1

FEATURES

APPLICATIONS

DESCRIPTION

V

DD

SW

IN–

IN+

AGND

PGND

VOUT+

VOUT–

V

OUT

CC

V

IN

CC

10 F

m

22 F

m

1 F

m

ToBattery

Differential

Input

C

IN

C

IN

V

FB

CC

SDb

SDd

ShutDownBoost

ShutDownClassD

GAIN

Gain(V

/Float/GND)

CC

2.2to6.2 H

m

GPIO

1 F

m

R1

50k

R2

500k

TPA2013D1

TPA2013D1

SLOS520 – AUGUST 2007

www.ti.com

2.7-W CONSTANT OUTPUT POWER CLASS-D AUDIO AMPLIFIER WITH INTEGRATED

BOOST CONVERTER

• Cell Phones

• High Efficiency Integrated Boost Converter

(Over 90% Efficiency)

• PDA

• GPS

• 2.2-W into an 8-Ω Load from a 3.6-V Supply

• Portable Electronics

• 2.7-W into an 4-Ω Load from a 3.6-V Supply

• Operates from 1.8 V to 5.5 V

• Efficient Class-D Prolongs Battery Life

The TPA2013D1 is a high efficiency Class-D audio

• Independent Shutdown for Boost Converter

power amplifier with an integrated boost converter. It

and Class-D Amplifier

drives up to 2.7 W (10% THD+N) into a 4

Ω speaker.

• Differential Inputs Reduce RF Common Noise

With 85% typical efficiency, the TPA2013D1 helps

extend battery life when playing audio.

• Built-in INPUT Low Pass Filter Decreases RF

and Out of Band Noise Sensitivity

The built-in boost converter generates the voltage rail

• Synchronized Boost and Class-D Eliminates

for the Class-D amplifier. This provides a louder

Beat Frequencies

audio output than a stand-alone amplifier connected

directly to the battery. It also maintains a consistent

• Thermal and Short-Circuit Protection

loudness, regardless of battery voltage. Additionally,

• Available in 2.275 mm x 2.275 mm 16-ball

the boost converter can be used to supply external

WCSP and 4 mm x 4 mm 20-Lead QFN

devices.

Packages

The TPA2013D1 has an integrated low pass filter to

• 3 Selectable Gain Settings of 2 V/V, 6 V/V, and

improve RF rejection and reduce out-of-band noise,

10 V/V

increasing the signal to noise ratio (SNR). A built-in

PLL synchronizes the boost converter and Class-D

switching

frequencies,

thus

eliminating

beat

frequencies and improving audio quality. All outputs

are fully protected against shorts to ground, power

supply, and output-to-output shorts.

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007, 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.