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MAX98303

Stereo 3.1W Class D Amplifier

Big 3.1W/Channel Power in a Small, 16-Bump 0.4mm WLP

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX98303 stereo 3.1W Class D amplifier provides Class AB audio performance with Class D efficiency. This device offers five selectable gain settings (6dB, 9dB, 12dB, 15dB, and 18dB) set by a single gain-select input (GAIN).

Active emissions limiting, edge-rate, and overshoot control circuitry greatly reduces EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices. These features reduce application component count.

The IC's 2.0mA at 3.7V, 2.7mA at 5V, quiescent current extends battery life in portable applications.

The IC is available in a 16-bump WLP (1.68mm x 1.68mm x 0.64mm) package specified over the extended -40°C to +85°C temperature range.

Data Sheet

Download	Rev 0	(PDF, 2MB)
E-Mail

An evaluation kit is available: MAX98303EVKIT

Key Features

Low Quiescent Current: 2.0mA at 3.7V, 2.7mA at 5V
Spread Spectrum and Active Emissions Limiting
Five Pin-Selectable Gains
Click-and-Pop Suppression
Thermal and Overcurrent Protection
Low-Current Shutdown Mode
Space-Saving, 1.68mm x 1.68mm x 0.64mm, 16-Bump WLP (0.4mm Pitch)

Applications/Uses

Cellular Phones
MP3 Players
Notebook and Netbook Computers
Portable Audio Players
Tablets
VoIP Phones

Key Specifications:

Speaker Amplifiers

Part Number

Class

Spkr. Amp. V_CC
(V)

Spkr. Amp. I_CC
(mA)

P_OUT into 4Ω @ 1% THD+N
(W)

P_OUT into 4Ω @ 10% THD+N
(W)

P_OUT into 8Ω @ 1% THD+N
(W)

P_OUT into 8Ω @ 10% THD+N
(W)

Spkr. Amp. Half Pwr. THD+N
(%)

SNR
(dB)

PSRR
(dB)

Spkr. Amp. Ext. Gain

Spkr. Amp. Fxd. Gain
(V/V)

Channels

Budgetary Price

min

max

typ

min

A- Weighted

min

max

See Notes

MAX98303

2.6

5.5

2.5

3.1

1.4

1.8

0.04

99.6

$0.59 @1k

See All Speaker Amplifiers (44)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Application Circuit

Product Guides

Audio (PDF)

Reliability Reports

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Software/Models

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Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX98303EWE+T			Active	WLP;16 pin;WLP; Outline Drawing:21-0491 (PDF) Land Pattern: Not Available Use pkgcode/variation: W161B1+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX98303EVKIT

Evaluation Kit for the MAX98303

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