LTC3615
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LTC3615

双通道、4MHz、3A、同步降压型 DC/DC 转换器

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LTspice LTC3615 Demo Circuit - Dual 3A Synchronous Step-down Regulator (1.25-5.5V to 1.8V @ 3A & 1.2V @ 3A) Download 3.00KB LTspice LTC3615 - Step-Down (Buck) Regulators Download 2.57 KB
产品模型 32
特性
  • 高效率：达 94%
  • 具 2 x 3A 输出电流能力的双路输出
  • 低输出纹波突发模式 (Burst Mode®) 操作：IQ = 130μA
  • 2.25V 至 5.5V 输入电压范围
  • ±1% 输出电压准确度
  • 输出电压低至 0.6V
  • 开关引脚上的可编程转换速率
  • 低压差操作：100% 占空比
  • 停机电流：≤1μA
  • 可调开关频率：高达 4MHz
  • 内部或外部补偿
  • 可选的脉冲跳跃 / 强制连续 / 具可调突发箝位的突发模式操作
  • 可任选的有源电压定位 (AVP) 和内部补偿
  • 通道之間的 0° / 90° / 180° (LTC3615) 或 140° / 180° 可選相移
  • 固定内部和可编程外部软起动
  • 准确的启动跟踪能力
  • DDR 存储模式的 IOUT = ±1.5A
  • 采用 4mm x 4mm QFN-24 封装和 TSSOP-24 封装

 

更多细节
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LTC®3615 / LTC3615-1 是一款双通道、3A、同步降压型稳压器，采用一种电流模式、恒定频率架构。DC 电源电流仅为 130μA (在无负载时执行突发模式操作)，并保持了输出电压，在停机模式中降至零电流。2.25V 至 5.5V 的输入电源范围使器件非常适合于单节锂离子电池应用。100% 占空比能力可提供低压差操作，从而延长了电池供电式系统中的工作时间。

该器件的工作频率可在外部设置至高达 4MHz，因而允许使用小的表面贴装型电感器。在两个通道之间可以选择 0°、90° 或 180° (LTC3615) 或 140° / 180° (LTC3615-1) 相移，以在双通道 3A 或单通道 6A 输出配置中较大限度地减小输入电流纹波和输出电压纹波。可编程转换速率限制功能降低了 EMI，而且可运用高达 4MHz 的外部同步。

内部同步开关提升了效率，并免除了增设外部箝位二极管的需要，从而节省了外部组件和板级空间。

LTC3615 / LTC3615-1 采用无引线 24 引脚 4mm x 4mm QFN 封装和耐热性能增强型 24 引脚 TSSOP 封装。

 


应用

  • 负载点电源
  • 分布式电源
  • 便携式计算机系统
  • DDR 存储终端
  • 手持式设备

 

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file 查看数据手册
Documentation 查看所有文档
LTspice LTC3615 Demo Circuit - Dual 3A Synchronous Step-down Regulator (1.25-5.5V to 1.8V @ 3A & 1.2V @ 3A) Download 3.00KB LTspice LTC3615 - Step-Down (Buck) Regulators Download 2.57 KB
产品模型 32
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更新 07/18/2013
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LTC3615: Dual 4MHz, 3A Synchronous Step-Down DC/DC Converter Data Sheet

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更新 10/02/2013
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LTC3615: デュアル4MHz、3A 同期整流式降圧DC/DC コンバータ データシート

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

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产品型号 引脚/封装图-中文版 文档 CAD 符号，脚注和 3D模型
LTC3615EFE#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615EFE#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615EFE-1#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615EFE-1#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615EUF#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615EUF#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615EUF-1#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615EUF-1#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615HFE#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615HFE#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615HFE-1#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615HFE-1#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615HUF#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615HUF#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615HUF-1#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615HUF-1#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615IFE#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615IFE#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615IFE-1#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615IFE-1#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615IUF#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615IUF#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615IUF-1#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615IUF-1#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615MPFE#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615MPFE#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615MPFE-1#PBF 24-Lead TSSOP w/ EP external-link
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LTC3615MPFE-1#TRPBF 24-Lead TSSOP w/ EP external-link
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LTC3615MPUF#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615MPUF#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615MPUF-1#PBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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LTC3615MPUF-1#TRPBF 24-Lead QFN (4mm x 4mm x 0.75mm w/ EP) external-link
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4月 6, 2022

