5秒后页面跳转
捷配首页

Datasheet > LTC3801
LTC3801 PDF预览

LTC3801

更新时间： 2024-11-05 22:55:55
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
12页 241K
描述
Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT

阅读下载

中文翻译

获取价格

LTC3801 数据手册

 浏览型号LTC3801的Datasheet PDF文件第2页浏览型号LTC3801的Datasheet PDF文件第3页浏览型号LTC3801的Datasheet PDF文件第4页浏览型号LTC3801的Datasheet PDF文件第5页浏览型号LTC3801的Datasheet PDF文件第6页浏览型号LTC3801的Datasheet PDF文件第7页 
LTC3801/LTC3801B  
Micropower  
Constant Frequency Step-Down  
DC/DC Controllers in ThinSOT  
U
FEATURES  
DESCRIPTIO  
The LTC®3801/LTC3801B are constant frequency cur-  
rent mode step-down DC/DC controllers in a low profile  
■
High Efficiency: Up to 94%  
■
Very Low No-Load Quiescent Current:  
(1mm max) 6-lead SOT-23 (ThinSOTTM  
) package. The  
Only 16µA (LTC3801)  
■
High Output Currents Easily Achieved  
parts provide excellent AC and DC load and line regula-  
tion with ±1.5% output voltage accuracy. The LTC3801  
consumes only 195µA of quiescent current in normal  
operation, dropping to 16µA under no-load conditions.  
■
Internal Soft-Start  
■
Wide VIN Range: 2.4V to 9.8V  
■
Low Dropout: 100% Duty Cycle  
■
Constant Frequency 550kHz Operation  
TheLTC3801/LTC3801Bincorporateanundervoltagelock-  
out feature that shuts down the device when the input  
voltage falls below 2.2V. The LTC3801 automatically  
switches into Burst Mode operation at light loads which  
enhancesefficiencyatlowoutputcurrent.IntheLTC3801B,  
BurstModeoperationisdisabledforloweroutputrippleat  
light loads.  
Burst Mode® Operation for High Efficiency  
■
at Light Loads (LTC3801)  
■
Burst Mode Operation Disabled for Lower Output  
Ripple at Light Loads (LTC3801B)  
■
Output Voltage as Low as 0.8V  
■
±1.5% Voltage Reference Accuracy  
■
Current Mode Operation for Excellent Line and Load  
To further maximize the life of a battery source, the  
external P-channel MOSFET is turned on continuously in  
dropout (100% duty cycle). High switching frequency of  
550kHz allows the use of a small inductor.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Burst Mode is a registered trademark of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
Transient Response  
■
■
Only 6µA Supply Current in Shutdown (LTC3801)  
Low Profile (1mm) SOT-23 Package  
U
APPLICATIO S  
■
1- or 2-Cell Li-Ion Battery-Powered Applications  
■
Wireless Devices  
■
Portable Computers  
Distributed Power Systems  
■
U
LTC3801 Efficiency vs Load Current*  
TYPICAL APPLICATIO  
100  
V
= 2.5V  
OUT  
V
= 3.3V  
95  
90  
85  
IN  
V
= 4.2V  
IN  
550kHz Micropower Step-Down DC/DC Controller  
220pF  
V
= 6.6V  
IN  
V
IN  
10k  
80  
75  
2.7V TO 9.8V  
I
/RUN  
LTC3801/  
V
TH  
IN  
–
10µF  
0.025Ω  
V
= 8.4V  
V
= 9.8V  
IN  
LTC3801B  
IN  
70  
65  
60  
55  
50  
GND  
SENSE  
V
PGATE  
FB  
402k  
4.7µH  
V
OUT  
866k  
2.5V  
2A  
+
0.1  
1
10  
100  
1000 10000  
47µF  
LOAD CURRENT (mA)  
3801 TA02  
3801 TA01  
*SEE NO-LOAD IQ vs INPUT VOLTAGE ON THE LAST PAGE OF THIS DATA SHEET  
3801f  
1
1234567...12

中文翻译

下载PDF

与LTC3801相关器件

型号 品牌 获取价格 描述 数据表
LTC3801_1 Linear

获取价格

 		Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT
LTC3801_15 Linear

获取价格

 		Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT
LTC3801B Linear

获取价格

 		Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT
LTC3801B_15 Linear

获取价格

 		Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT
LTC3801BES6 Linear

获取价格

 		Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT
LTC3801BES6#PBF Linear

获取价格

 		IC 1 A SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO6, MO-193, PLASTIC, TSOT-23,
LTC3801BES6#TR Linear

获取价格

 		LTC3801 - Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT; Package: S
LTC3801BES6#TRM Linear

获取价格

 		LTC3801 - Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT; Package: S
LTC3801BES6#TRMPBF Linear

获取价格

 		LTC3801 - Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT; Package: S
LTC3801BES6#TRPBF Linear

获取价格

 		LTC3801 - Micropower Constant Frequency Step-Down DC/DC Controllers in ThinSOT; Package: S

与LTC3801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