Datasheet > TPS62290_08

TPS62290_08

更新时间： 2024-01-23 08:01:07

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
24页	987K
描述
1-A Step Down Converter in 2 x 2 SON Package

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TPS62290_08 数据手册

TPS62290, TPS62291, TPS62293

www.ti.com

SLVS764C–JUNE 2007–REVISED MARCH 2008

1-A Step Down Converter in 2 x 2 SON Package

FEATURES

DESCRIPTION

•

High Efficiency Step Down Converter

•

Output Current up to 1000 mA

The TPS6229x device is

highly efficient

synchronous step down dc-dc converter optimized for

battery powered portable applications. It provides up

to 1000-mA output current from a single Li-Ion cell.

V_INRange From 2.3 V to 6 V

2.25 MHz Fixed Frequency Operation

Power Save Mode at Light Load Currents

Output Voltage Accuracy in PWM mode ±1.5%

Fixed Output Voltage Options

With an input voltage range of 2.3 V to 6 V, the

device supports batteries with extended voltage

range and are ideal to power portable applications

like mobile phones and other portable equipment.

Typ. 15-µA Quiescent Current

The TPS6229x operates at 2.25-MHz fixed switching

frequency and enters Power Save Mode operation at

light load currents to maintain high efficiency over the

entire load current range.

100% Duty Cycle for Lowest Dropout

Voltage Positioning at Light Loads

Available in a 2 × 2 × 0,8 mm SON Package

The Power Save Mode is optimized for low output

voltage ripple. For low noise applications, the device

can be forced into fixed frequency PWM mode by

pulling the MODE pin high. In the shutdown mode,

the current consumption is reduced to less than 1 µA.

The TPS6229x allows the use of small inductors and

capacitors to achieve a small solution size.

APPLICATIONS

•

Cell Phones, Smart-phones

WLAN

PDAs, Pocket PCs

Low Power DSP Supply

Portable Media Players

POL

The TPS6229x is available in a 2-mm × 2-mm 6-pin

SON package.

1.8 V,

100

2.2 mH

OUT

1000 mA

TPS62290DRV

2.7 V to 6 V

V_IN= 4.2 V

22 pF

V_IN= 3.8 V

OUT

360 kW

10 mF

V_IN= 5 V

GND

MODE

180 kW

V_IN= 4.5 V

V_OUT= 3.3 V,

MODE = GND,

L = 2.2 mH

0.00001 0.0001 0.001

0.01

0.1

I_O- Output Current - A

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.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...24

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与TPS62290_08相关器件

型号	品牌	获取价格	描述	数据表
TPS62290_1	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290_16	TI	获取价格	1-A Step Down Converter in 2 x 2 DRV Package
TPS62290DRV	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290DRVR	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290DRVRG4	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290DRVT	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290DRVTG4	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290IDRVRQ1	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290-Q1	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
TPS62290TDRVRQ1	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package

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