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DC/DC 轉換器

LM5012

現行

具有超低 IQ 的 6-V 至 100-V 輸入、2.5-A 非同步降壓 DC/DC 轉換器

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產品規格表

LM5012

現行
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產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 100 Vin (min) (V) 6 Vout (max) (V) 95 Vout (min) (V) 1.2 Switch current limit (typ) (A) 2.5 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, UVLO adjustable Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000014 Duty cycle (max) (%) 97 TI functional safety category Functional Safety-Capable
Rating Catalog Topology Buck Iout (max) (A) 2.5 Vin (max) (V) 100 Vin (min) (V) 6 Vout (max) (V) 95 Vout (min) (V) 1.2 Switch current limit (typ) (A) 2.5 Features Enable, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, UVLO adjustable Control mode Constant on-time (COT) Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.000014 Duty cycle (max) (%) 97 TI functional safety category Functional Safety-Capable
HSOIC (DDA) 8 29.4 mm² (4.9 mm × 6 mm)
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6 V to 100 V
    • –40°C to +125°C junction temperature range
    • Fixed 3-ms internal soft-start timer
    • Peak current-limit protection
    • Input UVLO and thermal shutdown protection
  • Functional Safety-Capable
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 Class 5 standard
  • Suited for scalable industrial power supplies
    • Pin-to-pin compatible with the LM5163 and LM5164 (100 V, 0.5 A or 1 A), and LM5013-Q1 (100 V, 3.5A)
    • 50-ns low minimum on and off times
    • Diode emulation for high light-load efficiency
    • 10-µA no-load sleep current
    • 3.1-µA shutdown quiescent current
  • Integration reduces solution size and cost
    • COT mode control architecture
    • Integrated 100-V 0.25-Ω power MOSFET
    • 1.2-V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
  • Create a custom regulator design using WEBENCH Power Designer
  • Designed for reliable and rugged applications
    • Wide input voltage range of 6 V to 100 V
    • –40°C to +125°C junction temperature range
    • Fixed 3-ms internal soft-start timer
    • Peak current-limit protection
    • Input UVLO and thermal shutdown protection
  • Functional Safety-Capable
  • Optimized for ultra-low EMI requirements
    • Meets CISPR 25 Class 5 standard
  • Suited for scalable industrial power supplies
    • Pin-to-pin compatible with the LM5163 and LM5164 (100 V, 0.5 A or 1 A), and LM5013-Q1 (100 V, 3.5A)
    • 50-ns low minimum on and off times
    • Diode emulation for high light-load efficiency
    • 10-µA no-load sleep current
    • 3.1-µA shutdown quiescent current
  • Integration reduces solution size and cost
    • COT mode control architecture
    • Integrated 100-V 0.25-Ω power MOSFET
    • 1.2-V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
  • Create a custom regulator design using WEBENCH Power Designer

The LM5012 non-synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5012 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance industrial applications.

With integrated high-side power MOSFET, the LM5012 delivers up to 2.5 A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5012 include ultra-low IQ and a innovative peak overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5012 is available in a 8-pin SO PowerPAD™ integrated circuit package. The device 1.27-mm pin pitch provides adequate spacing for high-voltage applications.

The LM5012 non-synchronous buck converter is designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM5012 operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for high-performance industrial applications.

With integrated high-side power MOSFET, the LM5012 delivers up to 2.5 A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. Additional features of the LM5012 include ultra-low IQ and a innovative peak overcurrent protection, integrated VCC bias supply and bootstrap diode, precision enable and input UVLO, and thermal shutdown protection with automatic recovery. An open-drain PGOOD indicator provides sequencing, fault reporting, and output voltage monitoring.

The LM5012 is available in a 8-pin SO PowerPAD™ integrated circuit package. The device 1.27-mm pin pitch provides adequate spacing for high-voltage applications.
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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 LM5012 100-V Input, 2.5-A Non-Synchronous Buck DC/DC Converter With Ultra-low IQ datasheet PDF | HTML 2022/10/12
應用說明 Power Supply Designs for eBike That Meet the New GB42295 National Standard 2025/7/10
應用說明 Optimizing Line and Load Regulation in Automotive, 48-V Battery and eBike Apps PDF | HTML 2023/3/16
功能安全資訊 LM5012 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2022/9/16

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LM5013-Q1EVM — LM5013-Q1 評估模組，100-V 輸入、3.5-A 非同步降壓 dc/dc 轉換器

LM5013-Q1EVM 評估模組 (EVM) 採用非同整流的 100-V DC/DC 降壓穩壓器，可在較小型元件封裝中實現高轉換效率。EVM 可在 15 V 至 100 V 的寬輸入電壓範圍內運作，以 300-kHz 切換頻率提供穩壓 12-V 輸出。此模組設計採用 LM5013-Q1 非同步降壓轉換器，具備廣泛輸入電壓範圍 (廣泛 VIN)、廣泛工作週期範圍、整合式高壓側電源 MOSFET、週期性過電流防護與精密啟用。LM5013-Q1 通過 AEC-Q100 第 1 級汽車認證，可在 –40°C 至 150°C 的接點溫度範圍內運作。 LM5013-Q1 採用 8 接腳 SO (...)
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