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LM25005MHX PDF预览

LM25005MHX

更新时间: 2024-01-22 05:05:32
品牌 Logo 应用领域
美国国家半导体 - NSC 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
22页 413K
描述
42V, 2.5A Step-Down Switching Regulator

LM25005MHX 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 数据手册

 浏览型号LM25005MHX的Datasheet PDF文件第2页浏览型号LM25005MHX的Datasheet PDF文件第3页浏览型号LM25005MHX的Datasheet PDF文件第4页浏览型号LM25005MHX的Datasheet PDF文件第5页浏览型号LM25005MHX的Datasheet PDF文件第6页浏览型号LM25005MHX的Datasheet PDF文件第7页 
March 2006  
LM25005  
42V, 2.5A Step-Down Switching Regulator  
General Description  
Features  
The LM25005 switching regulator features all of the functions  
necessary to implement an efficient, high voltage buck regu-  
lator 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 in-  
herent line voltage feed-forward, cycle-by-cycle current limit-  
ing and ease of loop compensation. The use of an emulated  
control ramp reduces noise sensitivity of the pulse-width mod-  
ulation circuit, allowing reliable control of very small duty  
cycles necessary in high input voltage applications. The op-  
erating frequency is programmable from 50kHz to 500kHz.  
An oscillator synchronization pin allows multiple LM25005  
regulators to self-synchronize or to be synchronized to an ex-  
ternal clock. Additional protection features 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.  
Integrated 42V, 160mN-channel MOSFET  
Ultra-wide input voltage range from 7V to 42V  
Internal bias regulator  
Adjustable output voltage from 1.225V  
1.5% feedback reference accuracy  
Current mode control with emulated inductor current ramp  
Single resistor oscillator frequency setting  
Oscillator synchronization input  
Programmable soft-start  
Shutdown / Standby input  
Wide bandwidth error amplifier  
Thermal Shutdown  
Package  
TSSOP-20EP (Exposed Pad)  
Simplified Application Schematic  
20170001  
© 2007 National Semiconductor Corporation  
201700  
www.national.com  

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