datasheet
电子工程世界电子工程世界电子工程世界
Datasheet
型号

关键词

搜索
关键词

型号

搜索
Datasheet> 器件分类 > 电源/电源管理> 电源电路> LT3645IUD#PBF
PDF数据手册
文档预览

LT3645IUD#PBF

产品描述IC REG DL BUCK/LINEAR 16-QFN
产品类别电源/电源管理    电源电路   
文件大小306KB，共24页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
标准
下载文档 详细参数 选型对比 全文预览

LT3645IUD#PBF概述

IC REG DL BUCK/LINEAR 16-QFN

LT3645IUD#PBF规格参数

参数名称属性值
Brand NameLinear Technology
是否Rohs认证符合
厂商名称Linear ( ADI )
零件包装代码QFN
包装说明HVQCCN, LCC16,.12SQ,20
针数16
制造商包装代码UD
Reach Compliance Codecompliant
ECCN代码EAR99
其他特性ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR
模拟集成电路 - 其他类型SWITCHING REGULATOR
控制模式CURRENT-MODE
最大输入电压36 V
最小输入电压3.6 V
标称输入电压12 V
JESD-30 代码S-PQCC-N16
JESD-609代码e3
长度3 mm
湿度敏感等级1
功能数量1
端子数量16
最高工作温度125 °C
最低工作温度-40 °C
最大输出电流1.25 A
封装主体材料PLASTIC/EPOXY
封装代码HVQCCN
封装等效代码LCC16,.12SQ,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）NOT SPECIFIED
认证状态Not Qualified
座面最大高度0.8 mm
表面贴装YES
切换器配置BUCK
最大切换频率825 kHz
技术BIPOLAR
温度等级AUTOMOTIVE
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NOT SPECIFIED
宽度3 mm

文档预览

下载PDF文档
LT3645
36V 500mA Step-Down
Regulator and 200mA LDO
FEATURES
n
DESCRIPTION
The LT
®
3645 is a dual output regulator combining a 500mA
buck regulator and a 200mA low dropout linear regula-
tor (LDO). The wide input voltage range of 3.6V to 36V
makes the LT3645 suitable for regulating power from a
wide variety of sources, including 24V industrial supplies
and automotive batteries. Its high operating frequency
allows the use of tiny, low cost inductors and capacitors,
resulting in a very small solution.
Cycle-by-cycle current limit and frequency foldback pro-
vide protection against shorted outputs. Soft-start and
frequency foldback eliminate input current surge during
start-up.
The linear regulator operates from the V
CC2
pin at voltages
down to 1.2V. It supplies 200mA of output current with a
typical dropout voltage of 310mV.
Other features of the LT3645 include a <2μA shutdown,
short circuit protection, soft-start and thermal shutdown.
The LT3645 is available in the thermally enhanced 16-lead
(3mm × 3mm) QFN package, or a 12-lead MSE package.
L,
LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners.
n
n
n
n
n
n
n
n
Wide Input Range:
Operation from 3.6V to 36V
Overvoltage Lockout Protects Circuit Through
55V Transients on Input
500mA Output Current Switching Regulator
High Switching Frequency: 750kHz
200mA Low Dropout Linear Regulator
1.2V to 16V Input; 0.8V to 8V Output
310mV Dropout Voltage V
CC2
to OUT2
Precision Programmable Undervoltage Lockout
Short-Circuit Robust
Internal Soft-Start
<2μA Shutdown Current
Small Thermally Enhanced 16-Lead (3mm × 3mm)
QFN and 12-Lead MSE Packages
APPLICATIONS
n
n
Automotive CMOS Image Sensors
Industrial/Automotive Micro-Controller Supply
TYPICAL APPLICATION
3.3V/5V Step-Down Converter
90
BOOST
6.2V TO 36V
1μF
V
IN
LT3645
DA
ON OFF
EN/UVLO
FB
10k
EN2
PGOOD
NPG
V
CC2
OUT2
31.6k
FB2
GND
10k
3645 TA01a
Buck Regulator Efficiency
V
OUT
= 5V
5V
300mA
52.3k
10μF
EFFICIENCY (%)
80
V
OUT
= 3.3V
70
0.1μF
15μH
SW
60
3.3V
200mA
2.2μF
50
V
IN
= 12V
0
100
400
300
200
LOAD CURRENT (mA)
500
3645 TA01b
3645f
1

