5秒后页面跳转
捷配首页

Datasheet > MAX1843ETI+T
MAX1843ETI+T PDF预览

MAX1843ETI+T

更新时间： 2024-10-03 19:48:23
品牌 Logo 应用领域
美信 - MAXIM 开关
页数 文件大小 规格书
13页 844K
描述
Switching Regulator, Current-mode, 4.7A, 1000kHz Switching Freq-Max, 5 X 5 MM X 0.8 MM, LEAD FREE, WHHD-1, QFN-28

阅读下载

中文翻译

获取价格

MAX1843ETI+T 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFN
包装说明：HVQCCN, LCC28,.2SQ,20针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：5.19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：5.5 V最小输入电压：3 V
标称输入电压：3.3 VJESD-30 代码：S-XQCC-N28
JESD-609代码：e3长度：5 mm
湿度敏感等级：1功能数量：1
端子数量：28最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：4.7 A
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装等效代码：LCC28,.2SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：0.8 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：1000 kHz
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：5 mmBase Number Matches：1

MAX1843ETI+T 数据手册

 浏览型号MAX1843ETI+T的Datasheet PDF文件第2页浏览型号MAX1843ETI+T的Datasheet PDF文件第3页浏览型号MAX1843ETI+T的Datasheet PDF文件第4页浏览型号MAX1843ETI+T的Datasheet PDF文件第5页浏览型号MAX1843ETI+T的Datasheet PDF文件第6页浏览型号MAX1843ETI+T的Datasheet PDF文件第7页 
19-1986; Rev 2; 4/06  
2.7A, 1MHz, Low-Voltage, Step-Down Regulator with  
Internal Synchronous Rectification in TQFN Package  
General Description  
Features  
The MAX1843 constant-off-time, pulse-width modulated  
(PWM) step-down DC-DC converter is ideal for use in 5V  
and 3.3V to low-voltage conversion necessary in note-  
book and subnotebook computers. This device features  
an internal PMOS power switch and internal synchronous  
rectification for high efficiency and reduced component  
count. An external Schottky diode is not required. The  
internal 90mΩ power switch and 70mΩ nMOS synchro-  
nous-rectifier switch easily deliver continuous load cur-  
rents up to 2.7A. The MAX1843 produces a preset +2.5V,  
+1.8V, or +1.5V output voltage or an adjustable output  
♦
1ꢀ% OutOu%ꢁAAOꢂrAc  
♦ Ut%uo%1MHz%SwiuAhing%FꢂeqOenAc  
♦ 95ꢀ%EffiAienAc  
♦ Inueꢂnrl%tM S/nM S%SwiuAhes  
90mΩ/70mΩ  n-ResisurnAe%ru%V =%+4.5V%  
110mΩ/80mΩ  n-ResisurnAe%ru%V =%+3V  
IN  
IN  
♦  OutOu%Volurge  
+2.5V,%+1.8V,%oꢂ%+1.5V%Pin%SeleAurble  
+1.1V%uo%V ꢁdjOsurble  
IN  
from +1.1V to V . It achieves efficiencies as high as  
IN  
95%.  
♦ +3V%uo%+5.5V%IntOu%Volurge%Rrnge  
♦ 350µꢁ% teꢂruing%SOttlc%COꢂꢂenu  
♦ <%1µꢁ%ShOudown%SOttlc%COꢂꢂenu  
♦ Pꢂogꢂrmmrble%Consurnu- ff-Time% teꢂruion  
♦ Idle%Mode% teꢂruion%ru%Lighu%Lords  
♦ Theꢂmrl%ShOudown%  
The MAX1843 uses a unique current-mode, constant-off-  
time, PWM control scheme, which includes Idle Mode™  
to maintain high efficiency during light-load operation.  
The programmable constant-off-time architecture sets  
switching frequencies up to 1MHz, allowing the user to  
optimize performance trade-offs between efficiency, out-  
put switching noise, component size, and cost. The  
MAX1843 features an adjustable soft-start to limit surge  
currents during startup, a 100% duty-cycle mode for low  
dropout operation, and a low-power shutdown mode that  
disconnects the input from the output and reduces sup-  
ply current below 1µA. The MAX1843 is available in a 28-  
pin TQFN package with an exposed backside pad.  
♦ ꢁdjOsurble%Sofu-Surꢂu%InꢂOsh%COꢂꢂenu%Limiuing  
♦ 100ꢀ%DOuc%CcAle%DOꢂing%Low-DꢂotoOu% teꢂruion  
♦  OutOu%Shoꢂu-CiꢂAOiu%PꢂoueAuion  
♦ 28-Pin%TQFN%PrAkrge  
Applications  
5V or 3.3V to Low-Voltage Conversion  
CPU I/O Ring  
Chipset Supplies  
Notebook and Subnotebook Computers  
Ordering Information  
TEMP  
RꢁNGE  
PIN-  
PꢁCKꢁGE  
28 TQFN  
PKG  
C DE  
PꢁRT  
MAX1843ETI+  
-40°C to +85°C  
T2855-6  
+Denotes lead-free package.  
Pin Configuration  
Typical Configuration  
TOP VIEW  
OUTPUT  
+1.1V TO  
INPUT  
+3V TO  
+5.5V  
21  
20  
18  
17  
16  
19  
15  
IN  
LX  
FB  
V
IN  
22  
23  
24  
14  
REF  
N.C.  
10Ω  
MAX1843  
GND  
N.C.  
LX  
V
PGND  
GND  
FBSEL  
REF  
CC  
N.C.  
470pF  
2.2µF  
SHDN  
COMP  
TOFF  
25  
26  
N.C.  
N.C.  
LX  
N.C.  
1µF  
27  
28  
FB  
SHDN  
N.C.  
SS  
0.01µF  
8
TOFF  
1
3
6
7
TQFN  
Idle Mode is a trademark of Maxim Integrated Products, Inc.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...13

中文翻译

下载PDF

MAX1843ETI+T 替代型号

型号 品牌 替代类型 描述 数据表
MAX1843ETI+ MAXIM

类似代替

 Switching Regulator, Current-mode, 4.7A, 1000kHz Switching Freq-Max, 5 X 5 MM, 0.80 MM HEI

与MAX1843ETI+T相关器件

型号 品牌 获取价格 描述 数据表
MAX1844 MAXIM

获取价格

 		High-Speed Step-Down Controller with Accurate Current Limit for Notebook Computers
MAX1844EEP MAXIM

获取价格

 		High-Speed Step-Down Controller with Accurate Current Limit for Notebook Computers
MAX1844EEP+ MAXIM

获取价格

 		Switching Controller, Current-mode, 3A, 600kHz Switching Freq-Max, BICMOS, PDSO20, 0.150 I
MAX1844EEP-T MAXIM

获取价格

 		Switching Controller, Current-mode, 3A, 600kHz Switching Freq-Max, BICMOS, PDSO20, 0.150 I
MAX1844EGP MAXIM

获取价格

 		High-Speed Step-Down Controller with Accurate Current Limit for Notebook Computers
MAX1844EGP-T MAXIM

获取价格

 		暂无描述
MAX1844ETP MAXIM

获取价格

 		SMPS Controller
MAX1844ETP+ MAXIM

获取价格

 		暂无描述
MAX1844ETP-T MAXIM

获取价格

 		Switching Controller, Current-mode, 3A, 600kHz Switching Freq-Max, BICMOS, 5 X 5 MM, 0.80
MAX1844EVKIT MAXIM

获取价格

 		Evaluation Kit for the MAX1844

与MAX1843ETI+T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