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AC/DC 和 DC/DC 轉換器 (整合式 FET)

LMR43620

現行

具有低 IQ 的 3-V 至 36-V、2-A 低 EMI 同步降壓穩壓器

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產品規格表

LMR43620

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 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 32 Iq (typ) (µA) 1.5 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 3 Vin (max) (V) 36 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO Fixed Control mode current mode Vout (min) (V) 1 Vout (max) (V) 32 Iq (typ) (µA) 1.5 Duty cycle (max) (%) 98
VQFN-HR (RPE) 9 4 mm² 2 x 2
  • Functional Safety-Capable
  • Miniature solution size and low component cost
    • 2-mm × 2-mm HotRod™ package with wettable flanks
    • Internal compensation
  • Optimized for ultra-low EMI requirements
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • F SW synchronization with MODE/SYNC pin
  • Designed for industrial applications
    • –40°C to +150°C junction temperature range
    • Supports 42-V transients
    • Supports 3-V IN minimum
    • Adjustable up to 95% of V IN, 3.3-V and 5-V fixed V OUT options available
  • Greater than 85% efficiency at 1 mA
    • 1.3-µA I Q at 24 V IN, 5 V OUT (fixed)
  • Designed for scalable power supplies
    • 200 kHz to 2.2 MHz (RT pin) adjustable F SW
    • Pin compatible with:
  • Functional Safety-Capable
  • Miniature solution size and low component cost
    • 2-mm × 2-mm HotRod™ package with wettable flanks
    • Internal compensation
  • Optimized for ultra-low EMI requirements
    • Pin selectable FPWM mode for constant frequency at light loads with MODE/SYNC pin
    • F SW synchronization with MODE/SYNC pin
  • Designed for industrial applications
    • –40°C to +150°C junction temperature range
    • Supports 42-V transients
    • Supports 3-V IN minimum
    • Adjustable up to 95% of V IN, 3.3-V and 5-V fixed V OUT options available
  • Greater than 85% efficiency at 1 mA
    • 1.3-µA I Q at 24 V IN, 5 V OUT (fixed)
  • Designed for scalable power supplies
    • 200 kHz to 2.2 MHz (RT pin) adjustable F SW
    • Pin compatible with:

The LMR436x0 is the industry smallest 36-V, 2-A, and 1-A synchronous step-down DC/DC converters in a 2-mm × 2-mm HotRod package. This easy-to-use converter supports a wide input voltage range of 3.0 V to 36 V with transients up to 42 V.

The control architecture and feature-set are optimized for an ultra-small solution size. The device uses peak current mode control to minimize output capacitance. The LMR436x0 minimizes input filter size by using dual random spread spectrum, a low-EMI HotRod package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands.

The compact solution size and rich feature set of LMR436x0 simplifies implementation for a wide range of industrial applications.

The LMR436x0 is the industry smallest 36-V, 2-A, and 1-A synchronous step-down DC/DC converters in a 2-mm × 2-mm HotRod package. This easy-to-use converter supports a wide input voltage range of 3.0 V to 36 V with transients up to 42 V.

The control architecture and feature-set are optimized for an ultra-small solution size. The device uses peak current mode control to minimize output capacitance. The LMR436x0 minimizes input filter size by using dual random spread spectrum, a low-EMI HotRod package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency between 200 kHz and 2.2 MHz to avoid noise sensitive frequency bands.

The compact solution size and rich feature set of LMR436x0 simplifies implementation for a wide range of industrial applications.
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類型 標題 日期
* Data sheet LMR436x0, 36-V, 1-A/2-A Buck Converter with < 2.5 µA IQ at 150°C TJMAX in 4-mm2 HotRod™ QFN datasheet (Rev. B) PDF | HTML 2023年 5月 4日
White paper 克服低功耗應用中的低 IQ 挑戰 (Rev. B) PDF | HTML 2023年 4月 19日
Application note EMI Reduction Technique, Dual Random Spread Spectrum (Rev. A) 2022年 10月 19日
Functional safety information LMR436x0/LMR436x0-Q1 Functional Safety, FIT Rate, FMD and Pin FMA PDF | HTML 2022年 3月 18日
Technical article Lowering audible noise in automotive applications with TI’s DRSS technology PDF | HTML 2021年 3月 18日

設計與開發

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開發板

LMR43620MQ3EVM-2M — LMR43620-Q1 36-V 輸入、3.3-V 輸出、2-A 同步降壓轉換器評估模組

LMR43620MQ3EVM-2M 評估模組 (EVM) 可協助設計人員評估 LMR43620-Q1 廣泛輸入降壓穩壓器的運作及性能。LMR43620-Q1 為一款簡單易用的同步降壓 DC/DC 轉換器，可從最高 36 V 的輸入電壓中驅動高達 2 A 負載電流。LMR43620-Q1 在低負載下搭配超低運作靜態電流和高效率。採用 2-mm x 2-mm HotRod™ 封裝的 LMR43620-Q1 提供超小型、低 EMI 解決方案尺寸。

使用指南: PDF | HTML
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開發板

LMR43620RQ5EVM-400 — LMR43620-Q1 36-V 輸入、5-V 輸出、2-A 同步降壓轉換器評估模組

LMR43620RQ5EVM-400 評估模組 (EVM) 可協助評估 LMR43620-Q1 廣泛輸入降壓穩壓器的運作情形及性能。LMR43620-Q1 為一款簡單易用的同步降壓 DC/DC 轉換器，可從最高 36 V 的輸入電壓中驅動高達 2 A 負載電流。LMR43620-Q1 在低負載下搭配超低運作靜態電流和高效率。採用 2x2-mm HotRod™ 封裝的 LMR43620-Q1 提供超小型、低 EMI 解決方案尺寸。

使用指南: PDF | HTML
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模擬型號

LMR43620MSC3-Q1 PSpice Transient Model

SNVMC98.ZIP (315 KB) - PSpice Model
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VQFN-HR (RPE) 9 Ultra Librarian
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  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 認證摘要
  • 進行中持續性的可靠性監測
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  • 組裝地點

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