Rochester Electronics, LLC LM4665LDX-G
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 49.71 | Dhs. 49.71 |
| 15+ | Dhs. 48.14 | Dhs. 722.10 |
| 25+ | Dhs. 47.10 | Dhs. 1,177.50 |
| 50+ | Dhs. 44.48 | Dhs. 2,224.00 |
| 100+ | Dhs. 39.25 | Dhs. 3,925.00 |
| N+ | Dhs. 7.85 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Rochester Electronics, LLC |
| Product Series | Boomer® |
| Packaging | Bulk | |
| Part Status | Active |
| Type | Class AB |
| Output Type | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 1.4W x 1 @ 8Ohm |
| Voltage - Supply | 2.7V ~ 3.8V |
| Features | - |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 10-WSON (3x4) |
| Package / Case | 10-WFDFN Exposed Pad |
The LM4665LDX-G is a mono Class AB audio amplifier designed for low-power portable applications. Operating from 2.7V to 3.8V, it delivers up to 1.4W into an 8Ω load with low distortion. Its compact 10-WSON package and surface-mount design make it easy to integrate into space-constrained devices such as Bluetooth speakers, radios, and intercoms. The amplifier offers excellent audio clarity and thermal performance, making it a reliable choice for battery-powered audio systems.
- High Output Power: Delivers 1.4W into 8Ω, providing sufficient volume for portable speakers.
- Low Voltage Operation: Works from 2.7V to 3.8V, compatible with single-cell Li-ion batteries.
- Compact Package: 10-WSON (3x4mm) saves board space in miniaturized designs.
- Wide Temperature Range: Operates from -40°C to 85°C, suitable for industrial and consumer environments.
Portable Bluetooth Speaker
The LM4665LDX-G provides 1.4W into 8Ω, making it ideal for compact Bluetooth speakers where battery life and small size are critical.
AM/FM Radio
Its low noise and low voltage operation suit portable AM/FM radios, delivering clear audio output from a single Li-ion cell.
Intercom System
With a wide temperature range and mono output, this amplifier is reliable for intercom units requiring consistent performance in varying environments.
Line Driver for Audio Signals
The LM4665 can be used as a line driver to boost audio signals to headphones or auxiliary inputs, thanks to its low distortion.
Alarm Driver
Its ability to deliver 1.4W into 8Ω makes it suitable for driving alarm tones in security devices or notification systems.
DIY Audio Projects
Hobbyists can use this simple mono amplifier in custom audio projects, benefiting from its minimal external component requirements.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| LM4665LDX-G | 10-WSON (3x4) | 2.7V ~ 3.8V | 1.4W x 1 @ 8Ω |
| LM4665MM | 10-MSOP | 2.7V ~ 3.8V | 1.4W x 1 @ 8Ω |
| LM4665LD | 10-WSON (3x4) | 2.7V ~ 3.8V | 1.4W x 1 @ 8Ω |
- Q: What is the typical output power of the LM4665LDX-G?
- A: It delivers 1.4W into an 8Ω load from a 3.8V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is 2.7V to 3.8V.
- Q: Is this amplifier suitable for battery-powered devices?
- A: Yes, its low voltage operation and Class AB efficiency make it ideal for portable applications.
- Q: What package is available?
- A: It comes in a 10-WSON (3x4mm) surface-mount package.
- Q: Can it be used in mono speaker applications?
- A: Yes, it is a single-channel (mono) amplifier designed for driving one speaker.
- Q: What is the typical output power of the LM4665LDX-G?
- A: It delivers 1.4W into an 8Ω load from a 3.8V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is 2.7V to 3.8V.
- Q: Is this amplifier suitable for battery-powered devices?
- A: Yes, its low voltage operation and Class AB efficiency make it ideal for portable applications.
- Q: What package is available?
- A: It comes in a 10-WSON (3x4mm) surface-mount package.
- Q: Can it be used in mono speaker applications?
- A: Yes, it is a single-channel (mono) amplifier designed for driving one speaker.

LM4665LDX-G.pdf