LM4880

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SNAS103C – NOVEMBER 1995 – REVISED MAY 2013

LM4880

Dual 250 mW Audio Power Amplifier with

Shutdown Mode

Check for Samples: LM4880

1

FEATURES

DESCRIPTION

The LM4880 is a dual audio power amplifier capable

2

•

No Bootstrap Capacitors or Snubber Circuits

of

delivering

typically

250mW

per

channel

of

are Necessary

continuous average power to an 8

Ω load with 0.1%

•

Small Outline (SOIC) and PDIP Packaging

THD+N using a 5V power supply.

•

Unity-Gain Stable

Boomer

audio

power

amplifiers

were

designed

•

External Gain Configuration Capability

specifically to provide high quality output power with a

minimal

amount

of

external

components

using

APPLICATIONS

surface mount packaging.

•

Headphone Amplifier

Since

the

LM4880

does

not

require

bootstrap

capacitors or snubber networks, it is optimally suited

•

Personal Computers

for low-power portable systems.

•

CD-ROM Players

The LM4880 features an externally controlled, low-

power consumption shutdown mode, as well as an

KEY SPECIFICATIONS

internal thermal shutdown protection mechanism.

•

THD+N at 1kHz at 200mW Continuous Average

The unity-gain stable LM4880 can be configured by

Output Power into 8

Ω: 0.1% (max)

external gain-setting resistors.

•

THD+N at 1kHz at 85mW Continuous Average

Output Power into 32

Ω: 0.1% (typ)

•

Output Power at 10% THD+N at 1kHz into 8

Ω

325 mW (typ)

•

Shutdown Current 0.7 µA (typ)

•

2.7V to 5.5V Supply Voltage Range

Connection Diagram

Figure 1. Small Outline and PDIP Packages- Top View

See Package Number D0008A for SOIC

or Package Number P0008E for PDIP

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2

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PRODUCTION DATA information is current as of publication date.

Copyright © 1995–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.