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> LM2576-3.3WT
LM2576-3.3WT PDF预览

LM2576-3.3WT

更新时间： 2024-11-15 12:28:23
品牌 Logo 应用领域
麦瑞 - MICREL 稳压器开关局域网
页数 文件大小 规格书
9页 58K
描述
52kHz Simple 3A Buck Regulator

阅读下载

中文翻译

获取价格

LM2576-3.3WT 数据手册

 浏览型号LM2576-3.3WT的Datasheet PDF文件第2页浏览型号LM2576-3.3WT的Datasheet PDF文件第3页浏览型号LM2576-3.3WT的Datasheet PDF文件第4页浏览型号LM2576-3.3WT的Datasheet PDF文件第5页浏览型号LM2576-3.3WT的Datasheet PDF文件第6页浏览型号LM2576-3.3WT的Datasheet PDF文件第7页 
LM2576  
52kHz Simple 3A Buck Regulator  
General Description  
Features  
The LM2576 series of monolithic integrated circuits provide  
all the active functions for a step-down (buck) switching  
regulator.Fixedversionsareavailablewitha3.3V,5V,or12V  
fixed output. Adjustable versions have an output voltage  
rangefrom1.23Vto37V. Bothversionsarecapableofdriving  
a 3A load with excellent line and load regulation.  
• 3.3V, 5V, 12V, and adjustable output versions  
• Voltage over specified line and load conditions:  
Fixed version: ±3% max. output voltage  
Adjustable version: ±2% max. feedback voltage  
• Guaranteed 3A output current  
• Wide input voltage range:  
4V to 40V  
• Wide output voltage range  
1.23V to 37V  
These regulators are simple to use because they require a  
minimumnumberofexternalcomponentsandincludeinternal  
frequency compensation and a fixed-frequency oscillator.  
The LM2576 series offers a high efficiency replacement for  
popular three-terminal adjustable linear regulators. It  
substantially reduces the size of the heat sink, and in many  
cases no heat sink is required.  
• Requires only 4 external components  
• 52kHz fixed frequency internal oscillator  
• Low power standby mode I typically < 200µA  
Q
• 80% efficiency (adjustable version typically > 80%)  
• Uses readily available standard inductors  
• Thermal shutdown and current limit protection  
• 100% electrical thermal limit burn-in  
Astandardseriesofinductorsavailablefromseveraldifferent  
manufacturers are ideal for use with the LM2576 series. This  
feature greatly simplifies the design of switch-mode power  
supplies.  
The feedback voltage is guaranteed to ±2% tolerance for  
adjustable versions, and the output voltage is guaranteed to  
±3% for fixed versions, within specified input voltages and  
outputloadconditions.Theoscillatorfrequencyisguaranteed  
to ±10%. External shutdown is included, featuring less than  
200µA standby current. The output switch includes cycle-by-  
cycle current limiting and thermal shutdown for full protection  
under fault conditions.  
Applications  
• Simple high-efficiency step-down (buck) regulator  
• Efficient pre-regulator for linear regulators  
• On-card switching regulators  
• Positive to negative converter (inverting Buck-Boost)  
• Isolated Flyback Converter using minimum number of  
external components  
• Negative Boost Converter  
Typical Applications  
7V–40V  
7V–40V  
Unregulated  
DC Input  
Unregulated  
DC Input  
+5V, 1A  
Regulated  
Output  
+5V, 1A  
Regulated  
Output  
4
4
Feedback  
Feedback  
1
1
LM2575-5.0  
LM2575  
5
L1  
330µH  
D1  
L1  
330µH  
D1  
Output  
2
Output  
2
+VIN  
+VIN  
+
+
+
+
R2 3.09k  
R1 1k  
3
5
3
C
C
IN  
IN  
Gnd On/Off  
Gnd On/Off  
COUT  
330µF  
COUT  
330µF  
100µF  
100µF  
1N5822  
1N5822  
Note: Pin numbers are for TO-220 Package  
Note: Pin numbers are for TO-220 Package  
R2  
VOUT = 1.23 1 +  
( )  
R1  
Fixed Regulator in Typical Application  
Adjustable Regulator in Fixed Output Application  
Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com  
August 2005  
1
M9999-082605-B  
1234567...9

中文翻译

下载PDF

与LM2576-3.3WT相关器件

型号 品牌 获取价格 描述 数据表
LM2576-3.3WU MICREL

获取价格

 		52kHz Simple 3A Buck Regulator
LM2576-3.3WUTR MICROCHIP

获取价格

 		7.5A SWITCHING REGULATOR, 63kHz SWITCHING FREQ-MAX, PSSO5, ROHS COMPLIANT, TO-263, 5 PIN
LM2576-5 MOTOROLA

获取价格

 		Easy Switcher 3.0A Step-Down Voltage Regulator
LM2576-5.0 FCI

获取价格

 		SMIPLE SWITCHER 3.0A Step-Down Voltage Regulator
LM2576-5.0BT MICREL

获取价格

 		52kHz Simple 3A Buck Voltage Regulator
LM2576-5.0BT⒂ MICREL

获取价格

 		52kHz Simple 3A Buck Voltage Regulator
LM2576-5.0BT-LB02 MICROCHIP

获取价格

 		3.5A SWITCHING REGULATOR, 52kHz SWITCHING FREQ-MAX, PSFM5
LM2576-5.0BT-LB03 MICROCHIP

获取价格

 		3.5A SWITCHING REGULATOR, 52kHz SWITCHING FREQ-MAX, PSFM5
LM2576-5.0BU MICREL

获取价格

 		52kHz Simple 3A Buck Voltage Regulator
LM2576-5.0BUT&R MICROCHIP

获取价格

 		Switching Regulator, Voltage-mode, 7.5A, 63kHz Switching Freq-Max, PSSO5, TO-263, 5 PIN

与LM2576-3.3WT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