Datasheet > LM2623AMMX/NOPB

LM2623AMMX/NOPB

更新时间： 2024-11-27 01:09:31

品牌	Logo	应用领域
德州仪器 - TI		栅
页数	文件大小	规格书
22页	1324K
描述
General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

LM2623AMMX/NOPB 数据手册

Sample &

Buy

Support &

Community

Product

Folder

Tools &

Software

Technical

Documents

LM2623

SNVS188H –MAY 2004–REVISED NOVEMBER 2014

LM2623 General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter

1 Features

3 Description

The LM2623 is a high-efficiency, general-purpose,

step-up DC-DC switching regulator for battery-

powered and low input voltage systems. It accepts an

input voltage between 0.8 V and 14 V and converts it

into a regulated output voltage between 1.24 V and

14 V. Efficiencies up to 90% are achievable with the

LM2623.

•

Good Efficiency Over a Very Wide Load Range

Very Low Output Voltage Ripple

Up to 2-MHz Switching Frequency

0.8-V to 14-V Operating Voltage

1.1-V Start-up Voltage

•

1.24-V to 14-V Adjustable Output Voltage

Up to 2-A Load Current at Low Output Voltages

0.17-Ω Internal MOSFET

In order to adapt to a number of applications, the

LM2623 allows the designer to vary the output

voltage, the operating frequency (300 kHz to 2 MHz)

and duty cycle (17% to 90%) to optimize the part's

performance. The selected values can be fixed or can

vary with battery voltage or input to output voltage

Up to 90% Regulator Efficiency

80-µA Typical Operating Current (Into V_DDPin of

Supply)

ratio. The LM2623 uses

a very simple, on/off

•

< 2.5-µA Ensured Supply Current In Shutdown

regulation mode to produce good efficiency and

stable operation over a wide operating range. It

normally regulates by skipping switching cycles when

it reaches the regulation limit (Pulse Frequency

Modulation).

Small 8-Pin VSSOP Package (Half the Footprint

of Standard 8-Pin SOIC Package); 1.09-mm

Package Height

•

4-mm x 4-mm Thermally Enhanced WSON

Package Option

Note: Please read the Non-Linear Effect and

Choosing the Correct C3 Capacitor sections so that

any challenges with designing with this part can be

taken into account before a board design/layout is

finalized.

2 Applications

•

Cameras, Pagers and Cell Phones

PDAs, Palmtop Computers, GPS devices

White LED Drive, TFT, or Scanned LCDs

Flash Memory Programming

For alternative solutions, See Also: LM2700, LM2622,

LM2731, LM2733, and LM2621.

Device Information⁽¹⁾

Hand-Held Instruments

PART NUMBER

LM2623

PACKAGE

WSON (14)

VSSOP (8)

BODY SIZE (NOM)

4.00 mm x 4.00 mm

3.00 mm x 3.00 mm

1, 2, 3, or 4 Cell Alkaline Systems

1, 2, or 3 Cell Lithium-ion Systems

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Typical Application Circuit

4.7PH

150k

2 Cells

4.7pF

22PF

BOOT

FREQ

LM2623

100PF

tant

RF1

300k

PGND

SGND

RF2

100k

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

12 3 4 5 6 7...22

中文翻译

下载PDF

LM2623AMMX/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM2623AMM/NOPB	TI	类似代替	General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter
LM2621MM/NOPB	TI	类似代替	1.2V to 14V input voltage, 1A load current, step-up DC-DC 8-VSSOP -40 to 85
LM2623MM/NOPB	TI	类似代替	0.8V to 14V input voltage, 2A load current, step-up DC-DC 8-VSSOP -40 to 85

与LM2623AMMX/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM2623LD	NSC	获取价格	General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623LD	TI	获取价格	LM2623 General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623LD/NOPB	TI	获取价格	General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter
LM2623LDX	NSC	获取价格	General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623LDX	TI	获取价格	LM2623 General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623LDX/NOPB	TI	获取价格	General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter
LM2623MM	NSC	获取价格	General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623MM	TI	获取价格	LM2623 General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623MM/NOPB	TI	获取价格	0.8V to 14V input voltage, 2A load current, step-up DC-DC 8-VSSOP -40 to 85
LM2623MMX	TI	获取价格	LM2623 General Purpose, Gated Oscillator Based, DC/DC Boost Converter

与LM2623AMMX/NOPB相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

45
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

34
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

62
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

59

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2623AMMX/NOPB

LM2623AMMX/NOPB 数据手册

LM2623AMMX/NOPB 替代型号

与LM2623AMMX/NOPB相关器件

与LM2623AMMX/NOPB相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LM2623AMMX/NOPB

LM2623AMMX/NOPB 数据手册

LM2623AMMX/NOPB 替代型号

与LM2623AMMX/NOPB相关器件

与LM2623AMMX/NOPB相关文章

您还可以找

您在本页遇到什么问题？