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LM2623MMXSLASHNOPB中文资料德州仪器数据手册PDF规格书

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厂商型号

LM2623MMXSLASHNOPB

功能描述

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

丝印标识

S46B

封装外壳

VSSOP

文件大小

989.23 Kbytes

页面数量

23

生产厂商

TI

中文名称

德州仪器

网址

网址

数据手册

下载地址一下载地址二到原厂下载

更新时间

2025-10-4 15:40:00

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LM2623MMXSLASHNOPB规格书详情

1 Features

1• 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

• Up to 90% Regulator Efficiency

• 80-μA Typical Operating Current (Into VDD Pin of

Supply)

• < 2.5-μA Ensured Supply Current In Shutdown

• Small 8-Pin VSSOP Package (Half the Footprint

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

Package Height

• 4-mm × 4-mm Thermally Enhanced WSON

Package Option

2 Applications

• Cameras, Pagers and Cell Phones

• PDAs, Palmtop Computers, GPS devices

• White LED Drive, TFT, or Scanned LCDs

• Flash Memory Programming

• Hand-Held Instruments

• 1, 2, 3, or 4 Cell Alkaline Systems

• 1, 2, or 3 Cell Lithium-ion Systems

3 Description

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

step-up DC-DC switching regulator for batterypowered

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.

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

ratio. The LM2623 uses a very simple, on/off

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).

Note: See Non-Linear Effect and Choosing The

Correct C3 Capacitor so that any challenges with

designing with this part can be taken into account

before a board design/layout is finalized.

For alternative solutions, See Also: LM2700, LM2622,

LM2731, LM2733, and LM2621.

供应商 型号 品牌 批号 封装 库存 备注 价格
TI/德州仪器
25+
WSON-14
860000
明嘉莱只做原装正品现货
询价
NS
24+
5860
询价
TI/德州仪器
21+
NA
12820
只做原装,质量保证
询价
TI/德州仪器
25+
原厂封装
10280
原厂授权代理,专注军工、汽车、医疗、工业、新能源!
询价
TI/德州仪器
20+
WSON-14
5000
原厂原装订货诚易通正品现货会员认证企业
询价
TI(德州仪器)
23+
N/A
6000
公司只做原装,可来电咨询
询价
TI(德州仪器)
23+
WSON-14
9990
原装正品,支持实单
询价
TI德州仪器
22+
24000
原装正品现货,实单可谈,量大价优
询价
TI
23+
N/A
7000
询价
TI/德州仪器
25+
原厂封装
10280
询价