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LMR51635

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具有 4.3V 至 60V、3.5A、和低靜態電流的 SIMPLE SWITCHER® 同步降壓轉換器

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LMR51635

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產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter (Integrated Switch) Iout (max) (A) 3.5 Vin (min) (V) 4.3 Vin (max) (V) 60 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1100 Features Enable, Forced PWM, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 30 Iq (typ) (µA) 26
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter (Integrated Switch) Iout (max) (A) 3.5 Vin (min) (V) 4.3 Vin (max) (V) 60 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1100 Features Enable, Forced PWM, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 30 Iq (typ) (µA) 26
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Configured for rugged industrial applications:
    • 4.3V to 60V input voltage range
    • 3.5A continuous output current
    • 75ns minimum switching on time
    • 400kHz switching frequency
    • Frequency spread spectrum (PFM variant)
    • –40°C to 150°C junction temperature range
    • 96% maximum duty cycle
    • Monotonic start-up with prebiased output
    • Short-circuit protection with hiccup mode
    • Precision enable
    • ±1% tolerance voltage reference at room temperature
  • Small design size and ease of use:
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23 package

  • Create a custom design using the LMR51635 with the with the WEBENCH Power Designer
  • Configured for rugged industrial applications:
    • 4.3V to 60V input voltage range
    • 3.5A continuous output current
    • 75ns minimum switching on time
    • 400kHz switching frequency
    • Frequency spread spectrum (PFM variant)
    • –40°C to 150°C junction temperature range
    • 96% maximum duty cycle
    • Monotonic start-up with prebiased output
    • Short-circuit protection with hiccup mode
    • Precision enable
    • ±1% tolerance voltage reference at room temperature
  • Small design size and ease of use:
    • Integrated synchronous rectification
    • Internal compensation for ease of use
    • SOT-23 package

  • Create a custom design using the LMR51635 with the with the WEBENCH Power Designer

The LMR51635 is a wide-VIN, easy-to-use, synchronous buck converter capable of driving up to 3.5A load current. With a wide input range of 4.3V to 60V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR51635 operates at 400kHz switching frequency to support use of relatively small inductors for an optimized design size. The device has pulse frequency modulation (PFM version) to realize high efficiency at light load. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.

The LMR51635 is a wide-VIN, easy-to-use, synchronous buck converter capable of driving up to 3.5A load current. With a wide input range of 4.3V to 60V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.

The LMR51635 operates at 400kHz switching frequency to support use of relatively small inductors for an optimized design size. The device has pulse frequency modulation (PFM version) to realize high efficiency at light load. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.

The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.
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類型 標題 日期
* Data sheet LMR51635 4.3V to 60V, 3.5A, Synchronous Buck Converter in a SOT-23 Package datasheet PDF | HTML 2024年 8月 21日
Functional safety information LMR51625 and LMR51635 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2024年 10月 15日
EVM User's guide LMR51635 Buck Evaluation Module PDF | HTML 2024年 8月 13日

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開發板

LMR51635EVM — LMR51635 評估模組

德州儀器 LMR51635EVM 評估模組 (EVM) 可協助設計師評估 LMR51635 廣泛輸入同步降壓穩壓器的運作及性能。LMR51635 是廣泛 VIN、易於使用的同步降壓轉換器。裝置具備 4.3V 至 60V 的廣泛操作輸入電壓範圍，專為非穩壓式來源電源調節的各種工業應用所設計。LMR51635 可在 400kHz 切換頻率下運作，以支援使用相對較小的電感器，進而實現最佳設計尺寸。LMR51635 支援高達 3.5A 的連續輸出電流。

使用指南: PDF | HTML
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SOT-23-THN (DDC) 6 Ultra Librarian
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