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Product Detailed Parameters
- Description：IC AMP CLSS AB MONO 1.23W 20TQFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR)
- Type：Class AB
- Output Type：1-Channel (Mono) with Stereo Headphones
- Max Output Power x Channels @ Load：1.23W x 1 @ 8Ohm; 215mW x 2 @ 16Ohm
- Voltage - Supply：2.7V ~ 5.5V
- Features：Depop, Shutdown, Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：20-TQFN (4x4)
- Package / Case：20-WFQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The ISL54003IRTZ-T is an integrated audio amplifier system manufactured by Renesas Electronics Corporation, housed in a 20-lead 4x4 TQFN package. It combines one Class AB bridge-tied load (BTL) power amplifier for driving an 8Ω mono speaker and two Class AB single-ended headphone amplifiers for driving 16Ω or 32Ω headphones. The device operates from a single +2.7V to +5.5V supply. At 5V, the BTL driver delivers up to 941mW into 8Ω at 1% THD+N, while each headphone amplifier provides up to 94mW into 32Ω at 1% THD+N.
Feature Summary
- Integrates a mono BTL speaker amplifier with dual stereo headphone amplifiers in a single package
- Includes automatic headphone sense circuitry that detects jack insertion and switches audio paths
- Features click and pop suppression circuitry to eliminate audible transients during mode transitions
- Provides low power shutdown mode and thermal overload protection
Applications
- Cellular and mobile phones
- MP3 players and portable media devices
- Handheld games and toys
- PDAs and digital cameras
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific -T suffix indicates tape and reel packaging as per Intersil/Renesas standards. Ensure the part meets RoHS compliance requirements for lead-free materials. Validate the operating temperature range of -40°C to +85°C against your environmental specifications before finalizing procurement.
Selection Notes
Select this component when a compact solution is required to drive both a small internal speaker and external headphones simultaneously. The integrated headphone detection simplifies board design by removing external switching logic. Verify that the available power output at your target supply voltage meets the acoustic requirements of your specific speaker and headphone loads.
Part Context
This device belongs to the ISL54003/ISL54005/ISL54006 family of integrated audio amplifier systems. While the ISL54005 and ISL54006 include input multiplexing capabilities, the ISL54003 focuses on a simpler architecture without front-end muxing. All variants share the same 20-lead TQFN footprint and core amplifier features.
Replacement Considerations
Public documentation explicitly states 'NO RECOMMENDED REPLACEMENT' for this product line. Designers are advised to contact technical support for potential alternatives.