LT3645IUD#PBF相似产品对比

LT3645IUD#PBF LT3645IMSE#TRPBF LT3645IMSE#PBF LT3645EUD#TRPBF LT3645EMSE#PBF LT3645EMSE#TRPBF LT3645HMSE#TRPBF LT3645HMSE#PBF LT3645IUD#TRPBF LT3645EUD#PBF
描述 IC REG DL BUCK/LINEAR 16-QFN IC REG DL BUCK/LINEAR 12-MSOP IC REG DL BUCK/LINEAR 12-MSOP IC REG DL BUCK/LINEAR 16-QFN IC REG DL BUCK/LINEAR 12-MSOP IC REG DL BUCK/LINEAR 12-MSOP IC REG DL BUCK/LINEAR 12-MSOP IC REG DL BUCK/LINEAR 12-MSOP IC REG DL BUCK/LINEAR 16-QFN IC REG DL BUCK/LINEAR 16-QFN
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology
是否Rohs认证 符合 符合 符合 符合 符合 符合 符合 符合 符合 符合
零件包装代码 QFN MSOP MSOP QFN MSOP MSOP MSOP MSOP QFN QFN
包装说明 HVQCCN, LCC16,.12SQ,20 HTSSOP, TSSOP12,.19 HTSSOP, TSSOP12,.19 HVQCCN, LCC16,.12SQ,20 HTSSOP, TSSOP12,.19 HTSSOP, TSSOP12,.19 HTSSOP, TSSOP12,.19 HTSSOP, TSSOP12,.19 HVQCCN, LCC16,.12SQ,20 HVQCCN, LCC16,.12SQ,20
针数 16 12 12 16 12 12 12 12 16 16
制造商包装代码 UD MSE MSE UD MSE MSE MSE MSE UD UD
Reach Compliance Code compliant compliant compliant compliant compliant compliant compliant compliant compliant compliant
ECCN代码 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
其他特性 ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8 TO 8V, ALSO OPERATES AS LDO REGULATOR
模拟集成电路 - 其他类型 SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
控制模式 CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
最大输入电压 36 V 36 V 36 V 36 V 36 V 36 V 36 V 36 V 36 V 36 V
最小输入电压 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
标称输入电压 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V 12 V
JESD-30 代码 S-PQCC-N16 R-PDSO-G12 R-PDSO-G12 S-PQCC-N16 R-PDSO-G12 R-PDSO-G12 R-PDSO-G12 R-PDSO-G12 S-PQCC-N16 S-PQCC-N16
JESD-609代码 e3 e3 e3 e3 e3 e3 e3 e3 e3 e3
长度 3 mm 4.039 mm 4.039 mm 3 mm 4.039 mm 4.039 mm 4.039 mm 4.039 mm 3 mm 3 mm
湿度敏感等级 1 1 1 1 1 1 1 1 1 1
功能数量 1 1 1 1 1 1 1 1 1 1
端子数量 16 12 12 16 12 12 12 12 16 16
最大输出电流 1.25 A 1.25 A 1.25 A 1.25 A 1.25 A 1.25 A 1.25 A 1.25 A 1.25 A 1.25 A
封装主体材料 PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 HVQCCN HTSSOP HTSSOP HVQCCN HTSSOP HTSSOP HTSSOP HTSSOP HVQCCN HVQCCN
封装等效代码 LCC16,.12SQ,20 TSSOP12,.19 TSSOP12,.19 LCC16,.12SQ,20 TSSOP12,.19 TSSOP12,.19 TSSOP12,.19 TSSOP12,.19 LCC16,.12SQ,20 LCC16,.12SQ,20
封装形状 SQUARE RECTANGULAR RECTANGULAR SQUARE RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR SQUARE SQUARE
封装形式 CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度） NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
认证状态 Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
座面最大高度 0.8 mm 1.1 mm 1.1 mm 0.8 mm 1.1 mm 1.1 mm 1.1 mm 1.1 mm 0.8 mm 0.8 mm
表面贴装 YES YES YES YES YES YES YES YES YES YES
切换器配置 BUCK BUCK BUCK BUCK BUCK BUCK BUCK BUCK BUCK BUCK
最大切换频率 825 kHz 825 kHz 825 kHz 825 kHz 825 kHz 825 kHz 825 kHz 825 kHz 825 kHz 825 kHz
技术 BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR BIPOLAR
端子面层 Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
端子形式 NO LEAD GULL WING GULL WING NO LEAD GULL WING GULL WING GULL WING GULL WING NO LEAD NO LEAD
端子节距 0.5 mm 0.65 mm 0.65 mm 0.5 mm 0.65 mm 0.65 mm 0.65 mm 0.65 mm 0.5 mm 0.5 mm
端子位置 QUAD DUAL DUAL QUAD DUAL DUAL DUAL DUAL QUAD QUAD
处于峰值回流温度下的最长时间 NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
宽度 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm 3 mm
厂商名称 Linear ( ADI ) Linear ( ADI ) - Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) - - Linear ( ADI ) Linear ( ADI )
最高工作温度 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C - - 125 °C 125 °C
温度等级 AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE OTHER OTHER OTHER - - AUTOMOTIVE OTHER

