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LM73606

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3.5V 至 36V、6A 同步降压转换器

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open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同。
LM61460 正在供货 3V 至 36V、6A、低 EMI 同步降压转换器 Smaller solution size, higher efficiency and lower EMI.

产品详情

Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 34 Vout (min) (V) 1 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, Wettable flanks package Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 95
Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 36 Vin (min) (V) 3.5 Vout (max) (V) 34 Vout (min) (V) 1 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, UVLO Fixed, Wettable flanks package Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 95
WQFN (RNP) 30 24 mm² (6 mm × 4 mm)
  • New product available: LM61460 60-V, 6-A synchronous converter
  • Synchronous rectification
  • Wettable flanks QFN package (WQFN)
  • Low quiescent current
    • 0.8 µA in shutdown (typical)
    • 15 µA in active mode with no load (typical)
  • Wide voltage conversion range:
    • tON-MIN = 60 ns (typical)
    • tOFF-MIN = 70 ns (typical)
  • Low MOSFET ON-resistance:
    • RDS_ON_HS = 53 mΩ (typical)
    • RDS_ON_LS = 31 mΩ (typical)
  • External bias input to improve efficiency
  • Pin-selectable auto mode or forced PWM operation
  • Adjustable frequency range: 350 kHz to 2.2 MHz
  • Synchronizable to external clock
  • Internal compensation
  • Power-good flag
  • Precision enable to program system UVLO
  • Flexible soft-start features:
    • Start-up into pre-biased load
    • Fixed or adjustable soft-start time
    • Output voltage tracking
  • Cycle-by-cycle current limiting
  • Short-circuit protection with hiccup mode
  • Create a custom design with the WEBENCH® power designer using LM73605 or LM73606
  • New product available: LM61460 60-V, 6-A synchronous converter
  • Synchronous rectification
  • Wettable flanks QFN package (WQFN)
  • Low quiescent current
    • 0.8 µA in shutdown (typical)
    • 15 µA in active mode with no load (typical)
  • Wide voltage conversion range:
    • tON-MIN = 60 ns (typical)
    • tOFF-MIN = 70 ns (typical)
  • Low MOSFET ON-resistance:
    • RDS_ON_HS = 53 mΩ (typical)
    • RDS_ON_LS = 31 mΩ (typical)
  • External bias input to improve efficiency
  • Pin-selectable auto mode or forced PWM operation
  • Adjustable frequency range: 350 kHz to 2.2 MHz
  • Synchronizable to external clock
  • Internal compensation
  • Power-good flag
  • Precision enable to program system UVLO
  • Flexible soft-start features:
    • Start-up into pre-biased load
    • Fixed or adjustable soft-start time
    • Output voltage tracking
  • Cycle-by-cycle current limiting
  • Short-circuit protection with hiccup mode
  • Create a custom design with the WEBENCH® power designer using LM73605 or LM73606

The LM73605 and LM73606 family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A or 6 A of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605 and LM73606 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization to an external clock, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency over the entire load range. Protection features include thermal shutdown, cycle-by-cycle current limiting, and short-circuit protection. The devices are pin-to-pin compatible for easy current scaling. The new product, LM61460-Q1, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare specifications. Start a Webench design with LM61460-Q1. Use the LMZM33606 module for faster time to market.

The LM73605 and LM73606 family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A or 6 A of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605 and LM73606 provide exceptional efficiency and output accuracy in a very small solution size. Peak current-mode control is employed. Additional features such as adjustable switching frequency, synchronization to an external clock, power-good flag, precision enable, adjustable soft start, and tracking provide both flexible and easy-to-use solutions for a wide range of applications. Automatic frequency foldback at light load improves efficiency over the entire load range. Protection features include thermal shutdown, cycle-by-cycle current limiting, and short-circuit protection. The devices are pin-to-pin compatible for easy current scaling. The new product, LM61460-Q1, offers higher efficiency, lower stand-by quiescent current, and improved EMI performance. See the device comparison table to compare specifications. Start a Webench design with LM61460-Q1. Use the LMZM33606 module for faster time to market.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LM73605/LM73606 3.5-V to 36-V, 5-A or 6-A Synchronous Step-Down Voltage Converter 数据表 (Rev. A) PDF | HTML 2017-7-21
功能安全信息 LM73606 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2022-7-12
选择指南 Buck Converter Quick Reference Guide (Rev. B) 2021-4-8
测试报告 Automotive Wide-VIN to Point-of-Load Power Supply Reference Design (Rev. A) 2020-3-26
白皮书 Power modules for lab instrumentation 2018-10-18

