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LMR66430-EP

現行

具 1.5µA IQ 與低 EMI 的車用、36V、3A 同步降壓轉換器

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產品規格表

LMR66430-EP

現行
產品規格表 立即訂購

產品詳細資料

Rating HiRel Enhanced Product Topology Buck Iout (max) (A) 3 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 35 Vout (min) (V) 1 Features Enable, Fixed Output, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -55 to 150 Iq (typ) (A) 0.0000015 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
Rating HiRel Enhanced Product Topology Buck Iout (max) (A) 3 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 35 Vout (min) (V) 1 Features Enable, Fixed Output, Fixed soft start, Forced PWM, Frequency synchronization, Light-load efficiency, Overcurrent protection, Power good, Spread Spectrum, Synchronous rectification, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -55 to 150 Iq (typ) (A) 0.0000015 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
VQFN-FCRLF (RXB) 14 6.76 mm² (2.6 mm × 2.6 mm)
  • Wide input voltage range
    • 3.35V to 36V rising edge
    • 2.7V to 36V falling edge
    • 42V absolute maximum
  • Integrated 132mΩ and 75mΩ MOSFETs
  • Optimized for low EMI requirements:
    • Dual Random Spread Spectrum reduces peak emissions
    • Pin selectable FPWM mode for constant frequency at light loads and FSW synchronization with MODE/SYNC pin
    • Adjustable FSW: 200kHz – 2.2MHz with RT pin
  • Miniature design size and low component cost:
    • 2.6mm × 2.6mm enhanced HotRod™ QFN package with wettable flanks and internal lead free solder
    • Internal control loop compensation
  • Wide input voltage range
    • 3.35V to 36V rising edge
    • 2.7V to 36V falling edge
    • 42V absolute maximum
  • Integrated 132mΩ and 75mΩ MOSFETs
  • Optimized for low EMI requirements:
    • Dual Random Spread Spectrum reduces peak emissions
    • Pin selectable FPWM mode for constant frequency at light loads and FSW synchronization with MODE/SYNC pin
    • Adjustable FSW: 200kHz – 2.2MHz with RT pin
  • Miniature design size and low component cost:
    • 2.6mm × 2.6mm enhanced HotRod™ QFN package with wettable flanks and internal lead free solder
    • Internal control loop compensation

The LMR66430-EP is a small 36V, 3A, synchronous step-down DC/DC converter with an enhanced HotRod QFN package. This easy-to-use converter supports a wide input voltage range of 2.7V to 36V (after start-up or after operating) with transients up to 42V.

The LMR66430-EP is specifically designed to meet low standby power requirements for always-on, applications. Auto mode enables frequency foldback when operating at light loads, allowing high light load efficiency. A seamless transition between pulse width modulation (PWM) and pulse frequency modulation (PFM) modes along with very low MOSFET ON resistances makes sure there is exceptional efficiency across the entire load range. The control architecture (peak current mode) and feature set are an excellent choice for an ultra-small design size with minimal output capacitance. The device minimizes input filter size by using dual-random spread spectrum (DRSS), a low-EMI enhanced HotRod QFN package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency to avoid noise sensitive frequency bands. There are NC pins between critical high voltage pins, reducing potential short circuits between pins. The rich feature set of the LMR66430-EP is designed to simplify implementation for a wide range of industrial end equipment.

The LMR66430-EP is a small 36V, 3A, synchronous step-down DC/DC converter with an enhanced HotRod QFN package. This easy-to-use converter supports a wide input voltage range of 2.7V to 36V (after start-up or after operating) with transients up to 42V.

The LMR66430-EP is specifically designed to meet low standby power requirements for always-on, applications. Auto mode enables frequency foldback when operating at light loads, allowing high light load efficiency. A seamless transition between pulse width modulation (PWM) and pulse frequency modulation (PFM) modes along with very low MOSFET ON resistances makes sure there is exceptional efficiency across the entire load range. The control architecture (peak current mode) and feature set are an excellent choice for an ultra-small design size with minimal output capacitance. The device minimizes input filter size by using dual-random spread spectrum (DRSS), a low-EMI enhanced HotRod QFN package, and an optimized pinout. The MODE/SYNC and RT pin variants can be used to set or synchronize the frequency to avoid noise sensitive frequency bands. There are NC pins between critical high voltage pins, reducing potential short circuits between pins. The rich feature set of the LMR66430-EP is designed to simplify implementation for a wide range of industrial end equipment.
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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 LMR66430-EP 36V, 3A, Ultra-Small, Synchronous Step-Down Converter datasheet 2024/9/12
* 輻射及可靠性報告 LMR66430-EP Enhanced Product Qualification and Reliability Report PDF | HTML 2024/9/27

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

LMQ66430-2EVM — 具強化型 HotRod™ QFN、適用於 36-V 3-A 同步降壓轉換器的 LMQ66430 評估模組

LMQ66430-2EVM 評估模組 (EVM) 有助於設計人員評估 LMQ66430-Q1 裝置的運作和性能，而這是一款同步降壓 DC/DC 轉換器，能夠從高達 36V 的輸入電壓驅動高達 3A 的負載電流。此外，LMQ66430-Q1 具有超低運作靜態電流，輕負載時提供高效率，並且採用小型 2.6mm × 2.6mm 強化型 HotRod™ QFN 封裝，提供低 EMI 解決方案尺寸。

使用指南: PDF | HTML
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開發板

LMR66430NEP-EVM — 採用 HotRod™ 封裝的 LMR66430-EP 評估模組

LMR66430-EP 評估模組 (EVM) 可協助設計人員評估 LMR66430-EP 廣泛輸入降壓穩壓器的運作及性能。LMR66430-EP 為一款簡單易用的同步降壓 DC/DC 轉換器，可從最高 36 V 的輸入電壓驅動高達 3 A 的負載電流。LMR66430NEP 在低負載下具有超低運作靜態電流和高效率。LMR66430-EP 採用小型 2.6 x 2.6-mm HotRod™ 封裝，可提供超小型、低 EMI 解決方案尺寸。

使用指南: PDF | HTML
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模擬型號

LMR66430-EP/LMQ66430-Q1 Unencrypted PSpice Model

SNVMCE5.ZIP (254 KB) - PSpice 模型
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VQFN-FCRLF (RXB) 14 Ultra Librarian
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