推荐资源

无线传声器电路

松下牌NR-172TA-X型电冰箱电路

直接控制电路

电子钟附加电路

电涡流传感器在钢板测宽中的应用电路

输出0~20mA的温度测量电路

添加API的Lib后报错
在做Ti2808的在线烧录，添加API的lib后，系统编译报错，开始找不到lib，后来把lib拷到了cgtool那边的文件夹里 cmd文件添加 /* Allocate program areas: */ Flash28_API: { -lFlash2808_API_V ......
milkshamo 微控制器 MCU
中断现场保护与返回
IsrIRQ sub sp,sp,#4 ;reserved for PC ；堆栈指针减4，空出一个单元，以便后面放入PC需要的字（看不懂英文吗？） stmfd sp!,{r8-r9} ；r8,r9入 ......
niantianxia 嵌入式系统
TI C2000 MCU Boot过程分析-以TMS320F28069为例
每一款MCU从上电复位到代码运行到main函数这之间的一段过程就是MCU的boot，其实不只是MCU，其他任何类型的processor都有这样的一个过程，这里以TI C2000 F28069为例，分析其Boot过程，以帮助对 ......
Aguilera 微控制器 MCU
MCS51系列学习
MCS51系列学习...
51单片机
vxworks支持的网络协议
很多书上看到说vxworks支持TCP/IP等网络协议 如果要自己写一个网络协议，大概的流程是什么样子的 或者给个思路 谢了~ 刚开始接触这个，实在是不知道要怎么下手...
stingxing 实时操作系统RTOS
有关430电压兼容问题
msp430f149可以跟sja1000直接相连吗？因为看到430的电压是1.8~3.6v，sja1000的电压是5v，想简化电路，可不可以直接连呢？ 还有想问下sja1000可以用1.8~3.6电压驱动吗？...
四叶草乐乐 微控制器 MCU
器件捷径:   S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

热门器件

  1. GB240128BNYAAMUA-V00
  2. 240-382WP8-98PPCDHN
  3. PFC-W1206SP-06-30R9-F
  4. P6FMBJ400CA-W
  5. Q62702-C1713
  6. 2220J0160105KBT
  7. CSR23C685KP
  8. 3199BH563S025JPR1
  9. 1.5SMC200T/R13
  10. A3961WRA-10P-V0-BK-G-C197D82E46
  11. UPZ1608U331-1R5TF
  12. 0402WGF2873TCE

