MC4863PD – Dual 2.2W Audio Amplifier

Part Number: MC4863, MC4863PD

Function: Dual 2.2W Audio Amplifier Plus Stereo Headphone Function

Package: SOP16 package and TSSOP16-EP, TSSOP20 and TSSOP20-EP Type

Manufacturer: MegaPower Semiconductor


MC4863PD pdf datasheet


The MC4863PD is a dual bridge-connected audio power amplifier which, when connected to a 5V supply, will deliver 2.2W to a 4Ω load(Note 1) or 2.5W to a 3Ω load(Note 2) with less than 1.0% THD+N. In addition, the headphone input pin allows the amplifiers to operate in single-ended mode to drive stereo headphones.

Boomer audio power amplifiers were designed specifically to provide high quality output power
from a surface mount package while requiring few external components,to simplify audio system
design, it combines dual bridge speaker amplifiers and stereo headphone amplifiers on one chip.


1. Single-ended mode – THD+N 0.5%(max) at 75mW into 32Ω

2. Shutdown current 0.7μA(typ)

3. Stereo headphone amplifier mode

4. “Click and pop” suppression circuitry

5. Unity-gain stable

6. Thermal shutdown protection circuitry

3 page
MC4863PD pinout amplifier


1. Multimedia monitors

2. Portable and desktop computers

3. Portable televisions

MC4863PD PDF Datasheet

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LA4440 PDF Datasheet – 2-Channel, Power Amplifier

Part Number: LA4440, LA4440J-K-E

Function: 6W, 2-Channel, Bridge 19W Power Amplifier

Package: SIP14H

Manufacturer: ON Semiconductor


LA4440 Power Amplifier


The LA4440 is 2-Channel, Power Amplifier. An audio power amplifier is an electronic amplifier that amplifies low-power audio signals (signals from a microphone, instrument, or other audio source) to a level suitable for driving loudspeakers or headphones. The main purpose of an audio power amplifier is to increase the power of an audio signal, so that it can be used to drive a loudspeaker and produce sound at a higher volume.

LA4440 pdf datasheet


1. Built-in 2 channels (dual) enabling use in stereo and bridge amplifier applications.

(1) Dual : 6W x 2 (typ)

(2) Bridge : 19W (typ)

2. Minimum number of external parts required.

3. Small pop noise at the time of power supply ON/OFF and good starting balance.

4. Good ripple rejection : 46dB (typ)

5. Good channel separation.

6. Small residual noise (Rg=0).

7. Low distortion over a wide range from low frequencies to high frequencies.

8. Easy to design radiator fin.

9. Built-in audio muting function.

10. Built-in protectors.

a. Thermal protector

b. Overvoltage, surge voltage protector

c. Pin-to-pin short protector

LA4440 PDF Datasheet

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