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DC/DC 切換穩壓器
DC/DC 轉換器

LMR36500

現行

具有 6μA IQ 的 3V 至 65V、50mA 超小型同步降壓轉換器

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產品規格表

LMR36500

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Buck Iout (max) (A) 0.005 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 16 Vout (min) (V) 1 Features Enable, Forced PWM, Light Load Efficiency, Soft Start Fixed, Spread Spectrum EMI features Low parasitic Hotrod packaging Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 TI functional safety category Functional Safety-Capable
Rating Catalog Topology Buck Iout (max) (A) 0.005 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 16 Vout (min) (V) 1 Features Enable, Forced PWM, Light Load Efficiency, Soft Start Fixed, Spread Spectrum EMI features Low parasitic Hotrod packaging Control mode current mode Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000004 TI functional safety category Functional Safety-Capable
VQFN-HR (RPE) 9 4 mm² (2 mm × 2 mm)
  • Functional Safety-Capable
  • Designed for rugged industrial applications:
    • Junction temperature range –40°C to +150°C
    • Input transient capability up to 70 V
    • Wide input voltage range: 3.0 V (falling threshold) to 65 V
    • Minimized switch node ringing to reduce EMI
    • Adjustable and fixed output 3.3-V and 5-V voltage options available
  • Designed for scalable industrial power supplies:
    • Pin compatible with LMR36503 (65 V, 300 mA) and LMR36506 (65 V, 600 mA)
    • Adjustable switching frequency: 200 kHz to 2.2 MHz with RT pin variant
  • Minimized design size and cost:
    • Ultra-small, 2-mm × 2-mm HotRod™ package
  • High efficiency across load range with low power dissipation:
    • Greater than 80% peak efficiency at 1 MHz (3.3-V V OUT)
  • Functional Safety-Capable
  • Designed for rugged industrial applications:
    • Junction temperature range –40°C to +150°C
    • Input transient capability up to 70 V
    • Wide input voltage range: 3.0 V (falling threshold) to 65 V
    • Minimized switch node ringing to reduce EMI
    • Adjustable and fixed output 3.3-V and 5-V voltage options available
  • Designed for scalable industrial power supplies:
    • Pin compatible with LMR36503 (65 V, 300 mA) and LMR36506 (65 V, 600 mA)
    • Adjustable switching frequency: 200 kHz to 2.2 MHz with RT pin variant
  • Minimized design size and cost:
    • Ultra-small, 2-mm × 2-mm HotRod™ package
  • High efficiency across load range with low power dissipation:
    • Greater than 80% peak efficiency at 1 MHz (3.3-V V OUT)

The LMR36500 is the industry smallest 65-V, 50-mA synchronous step-down DC/DC converter in 4-mm 2 HotRod package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and supports fixed, 3.3 V, 5 V and other adjustable output voltages.

The LMR36500 uses a peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR36500 with the right resistor selection from the RT pin to ground can be externally programmed to any desired switching frequency of operation over a wide range from 200 kHz to 2.2 MHz. The precision EN/UVLO feature allows precise control of the device during start-up and shutdown. The PGOOD flag, with built-in glitch filter and delayed release, offers a true indication of the system status, eliminating the requirement for an external voltage supervisor. The compact design size and rich feature set of LMR36500 simplifies implementation for a wide range of industrial applications.

The LMR36500 is the industry smallest 65-V, 50-mA synchronous step-down DC/DC converter in 4-mm 2 HotRod package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and supports fixed, 3.3 V, 5 V and other adjustable output voltages.

The LMR36500 uses a peak current mode control architecture with internal compensation to maintain stable operation with minimal output capacitance. The LMR36500 with the right resistor selection from the RT pin to ground can be externally programmed to any desired switching frequency of operation over a wide range from 200 kHz to 2.2 MHz. The precision EN/UVLO feature allows precise control of the device during start-up and shutdown. The PGOOD flag, with built-in glitch filter and delayed release, offers a true indication of the system status, eliminating the requirement for an external voltage supervisor. The compact design size and rich feature set of LMR36500 simplifies implementation for a wide range of industrial 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 LMR365003-V to 65-V,50-mA Wide VINSynchronous Buck Converter Optimized for Size and Light Load Efficiency datasheet PDF | HTML 2023/11/15
功能安全資訊 LMR36500 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2023/11/3
證書 LMR36500EVM EU Declaration of Conformity (DoC) PDF | HTML 2023/10/2
應用說明 Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 2021/7/26
Application brief Powering Drones With a Wide VIN DC-DC Converter (Rev. A) 2019/2/5
類比設計期刊 Accurately measuring efficiency of ultralow-IQ devices 2014/1/22

設計與開發

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開發板

LMR36500EVM — 適用於 65-V 50-mA 同步降壓轉換器的 LMR36500 評估模組

LMR36500EVM 評估模組可協助設計人員評估 LMR36500 廣泛輸入降壓穩壓器的運作及性能。LMR36500 為一款簡單易用的同步降壓 DC/DC 轉換器，可從最高 65 V 的輸入電壓中驅動高達 50 mA 負載電流。LMR36500 在低負載下具有超低運作靜態電流和高效率。LMR36500 採用 2-mm x 2-mm HotRod 封裝，可提供超小型的低 EMI 解決方案。
使用指南: PDF | HTML
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計算工具

LMR36500-DESIGN-CALC — LMR36500 Component Calculator

LMR36500 Component Calculator
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參考設計

PMP23580 — 適用於主動式電池平衡的雙向返馳參考設計

此雙向返馳參考設計可處理 18V 至 36V 的匯流排電壓，以及 3V 至 4.2V 的單芯電池。負載電流限制為 5A。在充電狀態下，匯流排電壓可輸入 18V 至 36V ，並在 5A 充電電流下輸出高達 4.2A。電池側會有外部定電流與定電壓（CC/CV）迴路，以維持電池適當充電至電池電壓。在放電模式下，單芯電池（3V ~ 4.2V）成為 Vbus 上的輸入和輸出 27.5V。使用獨立的外部 CC 迴路，電池的輸入電流限制為 5A。匯流排電壓輸出側也具有 CV 迴路，可驗證匯流排電壓是否調節至 27.5Vout。

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VQFN-HR (RPE) 9 Ultra Librarian
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