开源项目推荐更多

  1. 使用 Infineon Technologies AG 的 IRU1261 的参考设计
  2. APD2106 PWM 降压控制器使用 14.4 V 至 20.0 V 作为输入电压
  3. LT3470AHDDB 2.5V 降压转换器的典型应用电路
  4. LT8630IFE 12V、0.6A 降压转换器的典型应用电路
  5. ADR392A 4.096 Vout 微功率、低噪声精密电压基准的典型应用
  6. AVR465 具有篡改检测功能的单相电力/电能表
  7. TC78B025FTG 三相无刷直流电机驱动器评估板
  8. LTM4628EV 双路 8A、1.5V 和 1.2V 输出 DC/DC 模块稳压器的典型应用电路
  9. LF25ABDT-TR 2.5V低压灯泡典型应用
  10. 具有内部开关的 PAM2861 1A LED 驱动器的典型应用

热门活动更多

  1. 【有奖直播】TI 工业自动化与机器人功能安全解决方案线上研讨会
  2. 是德科技重磅新品发布会｜新一代无线测试利器VXT：开启 RF 与模拟 IQ 全链路测试
  3. 你晒单我买单2026第1期报名中，DigiKey得捷带您畅享好物！
  4. 免费申请《一本书讲透汽车功能安全：标准详解与应用实践》，挑战《ISO26262标准》共读，赢好礼
  5. 装备焕新月：e络盟Multicomp Pro系列产品，小投入，大升级 ―― 装备焕新惊喜体验
  6. MPS 机器人模块设计大赛报名重磅开启，锻造硬实力，让想法照进现实！
  7. 有奖直播：ADI BMS 硬件和软件设计指南
  8. 免费申请：红外定位摄像头SEN0158
  9. 罗德与施瓦茨―从天到地 从测试者角度 解读NTN技术
  10. 有奖直播：AI基础设施技术测试周

热门文章更多

  1. 电缆故障测试仪的粗测方法
  2. ADI浪涌抑制器——为产品的可靠运行保驾护航
  3. 华为推FreeBuds Pro 566版本众测：优化降噪体验，版本无法退回
  4. TDS 210数字式示波器的首要功用
  5. 基于ChatGPT的自动驾驶技术解决方案
  6. Cadence 发布面向 TSMC 3nm 工艺的 112G-ELR SerDes IP 展示

技术资料推荐更多

  1. CC2500点对多点无线通信系统设计
  2. OTDR概述原理、分析
  3. 单片机系统软件抗干扰在通信电源中的应用
  4. 集成逻辑部件
  5. 有线电视HFC网络技术
  6. 合肥市大建设道路配套电力土建工程施与管理办法（试行）
  7. ug6.0安装方法_ug6.0 win7安装方法_ug6.0安装教程
  8. 汇编语言和C语言的外部中断
  9. beautiful code中文版
  10. 某无人机导航控制系统模块化设计

随便看看

  1. 添加API的Lib后报错
  2. 中断现场保护与返回
  3. TI C2000 MCU Boot过程分析-以TMS320F28069为例
  4. MCS51系列学习
  5. vxworks支持的网络协议
  6. 有关430电压兼容问题
  7. freescale单片机怎么与并口的lcd连接，怎么编程
  8. 请问下边这段代码中DEFUN宏这样定义的作用？
  9. 无线充电 | 无线充电技术原理/应用全解！
  10. 为什么要选择无线HiFi系统？

 
EEWorld订阅号

 
EEWorld服务号

 
汽车开发圈

 
机器人开发圈

About Us 关于我们 客户服务 联系方式 器件索引 网站地图 最新更新 手机版

站点相关： 大学堂 TI培训 Datasheet 电子工程 索引文件: 2840  2723  782  1714  657  58  55  16  35  14 

器件索引   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

北京市海淀区中关村大街18号B座15层1530室 电话:(010)82350740 邮编：100190

电子工程世界版权所有 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号 Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved