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LM2623LD/NOPB PDF预览

LM2623LD/NOPB

更新时间： 2024-01-06 17:44:17
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德州仪器 - TI 栅开关
页数 文件大小 规格书
22页 1324K
描述
General-Purpose, Gated-Oscillator-Based DC/DC Boost Converter

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中文翻译

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LM2623LD/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：SON
包装说明：VSON,针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.69模拟集成电路 - 其他类型：SWITCHING REGULATOR
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-XDSO-N14JESD-609代码：e3
长度：4 mm湿度敏感等级：3
功能数量：1端子数量：14
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：VSON封装形状：SQUARE
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 mm
表面贴装：YES切换器配置：BOOST
最大切换频率：2000 kHz温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

LM2623LD/NOPB 数据手册

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Sample &  
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Community  
Product  
Folder  
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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.  
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  
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 VDD Pin 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  
D1  
L1  
4.7PH  
R3  
150k  
3A  
C3  
V
IN  
2 Cells  
4.7pF  
8
+
C1  
22PF  
SW  
7
2
5V  
BOOT  
EN  
3
FREQ  
LM2623  
C2  
100PF  
tant  
6
4
RF1  
300k  
V
DD  
1
PGND  
FB  
SGND  
5
RF2  
100k  
1
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.  
 
 
 
 
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中文翻译

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LM2623LD/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2623LD TI

完全替代

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

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