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DC/DC 轉換器

LM5010A-Q1

現行

汽車級 0 和 1，6-75V 大範圍 Vin、1A 恒定導通時間非同步降壓穩壓器

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open-in-new 比較替代產品
功能相同，但針腳輸出與所比較的裝置不同。
LMR38010-Q1 現行 車用 SIMPLE SWITCHER® 4.2V 至 80V、1A 同步降壓轉換器 Smaller footprint, lower EMI, lower IQ, higher efficiency and spread spectrum.

LM5010A-Q1

現行
立即訂購

產品詳細資料

Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 75 Vin (min) (V) 6 Vout (max) (V) 70 Vout (min) (V) 2.5 Features Enable, Over Current Protection, Soft Start Adjustable Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00065 Duty cycle (max) (%) 99
Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 75 Vin (min) (V) 6 Vout (max) (V) 70 Vout (min) (V) 2.5 Features Enable, Over Current Protection, Soft Start Adjustable Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00065 Duty cycle (max) (%) 99
HTSSOP (PWP) 14 32 mm² (5 mm × 6.4 mm)
  • LM5010A-Q1 Qualified for Automotive
    Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device Temperature Grade 0: –40°C to 150°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Wide 6-V to 75-V Input Voltage Range
  • Valley Current Limit at 1.25 A
  • Programmable Switching Frequency Up To 1 MHz
  • Integrated 80-V N-Channel Buck Switch
  • Integrated High Voltage Bias Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency With Line
    and Load Variations
  • Adjustable Output Voltage
  • 2.5-V, ±2% Feedback Reference
  • Programmable Soft-Start
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat
    Dissipation
  • LM5010A-Q1 Qualified for Automotive
    Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device Temperature Grade 0: –40°C to 150°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C5
  • Wide 6-V to 75-V Input Voltage Range
  • Valley Current Limit at 1.25 A
  • Programmable Switching Frequency Up To 1 MHz
  • Integrated 80-V N-Channel Buck Switch
  • Integrated High Voltage Bias Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency With Line
    and Load Variations
  • Adjustable Output Voltage
  • 2.5-V, ±2% Feedback Reference
  • Programmable Soft-Start
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat
    Dissipation

The LM5010Ax step-down switching regulator is an enhanced version of the LM5010 with the input operating range extended to 6-V minimum. The LM5010Ax features all the functions needed to implement a low-cost, efficient, buck regulator capable of supplying in excess of 1-A load current. This high-voltage regulator integrates an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The constant ON-time regulation scheme requires no loop compensation resulting in fast load transient response and simplified circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the ON-time. The valley current limit detection is set at 1.25 A. Additional features include: VCC undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter.

The LM5010Ax step-down switching regulator is an enhanced version of the LM5010 with the input operating range extended to 6-V minimum. The LM5010Ax features all the functions needed to implement a low-cost, efficient, buck regulator capable of supplying in excess of 1-A load current. This high-voltage regulator integrates an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The constant ON-time regulation scheme requires no loop compensation resulting in fast load transient response and simplified circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the ON-time. The valley current limit detection is set at 1.25 A. Additional features include: VCC undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter.
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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 LM5010A, LM5010A-Q1 High-Voltage 1-A Step-Down Switching Regulator datasheet (Rev. F) PDF | HTML 2016/5/24

設計與開發

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開發板

LM5010AEVAL — 寬輸入電壓 1A 降壓切換穩壓器評估模組

LM5010A High Voltage 1A Step Down Switching Regulator

使用指南: PDF
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模擬型號

LM5010A PSpice Transient Model

SNVM493.ZIP (39 KB) - PSpice 模型
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模擬型號

LM5010A Unencrypted PSpice Transient Model

SNVM976.ZIP (4 KB) - PSpice 模型
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計算工具

LM5010AQUICK-CALC — LM5010A 快速入門計算機

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參考設計

TIDA-01168 — 適用於 12-V/48-V 車用系統的雙向 DC/DC 轉換器參考設計

TIDA-01168 參考設計為一適用 12V/48V 汽車系統的四相雙向 DC-DC 轉換器開發平台。系統使用兩個 LM5170-Q1 電流控制器和一個 TMS320F28027F 微控制器 (MCU) 進行功率級控制。LM5170-Q1 子系統使用平均電流回饋進行電流控制，而 C2000™ 微控制器則提供電壓回饋。  這種控制方案可消除多相轉換器常見的相位電流平衡。以 LM5170-Q1 為基礎的系統可實現高度整合，可縮減印刷電路板 (PCB) 面積，簡化設計並加速開發。
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