National Semiconductor LM4890IBLX
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 1.20 | Dhs. 1.20 |
| 15+ | Dhs. 1.17 | Dhs. 17.55 |
| 25+ | Dhs. 1.14 | Dhs. 28.50 |
| 50+ | Dhs. 1.08 | Dhs. 54.00 |
| 100+ | Dhs. 0.95 | Dhs. 95.00 |
| N+ | Dhs. 0.19 | 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 | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 1W x 1 @ 8Ohm |
| Voltage - Supply | 2.2V ~ 5.5V |
| Features | - |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 9-uSMD (1.51x1.51) |
| Package / Case | 9-TFBGA |
The LM4890IBLX is a mono Class AB audio amplifier designed for low-power portable applications. Operating from 2.2V to 5.5V, it delivers up to 1W into an 8Ω load with low distortion. Its tiny 9-uSMD package saves board space, while features like shutdown mode and thermal protection enhance reliability. Ideal for battery-powered devices such as smartphones, portable speakers, and radios.
- Compact Footprint: 9-uSMD package enables integration into space-constrained designs.
- Low Voltage Operation: 2.2V to 5.5V supply range supports single-cell battery applications.
- High Output Power: 1W into 8Ω provides sufficient volume for portable speakers.
- Thermal Protection: Built-in shutdown prevents damage during overload conditions.
Portable Bluetooth Speaker
The LM4890IBLX delivers 1W into 8Ω, providing clear audio output for compact Bluetooth speakers while operating from a single Li-ion battery (2.2V-5.5V).
AM/FM Radio
Its low noise and differential input capability make it suitable for driving the audio output stage in portable AM/FM radios, ensuring low distortion.
Intercom System
With a small 9-uSMD footprint, this amplifier can be integrated into compact intercom modules, offering sufficient gain for voice communication.
Line Driver for Audio Signals
The device can be used as a line driver to boost audio signals from a DAC or codec to line-level output, thanks to its wide voltage range.
Alarm Driver
Its shutdown feature allows low-power standby, making it ideal for battery-operated alarm systems that need to output warning tones on demand.
DIY Audio Projects
Hobbyists can use the LM4890IBLX in simple mono amplifier circuits for portable speakers or audio test fixtures, benefiting from its minimal external component count.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4890IBLX | 9-uSMD | 2.2V ~ 5.5V | 1W x 1 @ 8Ω |
| LM4898ITLX/NOPB | 9-uSMD | 2.4V ~ 5.5V | 1.4W x 1 @ 4Ω |
| FAN7023MUX | 8-MSOP | 2.2V ~ 5.5V | 1W x 1 @ 8Ω |
- Q: What is the typical output power of the LM4890IBLX?
- A: It delivers 1W into an 8Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is 2.2V to 5.5V.
- Q: Is this amplifier suitable for battery-powered devices?
- A: Yes, its low voltage range and Class AB efficiency make it ideal for portable applications.
- Q: What package is available?
- A: It comes in a 9-uSMD (1.51x1.51) package, also known as 9-TFBGA.
- Q: Does it have thermal protection?
- A: Yes, it includes thermal shutdown protection.
LM4890IBLX.pdf
- Q: What is the typical output power of the LM4890IBLX?
- A: It delivers 1W into an 8Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is 2.2V to 5.5V.
- Q: Is this amplifier suitable for battery-powered devices?
- A: Yes, its low voltage range and Class AB efficiency make it ideal for portable applications.
- Q: What package is available?
- A: It comes in a 9-uSMD (1.51x1.51) package, also known as 9-TFBGA.
- Q: Does it have thermal protection?
- A: Yes, it includes thermal shutdown protection.
