Datasheet > 电源电路 > 开关式稳压器或控制器> LM2623MM/NOPB

LM2623MM/NOPB

更新时间： 2024-11-26 12:59:43

品牌	Logo	应用领域
德州仪器 - TI		振荡器转换器栅升压转换器
页数	文件大小	规格书
16页	936K
描述
0.8V to 14V input voltage, 2A load current, step-up DC-DC 8-VSSOP -40 to 85

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LM2623MM/NOPB 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	TSSOP, TSSOP8,.19	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	1 week
风险等级：	0.81	模拟集成电路 - 其他类型：	SWITCHING REGULATOR
控制模式：	VOLTAGE-MODE	控制技术：	PULSE FREQUENCY MODULATION
最大输入电压：	5 V	最小输入电压：	3 V
标称输入电压：	3.3 V	JESD-30 代码：	S-PDSO-G8
JESD-609代码：	e3	长度：	3 mm
湿度敏感等级：	1	功能数量：	1
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	1.2 A
最大输出电压：	14 V	最小输出电压：	1.24 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装等效代码：	TSSOP8,.19	封装形状：	SQUARE
封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
认证状态：	Not Qualified	座面最大高度：	1.09 mm
子类别：	Switching Regulator or Controllers	表面贴装：	YES
切换器配置：	BOOST	最大切换频率：	2000 kHz
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	Matte Tin (Sn)	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3 mm
Base Number Matches：	1

LM2623MM/NOPB 数据手册

LM2623

www.ti.com

SNVS188G –MAY 2004–REVISED DECEMBER 2005

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

Check for Samples: LM2623

FEATURES

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 .8 and 14 volts and converts it

into a regulated output voltage between 1.24 and 14

volts. Efficiencies up to 90% are achievable with the

LM2623.

•

Good Efficiency Over a Very Wide Load Range

Very Low Output Voltage Ripple

Small, VSSOP-8 Package (Half the Footprint of

Standard 8 pin SOIC Package)

•

1.09 mm Package Height

Up to 2 MHz Switching Frequency

.8V to 14V Operating Voltage

1.1V Start-up Voltage

In order to adapt to a number of applications, the

LM2623 allows the designer to vary the output

voltage, the operating frequency (300kHz 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

1.24V - 14V Adjustable Output Voltage

Up to 2A Load Current at Low Output Voltages

0.17Ω Internal MOSFET

ratio. The LM2623 uses

a very simple, on/off

Up to 90% Regulator Efficiency

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).

80 µA Typical Operating Current (into V_DDPin

of Supply)

•

<2.5µA Specified Supply Current In Shutdown

4mm x 4mm Thermally Enhanced WSON

Package Option

Note: Please read the Non-Linear Effect and

Choosing The Correct C3 Capacitor sub-sections of

the Design Procedure section of this data sheet, so

that any challenges with designing with this part can

be taken into account before a board design/layout is

finalized.

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.

Hand-Held Instruments

1, 2, 3 or 4 Cell Alkaline Systems

1, 2 or 3 Cell Lithium-ion Systems

Typical Application Circuit

4.7mH

150k

2 Cells

4.7pF

22mF

BOOT

FREQ

LM2623

100mF

RF1

300k

tan

PGND

SGND

RF2

100k

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.

All trademarks are the property of their respective owners.

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...16

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LM2623MM/NOPB 替代型号

型号	品牌	替代类型	描述	数据表
LM2623AMM/NOPB	TI	完全替代	General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter
LM2621MM/NOPB	TI	完全替代	1.2V to 14V input voltage, 1A load current, step-up DC-DC 8-VSSOP -40 to 85
LM2621MM	TI	完全替代	LM2621 Low Input Voltage, Step-Up DC-DC Converter

与LM2623MM/NOPB相关器件

型号	品牌	获取价格	描述	数据表
LM2623MMX	TI	获取价格	LM2623 General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623MMX	NSC	获取价格	General Purpose, Gated Oscillator Based, DC/DC Boost Converter
LM2623MMX/NOPB	TI	获取价格	0.8V to 14V input voltage, 2A load current, step-up DC-DC 8-VSSOP -40 to 85
LM2630	NSC	获取价格	Synchronous Step-Down Power Supply Controller
LM2630MTC-ADJ	NSC	获取价格	Synchronous Step-Down Power Supply Controller
LM2630MTC-ADJX	TI	获取价格	SWITCHING CONTROLLER, 345kHz SWITCHING FREQ-MAX, PDSO20, PLASTIC, TSSOP-20
LM2630MTCX-ADJ	ROCHESTER	获取价格	SWITCHING CONTROLLER, 345kHz SWITCHING FREQ-MAX, PDSO20, TSSOP-20
LM2631	NSC	获取价格	Synchronous Step-Down Power Supply Controller
LM2631MTC-ADJ	NSC	获取价格	Synchronous Step-Down Power Supply Controller
LM2631MTC-ADJ/NOPB	TI	获取价格	SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20

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