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC3615EFE#PBF

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LTC3615EFE#TRPBF

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LTC3615EFE-1#PBF

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LTC3615EFE-1#TRPBF

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LTC3615HFE#PBF

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LTC3615HFE#TRPBF

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LTC3615HFE-1#PBF

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LTC3615HFE-1#TRPBF

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LTC3615IFE#PBF

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LTC3615IFE#TRPBF

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LTC3615IFE-1#PBF

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LTC3615IFE-1#TRPBF

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LTC3615MPFE#PBF

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LTC3615MPFE-1#PBF

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LTC3615MPFE-1#TRPBF

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pdf

PCN22_0068_Form

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xls

Material_Report

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xlsm

Delta Qualification Matrix

Download

6月 30, 2020

- 20_0244

Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3615EFE#PBF

量产

LTC3615EFE#TRPBF

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LTC3615EUF#PBF

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LTC3615EUF#TRPBF

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LTC3615HFE#PBF

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LTC3615HFE#TRPBF

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LTC3615HUF#PBF

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LTC3615HUF#TRPBF

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LTC3615IFE#PBF

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LTC3615IFE#TRPBF

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LTC3615IUF#PBF

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LTC3615IUF#TRPBF

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LTC3615MPFE#PBF

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LTC3615MPFE#TRPBF

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LTC3615MPUF#PBF

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LTC3615MPUF#TRPBF

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pdf

PCN20_0244_Form

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xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

pdf

Qualification Results Summary

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pdf

Other

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9月 2, 2021

- 21_0187

Test Platform Conversion for LTC3615 QFN

LTC3615EUF#PBF

量产

LTC3615EUF#TRPBF

量产

LTC3615EUF-1#PBF

量产

LTC3615EUF-1#TRPBF

量产

LTC3615IUF#PBF

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LTC3615IUF#TRPBF

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LTC3615IUF-1#PBF

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LTC3615IUF-1#TRPBF

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PCN21_0187_Form

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Material_Report

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Test Correlation Report

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PCN

4月 6, 2022

- 22_0068

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Laser Top Mark for ETSSOP and TSSOP Packages Assembled in ADPG [PNG] and UTL

LTC3615EFE#PBF

量产

LTC3615EFE#TRPBF

量产

LTC3615EFE-1#PBF

量产

LTC3615EFE-1#TRPBF

量产

LTC3615HFE#PBF

量产

LTC3615HFE#TRPBF

量产

LTC3615HFE-1#PBF

量产

LTC3615HFE-1#TRPBF

量产

LTC3615IFE#PBF

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LTC3615IFE#TRPBF

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LTC3615IFE-1#PBF

量产

LTC3615IFE-1#TRPBF

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LTC3615MPFE#PBF

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LTC3615MPFE#TRPBF

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LTC3615MPFE-1#PBF

量产

LTC3615MPFE-1#TRPBF

量产

pdf

PCN22_0068_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download
6月 30, 2020

- 20_0244

arrow down

Notification of Wafer Fab Location Change for 0.6µm CMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

LTC3615EFE#PBF

量产

LTC3615EFE#TRPBF

量产

LTC3615EUF#PBF

量产

LTC3615EUF#TRPBF

量产

LTC3615HFE#PBF

量产

LTC3615HFE#TRPBF

量产

LTC3615HUF#PBF

量产

LTC3615HUF#TRPBF

量产

LTC3615IFE#PBF

量产

LTC3615IFE#TRPBF

量产

LTC3615IUF#PBF

量产

LTC3615IUF#TRPBF

量产

LTC3615MPFE#PBF

量产

LTC3615MPFE#TRPBF

量产

LTC3615MPUF#PBF

量产

LTC3615MPUF#TRPBF

量产

pdf

PCN20_0244_Form

external-icon

xls

Material_Report

Download

xlsm

Delta Qualification Matrix

Download

pdf

Qualification Results Summary

external-icon

pdf

Other

external-icon
9月 2, 2021

- 21_0187

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Test Platform Conversion for LTC3615 QFN

