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Datasheet > 电源电路 > 开关式稳压器或控制器> LM2734ZQSDX/NOPB
LM2734ZQSDX/NOPB PDF预览

LM2734ZQSDX/NOPB

更新时间： 2024-11-06 13:02:23
品牌 Logo 应用领域
德州仪器 - TI 稳压器
页数 文件大小 规格书
31页 1184K
描述
Thin SOT23 1A Load Step-Down DC-DC Regulator 6-WSON -40 to 125

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LM2734ZQSDX/NOPB 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Obsolete包装说明：HVSON, SOLCC6,.11,37
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.74
其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 18V模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：20 V最小输入电压：3 V
标称输入电压：5 VJESD-30 代码：S-PDSO-N6
JESD-609代码：e3长度：3 mm
湿度敏感等级：3功能数量：1
端子数量：6最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：2.5 A
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装等效代码：SOLCC6,.11,37封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE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
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：BUCK最大切换频率：3600 kHz
技术：BICMOS温度等级：AUTOMOTIVE
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.95 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

LM2734ZQSDX/NOPB 数据手册

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LM2734  
www.ti.com  
SNVS288I –SEPTEMBER 2004–REVISED APRIIL 2013  
LM2734 Thin SOT 1A Load Step-Down DC-DC Regulator  
Check for Samples: LM2734  
1
FEATURES  
DESCRIPTION  
The LM2734 regulator is a monolithic, high frequency,  
PWM step-down DC/DC converter in a 6-pin Thin  
SOT package. It provides all the active functions to  
provide local DC/DC conversion with fast transient  
response and accurate regulation in the smallest  
possible PCB area.  
234  
•
Thin SOT-6 Package  
•
3.0V to 20V Input Voltage Range  
0.8V to 18V Output Voltage Range  
1A Output Current  
•
•
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550kHz (LM2734Y) and 1.6MHz (LM2734X)  
Switching Frequencies  
With a minimum of external components and online  
design support through WEBENCH®, the LM2734 is  
easy to use. The ability to drive 1A loads with an  
internal 300mΩ NMOS switch using state-of-the-art  
0.5µm BiCMOS technology results in the best power  
density available. The world class control circuitry  
allows for on-times as low as 13ns, thus supporting  
exceptionally high frequency conversion over the  
entire 3V to 20V input operating range down to the  
minimum output voltage of 0.8V. Switching frequency  
is internally set to 550kHz (LM2734Y) or 1.6MHz  
(LM2734X), allowing the use of extremely small  
surface mount inductors and chip capacitors. Even  
though the operating frequencies are very high,  
efficiencies up to 90% are easy to achieve. External  
shutdown is included, featuring an ultra-low stand-by  
current of 30nA. The LM2734 utilizes current-mode  
control and internal compensation to provide high-  
•
•
•
•
•
•
•
•
300mΩ NMOS Switch  
30nA Shutdown Current  
0.8V, 2% Internal Voltage Reference  
Internal Soft-Start  
Current-Mode, PWM Operation  
WEBENCH® Online Design Tool  
Thermal Shutdown  
LM2734XQ/LM2734YQ are AEC-Q100 Grade 1  
Qualified and are Manufactured on an  
Automotive Grade Flow  
APPLICATIONS  
•
•
•
•
•
•
•
•
Local Point of Load Regulation  
Core Power in HDDs  
Set-Top Boxes  
performance regulation over  
a wide range of  
operating conditions. Additional features include  
internal soft-start circuitry to reduce inrush current,  
pulse-by-pulse current limit, thermal shutdown, and  
output over-voltage protection.  
Battery Powered Devices  
USB Powered Devices  
DSL Modems  
Notebook Computers  
Automotive  
1
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.  
2
3
4
WEBENCH is a registered trademark of Texas Instruments, Inc..  
WEBENCH is a registered trademark of Texas Instruments.  
All other 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.  
Copyright © 2004–2013, Texas Instruments Incorporated  
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LM2734ZQSDX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2734ZQSDE/NOPB TI

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