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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LM5010

現行

8-75V 大範圍 Vin、1A 恒定導通時間非同步降壓穩壓器

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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
功能相同，但引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.

LM5010

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 8 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 70 Iq (typ) (µA) 650 Duty cycle (max) (%) 99
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 8 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 1000 Features Enable, Over Current Protection Control mode Constant on-time (COT) Vout (min) (V) 2.5 Vout (max) (V) 70 Iq (typ) (µA) 650 Duty cycle (max) (%) 99
HTSSOP (PWP) 14 32 mm² 5 x 6.4 WSON (DPR) 10 16 mm² 4 x 4
  • Input Voltage Range: 8 V to 75 V
  • Valley Current Limit At 1.25 A
  • Switching Frequency Can Exceed 1 MHz
  • Integrated N-Channel Buck Switch
  • Integrated Start-Up Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant With
    Load and Line Variations
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable Output Voltage
  • Precision 2.5-V Feedback Reference
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat
    Dissipation
  • Input Voltage Range: 8 V to 75 V
  • Valley Current Limit At 1.25 A
  • Switching Frequency Can Exceed 1 MHz
  • Integrated N-Channel Buck Switch
  • Integrated Start-Up Regulator
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Operating Frequency Remains Constant With
    Load and Line Variations
  • Maximum Duty Cycle Limited During Start-Up
  • Adjustable Output Voltage
  • Precision 2.5-V Feedback Reference
  • Thermal Shutdown
  • Exposed Thermal Pad for Improved Heat
    Dissipation

The LM5010 step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying in excess of 1-A load current. This high-voltage regulator contains an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The hysteretic regulation scheme requires no loop compensation, resulting in fast load transient response, and simplifies 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 LM5010 step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying in excess of 1-A load current. This high-voltage regulator contains an N-Channel Buck Switch, and is available in thermally enhanced 10-pin WSON and 14-pin HTSSOP packages. The hysteretic regulation scheme requires no loop compensation, resulting in fast load transient response, and simplifies 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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類型 標題 日期
* Data sheet LM5010 High-Voltage 1-A Step-Down Switching Regulator datasheet (Rev. G) PDF | HTML 2016年 4月 27日
EVM User's guide AN-1352 LM5010 Evaluation Board (Rev. A) 2013年 4月 30日
EVM User's guide AN-1423 LM5010A Evaluation Board (Rev. A) 2013年 4月 30日
Application note Controlling Output Ripple & Achiev ESR Indep Constant On-Time Reg Designs (Rev. A) 2013年 4月 23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

LM5010-EVAL — 寬輸入電壓 1A 降壓切換穩壓器評估模組

LM5010 High Voltage 1A Step Down Switching Regulator

使用指南: PDF
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開發板

TAS3251EVM — TAS3251 175W 立體聲道 / 350W 單聲道 Ultra-HD 數位輸入 D 類評估模組

The TAS3251 Ultra-HD audio evaluation module demonstrates the TAS3251 integrated circuit from Texas Instruments. TAS3251 is a digital-input, high-performance Class-D audio amplifier that enables true premium sound quality with Class-D efficiency. The digital front-end features a high-performance (...)

使用指南: PDF
TI.com 無法提供
開發板

TPA3244EVM — TPA3244 60W 立體聲道 / 110W 峰值 Ultra-HD 類比輸入音訊 D 類模組 (焊盤朝下)

The TPA3244EVM Ultra-HD evaluation module demonstrates the TPA3244DDW integrated circuit from Texas Instruments. The TPA3244DDW is a high-performance class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advanced integrated feedback (...)
使用指南: PDF
TI.com 無法提供
開發板

TPA3245EVM — TPA3245 115W 立體聲道 / 230W 單聲道 Ultra-HD 類比輸入音訊 D 類模組

The TPA3245EVM Ultra-HD evaluation module demonstrates the TPA3245DDV integrated circuit from Texas Instruments. The TPA3245DDV is a high-performance class-D amplifier that enables true premium sound quality with high efficiency class-D technology. It features an advanced integrated feedback (...)
使用指南: PDF
TI.com 無法提供
模擬型號

LM5010A PSpice Transient Model

SNVM493.ZIP (39 KB) - PSpice Model
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模擬型號

LM5010A Unencrypted PSpice Transient Model

SNVM976.ZIP (4 KB) - PSpice Model
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計算工具

LM5010QUICK-CALC — LM5010 快速入門計算機

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參考設計

PMP10812 — 2 類非隔離式 PoE 同步降壓轉換器 (5V/1A) 參考設計

The PMP10812 reference design is ideal for Class 2 PoE PD applications that do not require isolation.  The TPS2378 PD controller provides the interface to the PSE.  The LM5010 buck converter has an integrated high side FET and external low side diode rectifier for low cost.
Test report: PDF
電路圖: PDF
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 14 Ultra Librarian
WSON (DPR) 10 Ultra Librarian
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