设计与开发

如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。

评估板

LM73606EVM-5V-400K — LM73606 同步降压转换器评估模块

LM73606EVM-5V-400K 评估模块 (EVM) 是一个经全面封装测试的电路,用于评估 LM73606 同步降压转换器。此 EVM 在 6V 至 36V 输入电压范围内运行,且可在高达 6A 的负载电流下提供 5V 的输出电压。

用户指南: PDF
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仿真模型

LM73606 Non-Inverting and Inverting PSpice Transient Model

SNVMBE5.ZIP (240 KB) - PSpice 模型
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仿真模型

LM73606 Unencrypted Non-Inverting and Inverting PSpice Transient Model

SNVMBE4.ZIP (8 KB) - PSpice 模型
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仿真模型

TINA-TI Enable Hysteresis Schematic

SNVMBL7.ZIP (4 KB) - TINA-TI 参考设计
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计算工具

SNVR524 — LM73605 Quickstart Tool

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参考设计

PMP15023 — 具有前端电路保护功能的汽车类宽 VIN 至负载点电源参考设计

该汽车负载点电源参考设计具有全面的前端保护,且总体尺寸小巧。该系统可以钳制快速高压电瞬态并通过这些事件保持运行。它还可以正确响应反向电池极性事件并正确关断。这种三输出设计采用两个降压稳压器排序,以确保适当的供电和断电时序,并具有输入 π 型滤波器,以减少传导 EMI。此设计接受 5V 至 36V 的输入电压,并提供 3.3V、1.2V 和 1.8V 的输出。该电源可在 1.8V 和 1.2V 输出上提供 2A 电流,在 3.3V 输出上同步提供 3.55A 电流。

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参考设计

PMP40285 — 汽车类双端口 USB Type-C™ DFP 5V 3A 充电器参考设计

PMP40285 是一种双端口 USB Type-C™ 充电器参考设计。此设计采用汽车输入电压,并输出到两个 USB Type-C 端口。每个端口都为 USB Type-C™ 器件提供 5V 3A 电流。该设计完全兼容 USB Type C,并向后兼容 BC1.2 和 DCP 配置。此设计通过单芯片解决方案实现双 USB Type-C DFP 输出并采用较少元件,因此具有成本效益。
支持的产品和硬件
参考设计

PMP40286 — 汽车类 USB Type-C™ DFP 5V 3A + USB Type-A 5V 2.4A 充电器参考设计

PMP40286 是一种双端口车载充电器参考设计。  该参考设计输出到 5V 3A USB Type-C™ 端口和 5V 2.4A USB Type-A 端口。USB Type-C 端口可向后兼容 BC1.2 和 DCP 配置。Type-A 端口能够在使用长电缆将智能手机或平板电脑连接到 USB 充电器时补偿对电压降的影响。在 12V 输入下采用 USB 开关后,解决方案效率高于 91%。
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参考设计

TIDA-010011 — 适用于保护继电器处理器模块的高效电源架构参考设计

该参考设计展示了各种电源架构,这些架构可为需要 >1A 负载电流和高效率的应用处理器模块生成多个电压轨。所需的电源通过来自背板的 5V、12V 或 24V 直流输入生成。电源通过带集成 FET 的直流/直流转换器生成并且使用带集成电感器的电源模块以减小尺寸。此设计采用 HotRod™ 封装类型,适用于需要低 EMI 的应用,也非常适合设计时间受限的应用。其他功能包括 DDR 端接稳压器、输入电源 OR-ing、电压时序控制、过载保护电子保险丝以及电压和负载电流监控。该设计可以用于处理器、数字信号处理器和现场可编程门阵列。该设计已依照 CISPR22 标准针对辐射发射进行了测试,符合 A (...)
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封装 引脚 CAD 符号、封装和 3D 模型
WQFN (RNP) 30 Ultra Librarian

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