LY8005

Rev. 1.6

2.3 W Mono Filterless Class D Audio power Amplifier (MSOP)

5F, No. 2, lndustry E . Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan

TEL: 886-3-6668838

FAX: 886-3-6668836

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FEATURES

2.3 W Into 4Ω from 5.0V power supply at

THD = 10% (Typ.).

1.4 W Into 8Ω from 5.0V power supply at

THD = 10% (Typ.).

2.5V~5.5V Power supply.

Low shutdown current.

Low quiescent current.

Minimum external components.

No output filter required for inductive loads.

Output Pin Short-Circuit Protection (Short to

Output Pin, Short to GND, Short to VDD).

Low noise during turn-on and turn-off transitions.

Lead free and green package available.

(RoHS Compliant)

8-pin MSOP package.

APPLICATION

Portable electronic devices

Mobile Phones

PDAs

GENERAL DESCRIPTION

The LY8005 is a high efficiency, 2.3 W mono class D

audio power amplifier. It is a low noise, filterless

PWM architecture eliminates the output filter,

reducing external component count, system cost,

and simplify design.

The LY8005 is designed to meet of mobile phones

and other portable electronic devices. The LY8005

is a single 5V supply, it is capable of driving 4Ω

speaker load at a continuous average output of 2.3

W with 10% THD+N. The LY8005 has high

efficiency with speaker loads compared to a typical

Class AB amplifier.

In cellular handsets, the earpiece, speaker phone,

and melody ringer can each be driven by the

LY8005.The gain of the LY8005 is externally

configurable which allows independent gain control

from multiple sources by summing the signals.

Output short circuit and thermal overload protection

prevent the device from damage during fault

conditions.

PIN CONFIGURATION

8 Pin MSOP Package (TOP VIEW)