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LM2650M-ADJ/NOPB

更新时间： 2024-11-24 02:58:51
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德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
19页 938K
描述
Synchronous Step-Down DC/DC Converter

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LM2650M-ADJ/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：SOP-24针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.73Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：18 V
最小输入电压：4.5 V标称输入电压：15 V
JESD-30 代码：R-PDSO-G24JESD-609代码：e3
长度：15.4 mm湿度敏感等级：3
功能数量：1端子数量：24
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：7.5 A最大输出电压：16 V
最小输出电压：1.5 V标称输出电压：5 V
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装形状：RECTANGULAR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：2.65 mm表面贴装：YES
切换器配置：BUCK最大切换频率：105 kHz
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.5 mmBase Number Matches：1

LM2650M-ADJ/NOPB 数据手册

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LM2650  
www.ti.com  
SNVS133C –JUNE 1999–REVISED APRIL 2013  
LM2650 Synchronous Step-Down DC/DC Converter  
Check for Samples: LM2650  
1
FEATURES  
DESCRIPTION  
The LM2650 is  
a step-down DC/DC converter  
2
•
•
Ultra High Efficiencies (95% possible)  
featuring high efficiency over a 3A to milliamperes  
load range. This feature makes the LM2650 an ideal  
fit in battery-powered applications that demand long  
battery life in both run and standby modes.  
High Efficiency Over a 3A to Milliamperes  
Load Range  
•
Synchronous Switching of Internal NMOS  
Power FETs  
The LM2650 also features  
shutdown mode in which it draws at most 25μA from  
the input power supply.  
a
logic-controlled  
•
•
•
•
Wide Input Voltage Range (4.5V to 18V)  
Output Voltage Adjustable from 1.5V to 16V  
Automatic Low-Power Sleep Mode  
The LM2650 employs a fixed-frequency pulse-width  
modulation (PWM) and synchronous rectification to  
achieve very high efficiencies. In many applications,  
efficiencies reach 95%+ for loads around 1A and  
exceed 90% for moderate to heavy loads from 0.2A  
to 2A.  
Logic-Controlled Micropower Shutdown (IQSD  
25 µA)  
≤
•
•
Frequency Adjustable up to 300 kHz  
Frequency Synchronization with External  
Signal  
A
low-power hysteretic or "sleep" mode keeps  
•
•
•
•
Programmable Soft-Start  
efficiencies high at light loads. The LM2650 enters  
and exits sleep mode automatically as the load  
crosses "sleep in" and "sleep out" thresholds. The  
LM2650 provides nodes for programming both  
thresholds via external resistors. A logic input allows  
the user to override the automatic sleep feature and  
keep the LM2650 in PWM mode regardless of the  
load level.  
Short-Circuit Current Limiting  
Thermal Shutdown  
Available in 24-lead Small-Outline Package  
APPLICATIONS  
•
•
•
•
•
•
Notebook and Palmtop Personal Computers  
Portable Data Terminals  
An optional soft-start feature limits current surges  
from the input power supply at start up and provides  
Modems  
a
simple means of sequencing multiple power  
Portable Instruments  
supplies.  
Global Positioning Devices (GPSs)  
Battery-Powered Digital Devices  
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
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.  
Copyright © 1999–2013, Texas Instruments Incorporated  
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LM2650M-ADJ/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM2650MX-ADJ/NOPB TI

完全替代

 Synchronous Step-Down DC/DC Converter

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