5秒后页面跳转
捷配首页

Datasheet > MAX38641
MAX38641 PDF预览

MAX38641

更新时间： 2023-12-20 18:44:49
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
18页 994K
描述
微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转换器

阅读下载

中文翻译

获取价格

MAX38641 数据手册

 浏览型号MAX38641的Datasheet PDF文件第11页浏览型号MAX38641的Datasheet PDF文件第12页浏览型号MAX38641的Datasheet PDF文件第13页浏览型号MAX38641的Datasheet PDF文件第15页浏览型号MAX38641的Datasheet PDF文件第16页浏览型号MAX38641的Datasheet PDF文件第17页 
MAX38640–MAX38643  
Tiny 1.8V to 5.5V Input, 330nA I , 700mA  
Q
nanoPower Buck Converter  
Detailed Description  
The MAX38640–MAX38643 are ultra-low I (330nA) buck converters that step down from 1.8V to 5.5V to wide range of  
Q
output voltages between 0.5V and 5V. The output voltage is either programmable on the MAX38640A/1A/2A/3A versions  
using an external resistor or fixed for the MAX38640B/1B/2B/3B versions. The external R  
programs the output voltage upon startup for the MAX38640A/1A/2A/3A versions.  
resistor on the R  
pin  
SEL  
SEL  
The buck converter automatically switches between ultra-low-power mode (ULPM), low-power mode (LPM), and high-  
power mode (HPM) to better service the load, depending on the load current. The buck converter overregulates in ultra-  
low-power mode to allow the output capacitor to handle the transient load currents. The device has 90% duty cycle  
limitation.  
Active discharge resistor in the MAX38640/MAX38641/MAX38643 pulls OUT to ground when the part is in shutdown.  
Active discharge has been strategically omitted for the MAX38642 to preserve the charge on the output capacitor in  
shutdown. Harvesting applications where the output is connected to a supercapacitor can take advantage of reverse-  
current blocking feature to preserve the charge on the output capacitor even if the input were to fall below the output in  
shutdown. Applications where two MAX38642 buck converters are connected in parallel to drive the load can have the  
input of one of the buck converters to go to 0V in shutdown without dragging the output down or loading the other buck.  
Voltage Configuration  
The MAX38640A/1A/2A/3A includes an R  
pin to configure the output voltage and input UVLO threshold on startup.  
SEL  
Resistors with tolerance 1% (or better) should be chosen, with nominal values specified in Table 1.  
Table 1. MAX38640A/1A/2A/3A R  
Selection Table  
SEL  
TARGET OUTPUT VOLTAGE (V)  
R
SEL  
(kΩ)  
INPUT UVLO THRESHOLD, RISING (V)  
2.5  
2
OPEN  
909  
768  
634  
536  
452  
383  
324  
267  
226  
191  
162  
133  
113  
95.3  
80.6  
66.5  
56.2  
47.5  
40.2  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
1.75  
2.6  
1.8  
1.5  
1.3  
1.25  
1.2  
1.15  
1.1  
1.05  
1
0.95  
0.9  
0.85  
0.8  
0.75  
0.7  
3.3  
3
2.6  
2.8  
2.6  
www.analog.com  
Analog Devices | 14  
 
1...1112131415161718

中文翻译

下载PDF

与MAX38641相关器件

型号 品牌 获取价格 描述 数据表
MAX38641AELT+ MAXIM

获取价格

 		Switching Regulator,
MAX38641AENT+ MAXIM

获取价格

 		Switching Regulator,
MAX38641BELT+ MAXIM

获取价格

 		Switching Regulator,
MAX38641BENT+ MAXIM

获取价格

 		Switching Regulator,
MAX38642 ADI

获取价格

 		微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转
MAX38642AENT+ MAXIM

获取价格

 		Switching Regulator,
MAX38642BELT+ MAXIM

获取价格

 		Switching Regulator,
MAX38643 ADI

获取价格

 		微小尺寸、1.8V–5.5V输入、330nA IQ、700mA nanoPower降压型转
MAX38647B ADI

获取价格

 		1.8V至5.5V输入、440nA IQ、175mA小型nanoPower降压转换器，具有
MAX3864E/D MAXIM

获取价格

 		2.5Gbps, +3V to +5.5V, Wide Dynamic Range Transimpedance Preamplifier

与MAX38641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