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> LM2637MDC
LM2637MDC PDF预览

LM2637MDC

更新时间： 2024-09-08 13:09:19
品牌 Logo 应用领域
美国国家半导体 - NSC 开关控制器
页数 文件大小 规格书
18页 343K
描述
IC SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, UUC, DIE, Switching Regulator or Controller

阅读下载

中文翻译

获取价格

LM2637MDC 技术参数

生命周期：Transferred包装说明：DIE, DIE OR CHIP
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.64
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.25 V
最小输入电压：4.75 V标称输入电压：5 V
JESD-30 代码：X-XUUC-N功能数量：1
封装主体材料：UNSPECIFIED封装代码：DIE
封装等效代码：DIE OR CHIP封装形状：UNSPECIFIED
封装形式：UNCASED CHIP认证状态：Not Qualified
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：1000 kHz
技术：BICMOS端子形式：NO LEAD
端子位置：UPPERBase Number Matches：1

LM2637MDC 数据手册

 浏览型号LM2637MDC的Datasheet PDF文件第2页浏览型号LM2637MDC的Datasheet PDF文件第3页浏览型号LM2637MDC的Datasheet PDF文件第4页浏览型号LM2637MDC的Datasheet PDF文件第5页浏览型号LM2637MDC的Datasheet PDF文件第6页浏览型号LM2637MDC的Datasheet PDF文件第7页 
October 1998  
LM2637  
Motherboard Power Supply Solution with a 5-Bit  
Programmable Switching Controller and Two Linear  
Regulator Controllers  
Both linear controllers have under voltage latch-off.  
General Description  
The LM2637 provides a comprehensive embedded power  
Features  
n Provides 3 regulated voltages  
n Power Good flag and output enable  
n Under-voltage latch-off  
Switching Section  
n Synchronous rectification  
supply solution for motherboards hosting high performance  
™
™
MPUs such as M II , Pentium II, K6-2 and other similar  
high performance MPUs. The LM2637 incorporates a 5-bit  
programmable, synchronous buck switching controller and  
two high-speed linear regulator controllers in a 24-pin SO  
package.  
Switching Section — The switching regulator controller fea-  
n 5-bit DAC programmable from 3.5V to 1.3V  
n Typical 1% DAC tolerance  
tures  
a
5-bit programmable DAC, over-current and  
power  
over-voltage protection, under-voltage latch-off,  
a
n Switching frequency: 50 kHz to 1 MHz  
n Two levels of over-voltage protection  
n Two methods of over-current protection  
n Adaptive non-overlapping FET gate drives  
n Soft start without external capacitor  
Linear Section  
n N-FET and NPN driving capability  
n Ultra fast response speed  
n Output voltages default to 1.5V and 2.5V yet adjustable  
good signal, and output enable. The 5-bit DAC has a typical  
tolerance of 1%. There are two user-selectable over-current  
protection methods. One provides accurate over-current pro-  
tection with the use of an external sense resistor. The other  
saves cost by taking advantage of the rDS_ON of the  
high-side FET. The over voltage protection provides two lev-  
els of protection. The first level keeps the high-side FET off  
and the low-side FET on. The second provides a gate signal  
that can be used to fire an external SCR.  
Linear Section — The two linear regulator controllers fea-  
ture wide control bandwidth, N-FET and NPN transistor driv-  
ing capability, and an adjustable output voltage. The wide  
control bandwidth makes meeting fast load transient re-  
sponse requirement such as that of the GTL+ bus an easy  
job. In minimum configuration, the two controllers default to  
1.5V and 2.5V respectively.  
Applications  
n Embedded power supplies for PC motherboards  
n Triple DC/DC power supplies  
n Programmable high current DC/DC power supply  
Pin Configuration  
24-Lead SOIC  
DS100848-1  
Top View  
NS Package Number M24B  
™
M II is a trademark of Cyrix Corporation a wholly owned subsidiary of National Semiconductor Corporation.  
™
Pentium is a trademark of Intel Corporation.  
K6 is trademark of Advanced Micro Devices, Inc.  
© 1999 National Semiconductor Corporation  
DS100848  
www.national.com  
1234567...18

中文翻译

下载PDF

与LM2637MDC相关器件

型号 品牌 获取价格 描述 数据表
LM2637MWC NSC

获取价格

 		IC SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, UUC, WAFER, Switching Regulator or C
LM2637MX/NOPB TI

获取价格

 		SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PDSO24, SOIC-24
LM2638 NSC

获取价格

 		Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two L
LM2638 TI

获取价格

 		LM2638 Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller an
LM2638M NSC

获取价格

 		Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller and Two L
LM2638M/NOPB TI

获取价格

 		SWITCHING CONTROLLER, 286kHz SWITCHING FREQ-MAX, PDSO24, SOIC-24
LM2638MX TI

获取价格

 		LM2638 Motherboard Power Supply Solution with a 5-Bit Programmable Switching Controller an
LM2639 NSC

获取价格

 		5-Bit Programmable, High Frequency Multi-phase PWM Controller
LM2639M NSC

获取价格

 		5-Bit Programmable, High Frequency Multi-phase PWM Controller
LM2639M/NOPB TI

获取价格

 		SWITCHING CONTROLLER, 8700kHz SWITCHING FREQ-MAX, PDSO24, PLASTIC, SOIC-24

与LM2637MDC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