TPS62290

更新时间： 2024-11-23 04:48:47

品牌	Logo	应用领域
德州仪器 - TI		转换器
页数	文件大小	规格书
23页	756K
描述
1-A Step Down Converter in 2 x 2 SON Package

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TPS62290 数据手册

TPS62290

www.ti.com

SLVS764–JUNE 2007

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

FEATURES

DESCRIPTION

•

High Efficiency Step Down Converter

The TPS62290 device is a high 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.

Output Current up to 1000 mA

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%

Typ. 15-µA Quiescent Current

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.

100% Duty Cycle for Lowest Dropout

Voltage Positioning at Light Loads

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

The TPS62290 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.

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. TPS62290 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 TPS62290 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...23

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TPS62290 替代型号

型号	品牌	替代类型	描述	数据表
TLV62080	TI	功能相似	1.2A High Efficient Step Down Converter in 2x2mm SON Package
TPS62260	TI	功能相似	2.25 MHz 600 mA Step Down Converter in 2x2SON/TSOT-23 Package

与TPS62290相关器件

型号	品牌	获取价格	描述	数据表
TPS62290_08	TI	获取价格	1-A Step Down Converter in 2 x 2 SON Package
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

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