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MAX9730EBP+T

更新时间： 2024-01-24 06:25:58

品牌	Logo	应用领域
美信 - MAXIM		放大器功率放大器
页数	文件大小	规格书
15页	316K
描述
2.4W, Single-Supply, Class G Power Amplifier

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MAX9730EBP+T 数据手册

19-0701; Rev 1; 11/07

2.4W, Single-Supply, Class G Power Amplifier

MAX9730

General Description

Features

The MAX9730 features a mono Class G power amplifier

with an integrated inverting charge-pump power supply.

The charge pump can supply up to 500mA of peak out-

put current over a 2.7VDC to 5.5VDC supply voltage

range, guaranteeing up to 2.4W output power into an

8Ω load. The 2.4W output power allows for transient

audio content to remain unclipped as the battery rail col-

lapses over time.

o 2.7V to 5.5V Operation

o Integrated Charge-Pump Power Supply

o 63% Efficiency (V = 5V, P = 1W)

OUT

o 2.4W Output Power into 8Ω at V

= 3.3V

o Up to 2.4W Instantaneous Output Power into 8Ω

o Clickless/Popless Operation

The MAX9730 maximizes battery life by offering high-

performance efficiency. Maxim’s proprietary output

stage provides efficiency levels greater than Class AB

devices without the EMI penalties commonly associat-

ed with Class D amplifiers. High efficiency allows the

MAX9730 to be packaged in a UCSP™ package with-

out derating the output power handling capability.

o Small Thermally Efficient Packages

2mm x 2.5mm 20-Bump UCSP

4mm x 4mm 28-Pin TQFN

Ordering Information

The device utilizes fully differential inputs and outputs,

comprehensive click-and-pop suppression, shutdown

control, and soft-start circuitry. The MAX9730 is fully

specified over the -40°C to +85°C extended tempera-

ture range and is available in ultra-small, lead-free,

20-bump UCSP (2mm x 2.5mm) and 28-pin TQFN

(4mm x 4mm) packages.

PIN-

PACKAGE

PKG

CODE

PART

TEMP RANGE

MAX9730EBP+T* -40°C to +85°C 20 UCSP-20

MAX9730ETI

B20-7

-40°C to +85°C 28 TQFN-EP** T2844-1

+Denotes lead-free package.

T = Tape and reel.

*Future product—contact factory for availability.

**EP = Exposed pad.

Applications

MP3 Players

Personal Media Players

Cell Phones

Smartphones

Typical Application Circuit/Functional Diagram and Pin

Configurations appear at end of data sheet.

Handheld Gaming

Consoles

Notebook Computers

UCSP is a trademark of Maxim Integrated Products, Inc.

Simplified Block Diagram

2.7V TO 5.5V

CPV

FB+

MAX9730

FB+

IN+

IN-

OUT+

OUT-

CLASS G

OUTPUT

STAGE

IN-

FB-

CHARGE

PUMP

FB-

GND

CPGND

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...15

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