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DC/DC 轉換器

LMQ61460

現行

工業 3-V 至 36-V、6-V、低雜訊同步降壓轉換器

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產品規格表

LMQ61460

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, Spread Spectrum, Synchronous rectification, Tracking, UVLO adjustable, Wettable flanks package EMI & noise features Fixed-frequency control, Integrated capacitors, Low parasitic packaging, Mitigated interference & noise technology – architecture 2 (MINT 2), Pinout optimization, Switch-node waveshaping Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000007 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
Rating Catalog Topology Buck Iout (max) (A) 6 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 34 Vout (min) (V) 1 Features Enable, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Prebias startup, Spread Spectrum, Synchronous rectification, Tracking, UVLO adjustable, Wettable flanks package EMI & noise features Fixed-frequency control, Integrated capacitors, Low parasitic packaging, Mitigated interference & noise technology – architecture 2 (MINT 2), Pinout optimization, Switch-node waveshaping Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000007 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
VQFN-HR (RJR) 14 14 mm² (4 mm × 3.5 mm)
  • Functional Safety-Capable
  • Mitigated interference and noise technology – architecture 2 (MINT 2)
    • HotRod™ package minimizes switch node ringing
    • Internal bypass capacitors reduce EMI
    • Parallel input path minimizes parasitic inductance
    • Spread spectrum reduces peak emissions
    • Adjustable switch node rise time
  • Designed for rugged applications
    • Supports 42V transient
    • 0.4V dropout with 4A load (typical)
  • High efficiency power conversion at all loads
    • 7µA no load current at 13.5VIN, 3.3 VOUT
    • 90% PFM efficiency at 1mA, 13.5VIN, 5 VOUT
    • Low MOSFET ON resistance
      • RDS_ON_HS = 41mΩ (typical)
      • RDS_ON_LS = 21mΩ (typical)
  • External bias option for improved efficiency
  • Pin compatible with:
  • Use TPSM63606 module for faster time to market
  • Functional Safety-Capable
  • Mitigated interference and noise technology – architecture 2 (MINT 2)
    • HotRod™ package minimizes switch node ringing
    • Internal bypass capacitors reduce EMI
    • Parallel input path minimizes parasitic inductance
    • Spread spectrum reduces peak emissions
    • Adjustable switch node rise time
  • Designed for rugged applications
    • Supports 42V transient
    • 0.4V dropout with 4A load (typical)
  • High efficiency power conversion at all loads
    • 7µA no load current at 13.5VIN, 3.3 VOUT
    • 90% PFM efficiency at 1mA, 13.5VIN, 5 VOUT
    • Low MOSFET ON resistance
      • RDS_ON_HS = 41mΩ (typical)
      • RDS_ON_LS = 21mΩ (typical)
  • External bias option for improved efficiency
  • Pin compatible with:
  • Use TPSM63606 module for faster time to market

The LMQ61460 is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 6A of output current is delivered over a wide input range of 3.0V to 36V; tolerant of 42V, easing input surge protection design. The device implements soft recovery from dropout eliminating overshoot on the output.

The LMQ61460 is designed with mitigated interference and noise technology using architecture 2 features (MINT 2) to quickly and easily implement a low-EMI design. The device incorporates pseudo-random spread spectrum, integrated bypass capacitors, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be synchronized between 200kHz and 2.2MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller design size at high operating frequency.

Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, makes sure of exceptional efficiency across the entire load range.

The LMQ61460 is a high-performance, DC-DC synchronous buck converter with integrated bypass capacitors. With integrated high-side and low-side MOSFETs, up to 6A of output current is delivered over a wide input range of 3.0V to 36V; tolerant of 42V, easing input surge protection design. The device implements soft recovery from dropout eliminating overshoot on the output.

The LMQ61460 is designed with mitigated interference and noise technology using architecture 2 features (MINT 2) to quickly and easily implement a low-EMI design. The device incorporates pseudo-random spread spectrum, integrated bypass capacitors, adjustable SW node rise time, low-EMI VQFN-HR package featuring low switch node ringing, and optimized pinout for ease of use. The switching frequency can be synchronized between 200kHz and 2.2MHz to avoid noise sensitive frequency bands. In addition, the frequency can be selected for improved efficiency at low operating frequency or smaller design size at high operating frequency.

Auto mode enables frequency foldback when operating at light loads, allowing an unloaded current consumption of only 7µA (typical) and high light load efficiency. Seamless transition between PWM and PFM modes, along with very low MOSFET ON resistances and an external bias input, makes sure of exceptional efficiency across the entire load range.
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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 LMQ61460 3V to 36V, 6A , Synchronous Step-Down Converter With Mitigated Interference and Noise Technology (MINT) datasheet (Rev. F) PDF | HTML 2026/8/4
應用說明 How to Implement a Simple Constant Current Regulation Scheme to a PCM Based Buck PDF | HTML 2023/8/16
技術文章 How buck regulators with integrated capacitors help lower EMI and save board space PDF | HTML 2022/3/16
技術文章 Powering medical imaging applications with DC/DC buck converters PDF | HTML 2020/11/24
功能安全資訊 LMQ6x4x0-Q1 Functional Safety, FIT Rate, FMD, and Pin FMA (Rev. A) PDF | HTML 2020/9/9
證書 LMQ61460EVM-400K EU Declaration of Conformity (DoC) 2020/9/1

設計與開發

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開發板

LMQ61460EVM — 36-V、低 EMI 6-A、5-V 同步、400 kHz、降壓轉換器評估模組

LMQ61460EVM 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 LMQ61460-Q1 同步降壓轉換器。  LMQ61460-Q1 採用搭載整合式電容器的小型解決方案，從而提供絕佳效率、低 IQ 與低 EMI。
使用指南: PDF | HTML
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設計工具

SNVR488 — LMQ61460EVM-400K Design Files

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設計工具

SNVR493 — LMQ61460 Design Tool

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN-HR (RJR) 14 Ultra Librarian
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