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LM25005MHX/NOPB PDF预览

LM25005MHX/NOPB

更新时间: 2024-01-06 14:52:36
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关
页数 文件大小 规格书
21页 757K
描述
IC 4.25 A SWITCHING REGULATOR, 525 kHz SWITCHING FREQ-MAX, PDSO20, TSSOP-20, Switching Regulator or Controller

LM25005MHX/NOPB 技术参数

是否Rohs认证:符合生命周期:Transferred
包装说明:HTSSOP, TSSOP20,.25Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.2Is Samacsys:N
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:7 V标称输入电压:24 V
JESD-30 代码:R-PDSO-G20JESD-609代码:e3
长度:6.5 mm湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:4.25 A封装主体材料:PLASTIC/EPOXY
封装代码:HTSSOP封装等效代码:TSSOP20,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, HEAT SINK/SLUG, 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:1.1 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:525 kHz温度等级:AUTOMOTIVE
端子面层:Matte Tin (Sn)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 mm
Base Number Matches:1

LM25005MHX/NOPB 数据手册

 浏览型号LM25005MHX/NOPB的Datasheet PDF文件第2页浏览型号LM25005MHX/NOPB的Datasheet PDF文件第3页浏览型号LM25005MHX/NOPB的Datasheet PDF文件第4页浏览型号LM25005MHX/NOPB的Datasheet PDF文件第5页浏览型号LM25005MHX/NOPB的Datasheet PDF文件第6页浏览型号LM25005MHX/NOPB的Datasheet PDF文件第7页 
February 2006  
LM25005  
42V, 2.5A Step-Down Switching Regulator  
General Description  
Features  
n Integrated 42V, 160mN-channel MOSFET  
n Ultra-wide input voltage range from 7V to 42V  
n Internal bias regulator  
The LM25005 switching regulator features all of the func-  
tions necessary to implement an efficient, high voltage buck  
regulator using a minimum of external components. This  
easy to use regulator includes a 42V, 160m, N-channel  
MOSFET, with an output current capability of 2.5 Amps. The  
regulator control method is based upon current mode control  
utilizing an emulated current ramp. Current mode control  
provides inherent line voltage feed-forward, cycle-by-cycle  
current limiting and ease of loop compensation. The use of  
an emulated control ramp reduces noise sensitivity of the  
pulse-width modulation circuit, allowing reliable control of  
very small duty cycles necessary in high input voltage appli-  
cations. The operating frequency is programmable from  
50kHz to 500kHz. An oscillator synchronization pin allows  
multiple LM25005 regulators to self-synchronize or to be  
synchronized to an external clock. Additional protection fea-  
tures include: current limit, thermal shutdown and remote  
shutdown capability. The device is available in a power  
enhanced TSSOP-20 package featuring an exposed die  
attach pad to aid thermal dissipation.  
n Adjustable output voltage from 1.225V  
n 1.5% feedback reference accuracy  
n Current mode control with emulated inductor current  
ramp  
n Single resistor oscillator frequency setting  
n Oscillator synchronization input  
n Programmable soft-start  
n Shutdown / Standby input  
n Wide bandwidth error amplifier  
n Thermal Shutdown  
Package  
n TSSOP-20EP (Exposed Pad)  
Simplified Application Schematic  
20170001  
© 2006 National Semiconductor Corporation  
DS201700  
www.national.com  

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