TPS61040

更新时间： 2024-11-23 22:03:51

品牌	Logo	应用领域
德州仪器 - TI		转换器升压转换器
页数	文件大小	规格书
18页	290K
描述
LOW POWER DC/DC BOOST CONVERTER IN SOT-23 PACKAGE

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替代型号

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TPS61040 数据手册

TPS61040

TPS61041

www.ti.com

SLVS413B–OCTOBER 2002–REVISED MAY 2004

LOW POWER DC/DC BOOST CONVERTER IN SOT-23 PACKAGE

FEATURES

DESCRIPTION

•

1.8 V to 6 V Input Voltage Range

The TPS61040/41 is a high-frequency boost con-

verter dedicated for small to medium LCD bias supply

and white LED backlight supplies. The device is ideal

to generate output voltages up to 28 V from a dual

cell NiMH/NiCd or a single cell Li-Ion battery. The

part can also be used to generate standard 3.3 V/5 V

to 12 V power conversions.

Adjustable Output Voltage Range up to 28 V

400 mA (TPS61040) and 250 mA (TPS61041)

Internal Switch Current

•

Up to 1 MHz Switching Frequency

28 µA Typical No Load Quiescent Current

1 µA Typical Shutdown Current

Internal Softstart

The TPS61040/41 operates with a switching fre-

quency up to 1 MHz. This allows the use of small

external components using ceramic as well as tanta-

lum output capacitors. Together with the tiny SOT23

package, the TPS61040/41 gives a very small overall

solution size. The TPS61040 has an internal 400 mA

switch current limit, while the TPS61041 has a 250

mA switch current limit, offering lower output voltage

ripple and allows the use of a smaller form factor

inductor for lower power applications. The low quiesc-

ent current (typically 28 µA) together with an

optimized control scheme, allows device operation at

very high efficiencies over the entire load current

range.

Available in a Tiny 5-Pin SOT23 Package

APPLICATIONS

•

LCD Bias Supply

White-LED Supply for LCD Backlights

Digital Still Camera

PDAs, Organizers and Handheld PCs

Cellular Phones

Internet Audio Player

Standard 3.3 V/5 V to 12 V Conversion

DBV PACKAGE

(TOP VIEW)

GND

TYPICAL APPLICATION

EFFICIENCY

OUTPUT CURRENT

10 µH

= 18 V

V = 5 V

OUT

to 28 V

1.8 V to 6.0 V

V = 3.6 V

1 µF

V = 2.4 V

4.7 µF

GND

0.10

100

- Output Current - mA

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...18

中文翻译

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TPS61040 替代型号

型号	品牌	替代类型	描述	数据表
TPS61046	TI	功能相似	TPS61046 28-V Output Voltage Boost Converter in WCSP Package
TPS61041	TI	功能相似	LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES

与TPS61040相关器件

型号	品牌	获取价格	描述	数据表
TPS61040_07	TI	获取价格	LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES
TPS61040AQDBVRQ1	TI	获取价格	符合 AEC-Q100 标准的 1.8V 至 6V 输入范围、400mA 升压转换器 \|
TPS61040DBV	TI	获取价格	LOW POWER DC/DC BOOST CONVERTER IN SOT-23 PACKAGE
TPS61040DBVR	TI	获取价格	LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES
TPS61040DBVRG4	TI	获取价格	LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES
TPS61040DBVT	ETC	获取价格	Analog IC
TPS61040DDC	TI	获取价格	暂无描述
TPS61040DDCR	TI	获取价格	LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES
TPS61040DDCT	TI	获取价格	LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES
TPS61040DRV	TI	获取价格	LOW-POWER DC/DC BOOST CONVERTER IN SOT-23 AND SON PACKAGES

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