© Semiconductor Components Industries, LLC, 2006

September, 2006 − Rev. 0

1

Publication Order Number:

NCP2990/D

NCP2990

1.3 Watt Audio Power

Amplifier with Fast Turn On

Time

The NCP2990 is an audio power amplifier designed for portable

communication device applications such as mobile phone

applications. The NCP2990 is capable of delivering 1.3 W of

continuous average power to an 8.0

W BTL load from a 5.0 V power

supply, and 1.0 W to a 4.0

W BTL load from a 3.6 V power supply.

The NCP2990 provides high quality audio while requiring few

external components and minimal power consumption. It features a

low−power consumption shutdown mode, which is achieved by

driving the SHUTDOWN pin with logic low.

The NCP2990 contains circuitry to prevent from “pop and click”

noise that would otherwise occur during turn−on and turn−off

transitions. It is a zero pop noise device when a single ended audio

input is used.

For maximum flexibility, the NCP2990 provides an externally

controlled gain (with resistors), as well as an externally controlled

turn−on time (with the bypass capacitor). When using a 1

mF bypass

capacitor, it offers 60 ms wake up time.

Due to its superior PSRR, it can be directly connected to the

battery, saving the use of an LDO.

This device is available in a 9−Pin Flip−Chip CSP (Lead−Free).

Features

60 ms (1

mF Bypass Capacitor)

Typical Applications

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques Reference

Manual, SOLDERRM/D.

9−Pin Flip−Chip CSP

FC SUFFIX

CASE 499E

PIN CONNECTIONS

MBA

= Specific Device Code

A

= Assembly Location

Y

= Year

WW

= Work Week

G

= Pb−Free Package

MARKING

DIAGRAMS

A3

B3

C3

A2

B2

C2

A1

B1

C1

INM

OUTA

INP

VM_P

VM

BYPASS

OUTB SHUTDOWN

9−Pin Flip−Chip CSP

(Top View)

1

See detailed ordering and shipping information in the package

dimensions section on page 12 of this data sheet.

ORDERING INFORMATION

MBA

G

AYWW

A1

A3

C1

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