MAX4368ETA+T

Audio Amplifiers Overview

The MAX4368ETA+T is a bridged audio power amplifier designed for devices with internal speakers and headsets. It delivers 330mW into a 32Ω load or 200mW into a 16Ω load with 1% THD+N from a single 5V supply. Operating from 2.3V to 5.5V, it features an internally preset gain of 3V/V, low-power shutdown mode, clickless power-up/down, and internal DC bias generation. The device eliminates output-coupling capacitors in bridge-tied configurations and is available in space-saving 8-pin TDFN packages.

Audio Amplifiers Feature Summary

• Bridged output configuration eliminates the need for external output-coupling capacitors
• Internally preset voltage gain of 3V/V
• Low-power shutdown mode reduces quiescent current consumption
• Clickless power-up and power-down functionality

Audio Amplifiers Applications

• Cellular Phones
• Two-Way Radios
• PDAs
• Headphones
• Headsets

Audio Amplifiers Procurement Notes

Verify the ordering suffix +T indicates tape-and-reel packaging and + denotes lead-free status. Confirm the package type matches the required 8-pin TDFN form factor. Ensure the temperature range meets operational requirements. Check for exposed paddle grounding requirements during assembly.

Audio Amplifiers Selection Notes

Select this model when a fixed gain of 3V/V is required for the application. Compare against MAX4367 if a lower gain of 2V/V is sufficient. Consider MAX4366 only if programmable gain via external resistors is necessary. Evaluate thermal dissipation limits based on the specific PCB layout and ambient conditions.

Audio Amplifiers Part Context

This component belongs to the MAX4366/MAX4367/MAX4368 family of ultra-small audio power amplifiers. All variants share identical pinouts, power capabilities, and packaging options. The primary distinction lies in the internal gain setting: MAX4366 is programmable, MAX4367 is set to 2V/V, and MAX4368 is set to 3V/V.

Audio Amplifiers Replacement Considerations

MAX4367ETA+T offers similar performance with a different internal gain setting (2V/V instead of 3V/V). Verify circuit compatibility regarding gain requirements before substitution.