National Semiconductor LM4910LQX/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 2.51 | Dhs. 2.51 |
| 15+ | Dhs. 2.41 | Dhs. 36.15 |
| 25+ | Dhs. 2.36 | Dhs. 59.00 |
| 50+ | Dhs. 2.23 | Dhs. 111.50 |
| 100+ | Dhs. 1.97 | Dhs. 197.00 |
| N+ | Dhs. 0.39 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | Boomer® |
| Packaging | Bulk | |
| Part Status | Active |
| Type | Class AB |
| Output Type | Headphones, 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 35mW x 2 @ 32Ohm |
| Voltage - Supply | 2.2V ~ 5.5V |
| Features | Depop, 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 LM4910LQX/NOPB is a stereo Class AB headphone amplifier from National Semiconductor, delivering 35mW per channel into 32Ω loads. Operating from 2.2V to 5.5V, it is designed for portable audio devices such as media players, smartphones, and laptops. Features include depop, shutdown, and thermal protection for reliable, pop-free operation. The compact 8-WQFN (2x2mm) package saves valuable PCB space.
- Ultra-Compact Package: 8-WQFN (2x2mm) enables miniaturized designs.
- Low Power Consumption: Ideal for battery-powered portable devices.
- Integrated Depop: Eliminates popping noises during power-up and shutdown.
- Thermal Protection: Prevents damage from overheating.
- Wide Supply Range: 2.2V to 5.5V supports USB and single-cell batteries.
Portable Media Player
The LM4910LQX/NOPB provides 35mW per channel into 32Ω headphones, ensuring clear audio in compact media players with low power draw.
Smartphone Accessory
Its small 2x2mm WQFN package fits into dongles or adapters for headphone amplification in mobile devices.
Laptop Audio Circuit
With depop and shutdown features, it eliminates clicks and saves power in notebook headphone outputs.
Portable Gaming Device
Stereo output and low voltage operation make it suitable for handheld consoles requiring headphone jacks.
Voice Recorder
Its low noise and thermal protection ensure reliable headphone monitoring in field recording devices.
DIY Stereo Headphone Amp
Hobbyists can build ultra-compact stereo amplifiers using this chip, benefiting from its tiny footprint and integrated features.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4910LQX/NOPB | 8-WQFN (2x2) | 2.2V ~ 5.5V | 35mW x 2 @ 32Ω |
| TPA6101A2D | 8-SOIC | 1.6V ~ 3.6V | 50mW x 2 @ 16Ω |
- Q: What is the output power of the LM4910LQX/NOPB?
- A: It delivers 35mW per channel into 32Ω loads, ideal for headphone use.
- Q: What is the supply voltage range?
- A: It operates from 2.2V to 5.5V, compatible with USB and battery power.
- Q: Is it a stereo amplifier?
- A: Yes, it is a 2-channel (stereo) headphone amplifier.
- Q: What protection features does it have?
- A: It includes depop, shutdown, and thermal protection.
- Q: What package is available?
- A: It comes in an 8-WQFN (2x2mm) package with exposed pad.
LM4910LQX/NOPB.pdf
- Q: What is the output power of the LM4910LQX/NOPB?
- A: It delivers 35mW per channel into 32Ω loads, ideal for headphone use.
- Q: What is the supply voltage range?
- A: It operates from 2.2V to 5.5V, compatible with USB and battery power.
- Q: Is it a stereo amplifier?
- A: Yes, it is a 2-channel (stereo) headphone amplifier.
- Q: What protection features does it have?
- A: It includes depop, shutdown, and thermal protection.
- Q: What package is available?
- A: It comes in an 8-WQFN (2x2mm) package with exposed pad.