LTC3615EUF#PBF

量产

LTC3615EUF#TRPBF

量产

LTC3615EUF-1#PBF

量产

LTC3615EUF-1#TRPBF

量产

LTC3615IUF#PBF

量产

LTC3615IUF#TRPBF

量产

LTC3615IUF-1#PBF

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LTC3615IUF-1#TRPBF

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pdf

PCN21_0187_Form

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xls

Material_Report

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Test Correlation Report
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评估套件

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DC1572A

LTC3615EFE Demo Board (TSSOP) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A

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DC1572A

LTC3615EFE Demo Board (TSSOP) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A

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DC1572A
LTC3615EFE Demo Board (TSSOP) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A
立即购买 更多内容

产品详情

Demonstration circuit 1572 is a dual output regulator consisting of two constant-frequency step-down converters, based on the LTC3615 dual channel monolithic synchronous buck regulator in the TSSOP exposed pad package. The DC1572 has an input voltage range of 2.25V to 5.5V, with each regulator capable of delivering up to 3A of output current.

资料

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DC1572A - Demo Manual Download

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DC1572A - Design Files Download

1.00M

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DC1572A - Schematic Download

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DC1435A

LTC3615EUF Demo Board (QFN) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A

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DC1435A

LTC3615EUF Demo Board (QFN) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A

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DC1435A
LTC3615EUF Demo Board (QFN) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A
立即购买 更多内容

产品详情

Demonstration circuit 1435 is a dual output regulator consisting of two constant-frequency step-down converters, based on the LTC3615 dual channel monolithic synchronous buck regulator in the 4mm × 4mm QFN-24 package. The DC1435 has an input voltage range of 2.25V to 5.5V, with each regulator capable of delivering up to 3A of output current. The DC1435 can operate in Burst Mode®, pulse-skip or forced continuous mode. In shutdown, the DC1435 requires less than 100 uA total. The DC1435 is a very efficient circuit: over 90% for either circuit. The LTC3615 comes in a 24 Pin QFN or leaded package, which each having an exposed pad on the bottom-side of the IC for better thermal performance.

资料

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PDF

DC1435A - Demo Manual Download

1.00M

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PDF

DC1435A - Schematic Download

45.00K

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ZIP

DC1435A - Design Files Download

1.00M

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评估套件2

evaluation kit item images

DC1572A

LTC3615EFE Demo Board (TSSOP) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A
evaluation kit item images

DC1435A

LTC3615EUF Demo Board (QFN) | 2.25V ≤ VIN ≤ 5.5V, VOUT1 = 1.8V to 3.3V @ 3A, VOUT2 = 1.2V to 1.8V @ 3A
工具和仿真

工具及仿真模型 2

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器，为改善模拟电路的仿真提供增强功能和模型。

启动此部分的现成LTspice演示电路：

第1步：下载并在计算机上安装LTspice。

第2步：单击下面的链接，下载演示电路。

第3步：如果在单击以下链接之后LTspice未自动打开，可通过右击该链接并选择“目标另存为”来运行该仿真。将文件保存到计算机之后，请启动LTspice并从“文件”菜单中选择“打开”来打开演示电路。

spice tool Lt Spice

LTC3615 Demo Circuit - Dual 3A Synchronous Step-down Regulator (1.25-5.5V to 1.8V @ 3A & 1.2V @ 3A) Download

3.00K

spice tool Lt Spice

LTC3615 - Step-Down (Buck) Regulators Download

2.57 K
参考电路

参考电路 1

Stratix V Advanced System Development Board

stratix-v-advanced-system-development-board

zoomopens a dialog

stratix-v-advanced-system-development-board

download icon

下载

 print icon

打印
stratix-v-advanced-system-development-board

参考设计

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特性和优点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
查看参考设计详情 external link

使用部分 11

LT3009 reference design link

LTC3115-1 reference design link

LT3083 reference design link

LTC3615 reference design link

LT3070 reference design link

LT3022 reference design link

LT3080 reference design link

LTM4628 reference design link

LTC3612 reference design link

LTC3855 reference design link

LTM4620 reference design link

参考电路1

Stratix V Advanced System Development Board

stratix-v-advanced-system-development-board

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