LM2841XMK-ADJL PDF预览

LM2841XMK-ADJL

更新时间: 2025-08-02 05:42:03
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器
页数 文件大小 规格书
14页 313K
描述
300 mA/600 mA up to 42V Input Step-Down DC/DC Regulator in Thin SOT-23

LM2841XMK-ADJL 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TSOT-6Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.17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:42 V最小输入电压:4.5 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G6
JESD-609代码:e0长度:2.97 mm
湿度敏感等级:1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:0.525 A
封装主体材料:PLASTIC/EPOXY封装代码:VSSOP
封装等效代码:TSOP6,.11,37封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, VERY 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 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:750 kHz
温度等级:AUTOMOTIVE端子面层:Tin/Lead (Sn85Pb15)
端子形式:GULL WING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:40
宽度:1.65 mmBase Number Matches:1

LM2841XMK-ADJL 数据手册

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September 2, 2009  
LM2841  
LM2842  
300 mA/600 mA up to 42V Input Step-Down DC/DC  
Regulator in Thin SOT-23  
General Description  
Features  
The LM2841 and LM2842 are PWM DC/DC buck (step-down)  
regulators. With a wide input range from 4.5V-42V, they are  
suitable for a wide range of applications such as power con-  
ditioning from unregulated sources. They feature a low  
RDSON (0.9Ω typical) internal switch for maximum efficiency  
(85% typical). Operating frequency is fixed at 550 kHz (X ver-  
sion) and 1.25 MHz (Y version) allowing the use of small  
external components while still being able to have low output  
voltage ripple. Soft-start can be implemented using the shut-  
down pin with an external RC circuit allowing the user to tailor  
the soft-start time to a specific application.  
Input voltage range of 4.5V to 42V  
Output current options of 300 mA and 600 mA  
Feedback pin voltage of 0.765V  
550 kHz (X) or 1.25 Mhz (Y) switching frequency  
Low shutdown IQ, 16 µA typical  
Short circuit protected  
Internally compensated  
Soft-start circuitry  
Small overall solution size (TSOT-6L package)  
The LM2842 is optimized for up to 600 mA load currents while  
the LM2841 is optimized for up to 300 mA load current. Both  
have a 0.765V nominal feedback voltage.  
Applications  
Battery powered equipment  
Additional features include: thermal shutdown, VIN under-volt-  
age lockout, and gate drive under-voltage lockout. The  
LM2841 and LM2842 are available in a low profile TSOT-6L  
package.  
Industrial distributed power applications  
Portable media players  
Portable hand held instruments  
Typical Application Circuit  
30036702  
© 2009 National Semiconductor Corporation  
300367  
www.national.com  

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