1.80 |
| 15+ | Dhs. 1.72 | Dhs. 25.80 |
| 25+ | Dhs. 1.68 | Dhs. 42.00 |
| 50+ | Dhs. 1.59 | Dhs. 79.50 |
| 100+ | Dhs. 1.40 | Dhs. 140.00 |
| N+ | Dhs. 0.28 | 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 | 1.1W x 1 @ 8Ohm |
| Voltage - Supply | 2.4V ~ 5.5V |
| Features | Depop, Differential Inputs, Shutdown, Thermal Protection |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 8-WQFN (2x2) |
| Package / Case | 8-WQFN Exposed Pad |
| ROHS |  |
The LM4923LQX/NOPB is a mono Class AB audio amplifier designed for portable applications requiring high efficiency and low power consumption. Operating from 2.4V to 5.5V, it delivers up to 1.1W into an 8Ω load. Features include differential inputs for noise rejection, depop circuitry to eliminate clicks, and thermal protection for reliable operation. Its compact 8-WQFN package makes it ideal for space-constrained designs like Bluetooth speakers, radios, and intercoms.
- High Output Power: Delivers 1.1W into 8Ω, ensuring clear audio in portable devices.
- Low Voltage Operation: Works from 2.4V to 5.5V, compatible with single-cell batteries.
- Integrated Protection: Thermal protection and shutdown enhance system reliability.
- Compact Package: 8-WQFN (2x2mm) saves board space in miniaturized designs.
Portable Bluetooth Speaker
The LM4923LQX/NOPB delivers 1.1W into 8Ω, providing clear audio output for compact Bluetooth speakers while its low 2.4V minimum supply ensures compatibility with single-cell Li-ion batteries.
AM/FM Radio Audio Amplifier
With differential inputs and low noise, this amplifier enhances audio clarity in portable AM/FM radios, and the shutdown mode extends battery life during idle periods.
Intercom System
The thermal protection and depop circuitry ensure reliable operation and pop-free audio in intercom systems, even under continuous use in varying temperatures.
Alarm Driver
Its 1.1W output power is sufficient to drive alarm speakers, while the shutdown feature allows for low-power standby in security devices.
DIY Audio Projects
Hobbyists can use the LM4923LQX/NOPB in small audio projects due to its simple surface-mount package and minimal external component requirements.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4923LQX/NOPB | 8-WQFN (2x2) | 2.4V ~ 5.5V | 1.1W x 1 @ 8Ω |
| LM4902MM | 8-VSSOP | 2V ~ 5.5V | 675mW x 1 @ 8Ω |
| LM48860TLX/NOPB | 12-DSBGA | 2V ~ 5.5V | 50mW x 2 @ 32Ω |
- Q: What is the typical output power of the LM4923LQX/NOPB?
- A: It delivers 1.1W into an 8Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is from 2.4V to 5.5V.
- Q: Does this amplifier include thermal protection?
- A: Yes, it features thermal protection along with shutdown and depop circuitry.
- Q: What package is available for this IC?
- A: It comes in an 8-WQFN (2x2mm) exposed pad package.
- Q: Is the LM4923LQX/NOPB suitable for battery-powered devices?
- A: Yes, its low supply voltage range and shutdown feature make it ideal for portable applications.
LM4923LQX/NOPB.pdf
- Q: What is the typical output power of the LM4923LQX/NOPB?
- A: It delivers 1.1W into an 8Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is from 2.4V to 5.5V.
- Q: Does this amplifier include thermal protection?
- A: Yes, it features thermal protection along with shutdown and depop circuitry.
- Q: What package is available for this IC?
- A: It comes in an 8-WQFN (2x2mm) exposed pad package.
- Q: Is the LM4923LQX/NOPB suitable for battery-powered devices?
- A: Yes, its low supply voltage range and shutdown feature make it ideal for portable applications.
