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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM76003-Q1

現行

3.5V 至 60V 3.5A/2.5A 同步電壓穩壓器

立即訂購
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
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最新 LM65645-Q1 預覽 針對功率密度和低 EMI 最佳化的車用 3V 至 65V、4.5A 同步降壓轉換器 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 Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 3.5 Vin (max) (V) 60 Switching frequency (min) (kHz) 300 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) 57 Iq (typ) (µA) 15 Duty cycle (max) (%) 98
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3.5 Vin (min) (V) 3.5 Vin (max) (V) 60 Switching frequency (min) (kHz) 300 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) 57 Iq (typ) (µA) 15 Duty cycle (max) (%) 98
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
    • 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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技術文件

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類型 標題 日期
* Data sheet 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年 9月 5日
Application note Controller to Converter – Design Considerations for 24V and 48V Systems PDF | HTML 2024年 10月 2日
Technical article Using DC/DCs buck converters to power modern safety features in commercial vehicle PDF | HTML 2020年 7月 27日
Technical article How to meet European Commission ADAS requirements with TI DC/DC converters PDF | HTML 2019年 5月 9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

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

The LM76003EVM-500K evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LM76003 synchronous step-down converter. The EVM operates from an 3.5V to 60V input and provides a 3.3V or 5V output at 3.5A.
使用指南: PDF
TI.com 無法提供
模擬型號

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

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

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

SNVMBF3A.ZIP (9 KB) - PSpice 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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Gerber 檔案

DC/DC Converter Enable Hysteresis Calculator

SNVC227.ZIP (40 KB)
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RNP) 30 Ultra Librarian
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