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AC/DC & DC/DC converters (integrated FET)

LM73605-Q1

現行

通過車用認證的 3.5V 至 36V、5A 同步降壓式電壓轉換器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的產品不同
LM61460-Q1 現行 車用 3V 至 36V、6A、低雜訊同步降壓轉換器 Smaller package, higher performance
最新 LM63460-Q1 現行 採用強化式 QFN 封裝的車用 3-V 至 36-V、6-A、低 EMI 同步降壓轉換器 Smaller solution size, higher efficiency at light load, lower EMI with HotRod™ QFN packaging and spread spectrum.

LM73605-Q1

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 5 Vin (min) (V) 3.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 350 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015
Iout (max) (A) 5 Vin (min) (V) 3.5 Vin (max) (V) 36 Topology Buck Type Converter Switching frequency (min) (kHz) 350 Switching frequency (max) (kHz) 2200 Features Enable, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 34 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015
WQFN (RNP) 30 24 mm² 6 x 4
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2 kV
    • Device CDM ESD classification level C5
  • Wettable flanks QFN package (WQFN)
  • Low EMI and low switching noise
  • 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)
  • Adjustable frequency range: 350 kHz to 2.2 MHz
  • Pin-selectable auto mode or forced PWM mode
  • Start-up into pre-biased load, fixed or adjustable soft-start time, and tracking
  • Synchronizable to external clock, internal compensation, power-good flag, and precision enable
  • Cycle-by-cycle current limiting, hiccup, UVLO, and thermal shutdown protections
  • Create a custom design with the WEBENCH power designer using LM73605-Q1 or LM73606-Q1
  • AEC-Q100-qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2 kV
    • Device CDM ESD classification level C5
  • Wettable flanks QFN package (WQFN)
  • Low EMI and low switching noise
  • 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)
  • Adjustable frequency range: 350 kHz to 2.2 MHz
  • Pin-selectable auto mode or forced PWM mode
  • Start-up into pre-biased load, fixed or adjustable soft-start time, and tracking
  • Synchronizable to external clock, internal compensation, power-good flag, and precision enable
  • Cycle-by-cycle current limiting, hiccup, UVLO, and thermal shutdown protections
  • Create a custom design with the WEBENCH power designer using LM73605-Q1 or LM73606-Q1

The LM73605-Q1/LM73606-Q1family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A (LM73605-Q1)or 6 A (LM73606-Q1) of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605-Q1/LM73606-Q1 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 and optional external bias improve efficiency over the entire load range. The family requires few external components and has a pinout designed for simple PCB layout with optimal EMI and thermal performance. Protection features include thermal shutdown, input undervoltage lookout, cycle-cy-cycle current limiting, and hiccup short-citcuit protection. The LM73605-Q1 and LM73606-Q1 devices are pin-to-pin compatible for easy current scaling.

The LM73605-Q1/LM73606-Q1family of devices are easy-to-use synchronous step-down DC/DC converters capable of driving up to 5 A (LM73605-Q1)or 6 A (LM73606-Q1) of load current from a supply voltage ranging from 3.5 V to 36 V. The LM73605-Q1/LM73606-Q1 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 and optional external bias improve efficiency over the entire load range. The family requires few external components and has a pinout designed for simple PCB layout with optimal EMI and thermal performance. Protection features include thermal shutdown, input undervoltage lookout, cycle-cy-cycle current limiting, and hiccup short-citcuit protection. The LM73605-Q1 and LM73606-Q1 devices are pin-to-pin compatible for easy current scaling.
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類型 標題 日期
* Data sheet LM7360x-Q1 3.5-V to 36-V, 5-A or 6-A Synchronous Step-Down Voltage Converter datasheet (Rev. B) PDF | HTML 2021年 5月 14日
Functional safety information LM73605-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2022年 7月 12日
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 2021年 7月 26日
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021年 4月 8日
Application note Designing High Performance, Low-EMI, Automotive Power Supplies 2017年 9月 30日
EVM User's guide LM73605/LM73606 EVM User's Guide 2017年 9月 20日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LM73605EVM-5V-2MHZ — LM73605 同步降壓轉換器評估模組

The LM73605EVM-5V-2MHZ evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM73605 synchronous step-down voltage converter. The EVM operates from 6V to 36V input and provides a 5V output voltage with 5A maximum load current.
使用指南: PDF
TI.com 無法提供
開發板

LM73605EVM-5V-400K — LM73605 同步降壓轉換器評估模組

The LM73605EVM-5V-400K evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM73605 synchronous step-down voltage converter. The EVM operates from 6V to 36V input and provides a 5V output voltage with 5A maximum load current.

使用指南: PDF
TI.com 無法提供
模擬型號

LM73605 Inverting and non-inverting PSpice Transient Model

SNVMBD7.ZIP (955 KB) - PSpice Model
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模擬型號

LM73605 TINA-TI Transient Reference Design

SNVMBE0.TSC (2316 KB) - TINA-TI Reference Design
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模擬型號

LM73605 TINA-TI Transient Spice Model

SNVMBE1.ZIP (79 KB) - TINA-TI Spice Model
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模擬型號

LM73605 Unencrypted PSpice Transient Model

SNVJ003.ZIP (9 KB) - Spice Model
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模擬型號

TINA-TI Enable Hysteresis Schematic

SNVMBL7.ZIP (4 KB) - TINA-TI Reference Design
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計算工具

SNVR524 — LM73605 Quickstart Tool

支援產品和硬體

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產品
AC/DC & DC/DC converters (integrated FET)
LM73605 — 3.5V 至 36V、5A 同步降壓電壓轉換器 LM73605-Q1 — 通過車用認證的 3.5V 至 36V、5A 同步降壓式電壓轉換器 LM73606 — 3.5V 至 36V、6A 同步降壓轉換器 LM73606-Q1 — 符合車用資格的 3.5-V 至 36-V、6-A 同步降壓式電壓轉換器
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Gerber 檔案

DC/DC Converter Enable Hysteresis Calculator

SNVC227.ZIP (40 KB)
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參考設計

TIDM-02009 — 經 ASIL D 安全概念評估的高速牽引、雙向 DC/DC 轉換參考設計

此參考設計展現如何以單一 TMS320F28388D 即時 C2000™ MCU 控制 HEV/EV 牽引變流器和雙向 DC-DC 轉換器。牽引控制運用軟體式解析器轉數位轉換器 (RDC) 將馬達驅動至高達 20,000 RPM 的高速。DC-DC 轉換器則採用尖峰電流模式控制 (PCMC) 技術，以及全橋相移式轉換器 (PSFB) 拓撲與同步整流 (SR) 機制。牽引變流器級使用由 UCC5870-Q1 智慧閘極驅動器驅動的碳化矽 (SiC) 功率級。PCMC 波形是使用最先進的 PWM 模組和比較器子系統 (CMPSS)中的內建傾斜補償產生。ASIL (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-050008 — 具改善電壓監控的 ADAS 電源參考設計

This automotive power reference design supports additional precision voltage supervision and window watchdog for safety MCUs in advanced driver assistance systems (ADAS). These ADAS systems can control driving functions, such as automated emergency brake, lane keep assist and adaptive cruise (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01492 — 整合電源前端和多相位處理器供電車用參考設計

This processor supply reference design is an automotive power solution for use in high performance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide (...)
Design guide: PDF
電路圖: PDF
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