IS31AP2031-QFLS2-TR

$1.32

Description：IC AMP CLASS G MONO 2W 20QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:d60c73361fed Category: Audio Amplifiers Brand: Lumissil Microsystems

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Product introduction

Product Detailed Parameters

Description：IC AMP CLASS G MONO 2W 20QFN
Series：-
Mfr：Lumissil Microsystems
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Class G
Output Type：1-Channel (Mono)
Max Output Power x Channels @ Load：2W x 1 @ 8Ohm
Voltage - Supply：2.7V ~ 4.5V
Features：AGC, Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
Mounting Type：Surface Mount
Supplier Device Package：20-QFN (3x3)
Package / Case：20-WFQFN Exposed Pad
Operating Temperature：-40°C ~ 85°C (TA)
Grade：-
Qualification：-

Download product information

IS31AP2031-QFLS2-TR

Overview

The IS31AP2031-QFLS2-TR is a Class-K audio power amplifier with an integrated charge pump converter, manufactured by Lumissil Microsystems. It delivers up to 2.0W into an 8Ω load from a 4.2V supply at 10% THD+N. The device operates on a 2.7V to 4.5V supply and features automatic gain control (AGC) for distortion prevention. It utilizes a Pulse Count Control serial interface for mode selection and includes thermal and short-circuit protection. The component is housed in a QFN-20 package measuring 3mm x 3mm.

Feature Summary

Integrated charge pump converter boosts supply voltage without external inductors
Automatic gain control prevents signal clipping and protects speakers
Fully differential design reduces RF noise interference
Built-in click-and-pop suppression circuitry minimizes transient noise

Applications

Smart phones
Cellular phones
PDAs
GPS devices
Portable electronics

Procurement Notes

Verify the specific ordering suffix -QFLS2-TR corresponds to the QFN-20 lead-free package with a reel quantity of 2500 units. Confirm that the industrial temperature range (-40°C to +85°C) aligns with your system requirements. Ensure the datasheet revision matches the manufacturing batch specifications for accurate electrical characteristics.

Selection Notes

Select this component when high output power is required from low-voltage portable supplies. The integrated charge pump eliminates the need for bulky inductors, saving PCB space. Consider the Pulse Count Control interface if minimal pin count is preferred over standard I2C or analog gain controls. Verify input impedance matching for the chosen operating mode.

Part Context

This part belongs to the IS31AP series of audio amplifiers designed for portable consumer electronics. It represents a Class-K topology optimized for efficiency and power density. The QFN-20 package facilitates compact designs suitable for modern mobile devices where space constraints are critical.