5秒后页面跳转
捷配首页

Datasheet > 电源电路 > 开关式稳压器或控制器> LM20343MHX
LM20343MHX PDF预览

LM20343MHX

更新时间： 2024-11-12 04:20:15
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输出元件
页数 文件大小 规格书
20页 545K
描述
36V, 3A Adjustable Frequency Synchronous Buck Regulator

阅读下载

中文翻译

获取价格

LM20343MHX 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：TSSOP-20Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.19Is Samacsys：N
其他特性：OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.8 TO 5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：36 V最小输入电压：4.5 V
标称输入电压：12 VJESD-30 代码：R-PDSO-G20
JESD-609代码：e0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：6 A
封装主体材料：PLASTIC/EPOXY封装代码：HSSOP
封装等效代码：TSSOP20,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：BUCK
最大切换频率：825 kHz温度等级：AUTOMOTIVE
端子面层：Tin/Lead (Sn85Pb15)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：40宽度：4.4 mm
Base Number Matches：1

LM20343MHX 数据手册

 浏览型号LM20343MHX的Datasheet PDF文件第2页浏览型号LM20343MHX的Datasheet PDF文件第3页浏览型号LM20343MHX的Datasheet PDF文件第4页浏览型号LM20343MHX的Datasheet PDF文件第5页浏览型号LM20343MHX的Datasheet PDF文件第6页浏览型号LM20343MHX的Datasheet PDF文件第7页 
August 12, 2008  
LM20343  
36V, 3A Adjustable Frequency Synchronous Buck  
Regulator  
General Description  
The LM20343 is a full featured synchronous buck regulator  
capable of delivering up to 3A of load current. The current  
mode control loop is externally compensated with only two  
components, offering both high performance and ease of use.  
The device is optimized to work over the input voltage range  
of 4.5V to 36V making it well suited for high voltage systems.  
Features  
4.5V to 36V input voltage range  
■
■
3A output current, 5.2A peak current  
130 mΩ/110 mΩ integrated power MOSFETs  
94% peak efficiency with synchronous rectification  
1.5% feedback voltage accuracy  
■
■
■
■
■
■
■
■
■
■
■
Current mode control, selectable compensation  
Resistor programmed, 1MHz capable oscillator  
Adjustable output voltage down to 0.8V  
Compatible with pre-biased loads  
The device features internal Over Voltage Protection (OVP)  
and Over Current Protection (OCP) circuits for increased sys-  
tem reliability. A precision Enable pin and integrated UVLO  
allows the turn on of the device to be tightly controlled and  
sequenced. Startup inrush currents are limited by both an in-  
ternally fixed and externally adjustable soft-start circuit. Fault  
detection and supply sequencing are possible with the inte-  
grated power good (PGOOD) circuit.  
Programmable soft-start with external capacitor  
Precision enable pin with hysteresis  
OVP, UVLO inputs and PGOOD output  
The frequency of this device can be adjusted from 250 kHz to  
1.0 MHz by connecting an external resistor from the RT pin  
to ground.  
Internally protected with peak current limit, thermal  
shutdown and restart  
Accurate current limit minimizes inductor size  
Non-linear current mode slope compensation  
eTSSOP-20 exposed pad package  
■
■
■
The LM20343 is designed to work well in multi-rail power  
supply architectures. The output voltage of the device can be  
configured to track a higher voltage rail using the SS/TRK pin.  
If the output of the LM20343 is pre-biased at startup it will not  
sink current to pull the output low until the internal soft-start  
ramp exceeds the voltage at the feedback pin.  
Applications  
Simple to design, high efficiency point of load regulation  
from a 4.5V to 36V bus  
■
The LM20343 is offered in an exposed pad 20-pin eTSSOP  
package that can be soldered to the PCB, eliminating the  
need for bulky heatsinks.  
High Performance DSPs, FPGAs, ASICs and  
Microprocessors  
■
Communications Infrastructure, Automotive  
■
Simplified Application Circuit  
30051701  
© 2008 National Semiconductor Corporation  
300517  
www.national.com  
1234567...20

中文翻译

下载PDF

与LM20343MHX相关器件

型号 品牌 获取价格 描述 数据表
LM20343MHX/NOPB TI

获取价格

 		LM20343 36V, 3A Adjustable Frequency Synchronous Buck Regulator
LM2035 ROHM

获取价格

 		5 x 7 matrix displays
LM-2035 ROHM

获取价格

 		5 x 7 matrix displays
LM-2035_1 ROHM

获取价格

 		5 x 7 matrix display
LM-2035LB ROHM

获取价格

 		5 x 7 matrix display
LM-2035-LB ROHM

获取价格

 		5X7 DOT MATRIX DISPLAY, HIGH LUMINOSITY RED, 17.24 mm
LM-2035LB3F ROHM

获取价格

 		Smart/Normal 5 X 7 Dot Matrix LED Display, Bright Red
LM-2035MB ROHM

获取价格

 		5 x 7 matrix display
LM-2035MB3F ROHM

获取价格

 		Smart/Normal 5 X 7 Dot Matrix LED Display, Green
LM-2035MGB ROHM

获取价格

 		Smart/Normal 5 X 7 Dot Matrix LED Display, Green, 17.78mm

与LM20343MHX相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证