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DC/DC 轉換器

LM76003-Q1

現行

3.5V 至 60V 3.5A/2.5A 同步電壓穩壓器

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open-in-new 比較替代產品
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LM65635-Q1 現行 針對功率密度和低 EMI 最佳化的車用 3.5A、3V 至 65V 降壓轉換器 Better efficiency and smaller solution size
LM65645-Q1 現行 針對功率密度和低 EMI 最佳化的車用 4.5V、3V 至 65V 降壓轉換器 Higher efficiency, lower IQ and improved EMI mitigation features

LM76003-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 3.5 Vin (max) (V) 60 Vin (min) (V) 3.5 Vout (max) (V) 57 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, Wettable flanks package Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 98
Rating Automotive Topology Buck Iout (max) (A) 3.5 Vin (max) (V) 60 Vin (min) (V) 3.5 Vout (max) (V) 57 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, Wettable flanks package Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000015 Duty cycle (max) (%) 98
WQFN (RNP) 30 24 mm² (6 mm × 4 mm)
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Integrated synchronous rectification
  • Input voltage 3.5 V to 60 V (65 V maximum)
  • Output voltage 1 V to 95% VIN
  • 15-µA Quiescent current in regulation
  • Wide voltage conversion range
    • tON-MIN = 65 ns (typical)
    • tOFF-MIN = 95 ns (typical)
  • System-level features
    • Synchronization to external clock
    • Power-good flag
    • Adjustable soft-start (6.3 ms default)
  • Pin-selectable FPWM operation
  • Adjustable frequency range: 300 kHz to 2.2 MHz
  • High-efficiency at light-load architecture (PFM)
  • Protection features
    • Cycle-by-cycle current limit
    • Short-circuit protection with hiccup mode
    • Overtemperature thermal shutdown protection
  • Create a custom design using the LM76002-Q1η/LM76003-Q1 with the WEBENCH® Power Designer
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Integrated synchronous rectification
  • Input voltage 3.5 V to 60 V (65 V maximum)
  • Output voltage 1 V to 95% VIN
  • 15-µA Quiescent current in regulation
  • Wide voltage conversion range
    • tON-MIN = 65 ns (typical)
    • tOFF-MIN = 95 ns (typical)
  • System-level features
    • Synchronization to external clock
    • Power-good flag
    • Adjustable soft-start (6.3 ms default)
  • Pin-selectable FPWM operation
  • Adjustable frequency range: 300 kHz to 2.2 MHz
  • High-efficiency at light-load architecture (PFM)
  • Protection features
    • Cycle-by-cycle current limit
    • Short-circuit protection with hiccup mode
    • Overtemperature thermal shutdown protection
  • Create a custom design using the LM76002-Q1η/LM76003-Q1 with the WEBENCH® Power Designer

The LM76002-Q1/LM76003-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2.5 A (LM76002-Q1) or 3.5 A (LM76003-Q1) of load current from an input up to 60 V. The LM76002-Q1/LM76003-Q1 provides 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, FPWM option, 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. This device requires few external components and has a pinout designed for simple PCB layout with best-in-class EMI (CISPR25) and thermal performance. Protection features include input undervoltage lockout, thermal shutdown, cycle-by-cycle current limit, and short-circuit protection. The LM76002-Q1/LM76003-Q1 device is available in the WQFN 30-pin leadless package with wettable flanks.

The LM76002-Q1/LM76003-Q1 regulator is an easy-to-use synchronous step-down DC-DC converter capable of driving up to 2.5 A (LM76002-Q1) or 3.5 A (LM76003-Q1) of load current from an input up to 60 V. The LM76002-Q1/LM76003-Q1 provides 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, FPWM option, 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. This device requires few external components and has a pinout designed for simple PCB layout with best-in-class EMI (CISPR25) and thermal performance. Protection features include input undervoltage lockout, thermal shutdown, cycle-by-cycle current limit, and short-circuit protection. The LM76002-Q1/LM76003-Q1 device is available in the WQFN 30-pin leadless package with wettable flanks.
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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 LM7600x-Q1 3.5-V to 60-V, 2.5-A/3.5-A Synchronous Step-Down Voltage Regulator datasheet (Rev. B) PDF | HTML 2019/9/5
應用說明 Controller to Converter – Design Considerations for 24V and 48V Systems PDF | HTML 2024/10/2
技術文章 Using DC/DCs buck converters to power modern safety features in commercial vehicle PDF | HTML 2020/7/27
技術文章 How to meet European Commission ADAS requirements with TI DC/DC converters PDF | HTML 2019/5/9

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開發板

LM76003EVM-500K — LM76003 3.5V 至 60V、3.5A 同步降壓轉換器評估模組

LM76003EVM-500K 評估模組 (EVM) 是完全組裝且經過測試的電路，用於評估 LM76003 同步降壓轉換器。此 EVM 可在 3.5V 至 60V 輸入之間運作，並在 3.5A 時提供 3.3V 或 5V 輸出。
使用指南: PDF
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模擬型號

LM76003 Non-Inverting and Inverting PSpice Transient Model (Rev. A)

SNVMBE9A.ZIP (297 KB) - PSpice 模型
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模擬型號

TINA-TI Enable Hysteresis Schematic

SNVMBL7.ZIP (4 KB) - TINA-TI 參考設計
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WQFN (RNP) 30 Ultra Librarian
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