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DC/DC 轉換器

LM5010A

現行

6-75V 大範圍 Vin、1A 恒定導通時間非同步降壓穩壓器

立即訂購
產品規格表

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功能相同，但針腳輸出與所比較的裝置不同。
TPSM365R6 現行 3-V 至 65-V 輸入、1-V 至 13-V 輸出、0.6-A 同步降壓轉換器電源模組 Smaller design with an integrated-inductor power module.

LM5010A

現行
立即訂購

產品詳細資料

Rating Catalog 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 Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00065 Duty cycle (max) (%) 99
Rating Catalog 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 Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00065 Duty cycle (max) (%) 99
WSON (DPR) 10 16 mm² (4 mm × 4 mm) 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-00874 — 具數位輸入和處理能力的高傳真 175W D 類音訊放大器參考設計

此設計將性能極高的類比輸入 TPA3251 D 類放大器轉換為數位輸入系統，並使用功能多元的 PCM5242 差動輸出 DAC 進行音訊處理。現在，透過各種數位輸入來源，可以充分發揮 TPA3251 放大器的全部性能。PCM5242 DAC 的類比差動輸出和高 SNR 與 TPA3251 放大器的全差動類比輸入完美匹配，實現了出色的雜訊性能和極低的失真。PCM5242 上的 miniDSP 可添加音訊處理和濾波功能，從而進一步增強終端設備的音訊性能。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WSON (DPR) 10 Ultra Librarian
HTSSOP (PWP) 14 Ultra Librarian
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