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LMR66430-EP

現行

具 1.5uA 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 Catalog, HiRel Enhanced Product Operating temperature range (°C) -55 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3 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, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 35 Iq (typ) (µA) 1.5 Duty cycle (max) (%) 98
Rating Catalog, HiRel Enhanced Product Operating temperature range (°C) -55 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 3 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, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable, Wettable flanks package EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Vout (min) (V) 1 Vout (max) (V) 35 Iq (typ) (µA) 1.5 Duty cycle (max) (%) 98
VQFN-FCRLF (RXB) 14 6.76 mm² 2.6 x 2.6
  • 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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類型 標題 日期
* Data sheet LMR66430-EP 36V, 3A, Ultra-Small, Synchronous Step-Down Converter datasheet 2024年 9月 12日
* Radiation & reliability report LMR66430-EP Enhanced Product Qualification and Reliability Report PDF | HTML 2024年 9月 27日
EVM User's guide LMR66430-EP Evaluation Module PDF | HTML 2024年 11月 13日

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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 36 V 的輸入電壓驅動高達 3 A 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 2.6-mm × 2.6-mm 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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模擬型號

LMR66430-EP/LMQ66430-Q1 Unencrypted PSpice Model

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