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LM2651MTCX-3.3 PDF预览

LM2651MTCX-3.3

更新时间： 2024-11-02 21:12:47
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
19页 972K
描述
2.6A SWITCHING REGULATOR, 345kHz SWITCHING FREQ-MAX, PDSO16, TSSOP-16

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LM2651MTCX-3.3 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：TSSOP, TSSOP16,.25针数：16
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.11
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：14 V
最小输入电压：4 V标称输入电压：10 V
JESD-30 代码：R-PDSO-G16JESD-609代码：e0
长度：5 mm湿度敏感等级：1
功能数量：1端子数量：16
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：2.6 A封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP16,.25
封装形状：RECTANGULAR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：1.2 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：SINGLE
最大切换频率：345 kHz技术：CMOS
温度等级：AUTOMOTIVE端子面层：Tin/Lead (Sn/Pb)
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：4.4 mmBase Number Matches：1

LM2651MTCX-3.3 数据手册

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LM2651  
www.ti.com  
SNVS032D –FEBRUARY 2000–REVISED APRIL 2013  
LM2651 1.5A High Efficiency Synchronous Switching Regulator  
Check for Samples: LM2651  
1
FEATURES  
DESCRIPTION  
The LM2651 switching regulator provides high  
efficiency power conversion over a 100:1 load range  
(1.5A to 15mA). This feature makes the LM2651 an  
ideal fit in battery-powered applications that demand  
long battery life in both run and standby modes.  
2
•
•
Ultra High Efficiency up to 97%  
High Efficiency Over a 1.5A to Milliamperes  
Load Range  
•
•
•
4V to 14V Input Voltage Range  
1.8V, 2.5V, 3.3V, or ADJ Output Voltage  
Synchronous rectification is used to achieve up to  
97% efficiency. At light loads, the LM2651 enters a  
low power hysteretic or “sleep” mode to keep the  
efficiency high. In many applications, the efficiency  
still exceeds 80% at 15mA load. A shutdown pin is  
available to disable the LM2651 and reduce the  
supply current to less than 10µA.  
Internal MOSFET Switch with Low RDS(on) of  
75mΩ  
•
•
•
300kHz Fixed Frequency Internal Oscillator  
7µA Shutdown Current  
Patented Current Sensing for Current Mode  
Control  
The LM2651 contains a patented current sensing  
circuitry for current mode control. This feature  
eliminates the external current sensing resistor  
required by other current-mode DC-DC converters.  
•
•
•
•
Input Undervoltage Lockout  
Adjustable Soft-Start  
Current Limit and Thermal Shutdown  
16-pin TSSOP Package  
The LM2651 has a 300 kHz fixed frequency internal  
oscillator. The high oscillator frequency allows the  
use of extremely small, low profile components.  
APPLICATIONS  
A
programmable soft-start feature limits current  
•
•
•
•
•
Personal Digital Assistants (PDAs)  
Computer Peripherals  
surges from the input power supply at start up and  
provides a simple means of sequencing multiple  
power supplies.  
Battery-Powered Devices  
Handheld Scanners  
Other protection features include input undervoltage  
lockout, current limiting, and thermal shutdown.  
High Efficiency 5V Conversion  
Typical Application  
Figure 1. Efficiency vs Load Current  
(VIN = 5V, VOUT = 3.3V)  
Figure 2.  
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.  
All trademarks are the property of their respective owners.  
2
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 © 2000–2013, Texas Instruments Incorporated  
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LM2651MTCX-3.3 替代型号

型号 品牌 替代类型 描述 数据表
LM2651MTCX-3.3/NOPB TI

完全替代

 1.5A 高效开关稳压器 | PW | 16 | -40 to 125
LM2651MTC-3.3 TI

完全替代

 1.5A High Efficiency Switching Regulator 16-TSSOP -40 to 125
LM2651MTC-3.3/NOPB TI

类似代替

 1.5A 高效开关稳压器 | PW | 16 | -40 to 125

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