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LMQ66420-Q1

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具有 1.5µA IQ 的汽车类、36V、2A 低 EMI 同步降压转换器

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LMQ66420-Q1

正在供货
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产品详情

Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 35 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable, Wettable flanks package EMI & noise features Fixed-frequency control, Integrated capacitors, Low parasitic packaging, Mitigated interference & noise technology – architecture 2 (MINT 2), Pinout optimization, Spread Spectrum, Switch-node waveshaping Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.0000015 Duty cycle (max) (%) 98 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 2 Vin (max) (V) 36 Vin (min) (V) 3 Vout (max) (V) 35 Vout (min) (V) 1 Features Enable, Fixed Output, Forced PWM, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable, Wettable flanks package EMI & noise features Fixed-frequency control, Integrated capacitors, Low parasitic packaging, Mitigated interference & noise technology – architecture 2 (MINT 2), Pinout optimization, Spread Spectrum, Switch-node waveshaping Control mode current mode Operating temperature range (°C) -40 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)
  • Functional Safety-Capable
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Mitigated interference and noise technology – architecture 2 (MINT 2):
    • Facilitates CISPR 25 class 5 compliance
    • Integrated bypass, boot capacitors reduce EMI
    • Dual random spread spectrum reduces peak emissions
    • Enhanced HotRod™ QFN package minimizes switch node ringing
  • Greater than 85% efficiency at 1mA
  • Designed for automotive applications:
    • Junction temperature range: –40°C to +150°C
    • NC pin between critical pins for better reliability
    • Best in-class pin FMEA
    • Supports 42V automotive load dump transients
    • Supports 3VIN for automotive cold crank
  • Miniature design size and low component cost:
    • Integrated input bypass capacitors and bootstrap capacitor reducing EMI
    • 2.6mm × 2.6mm enhanced HotRod QFN package with wettable flanks
    • Internal control loop compensation
  • Functional Safety-Capable
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Mitigated interference and noise technology – architecture 2 (MINT 2):
    • Facilitates CISPR 25 class 5 compliance
    • Integrated bypass, boot capacitors reduce EMI
    • Dual random spread spectrum reduces peak emissions
    • Enhanced HotRod™ QFN package minimizes switch node ringing
  • Greater than 85% efficiency at 1mA
  • Designed for automotive applications:
    • Junction temperature range: –40°C to +150°C
    • NC pin between critical pins for better reliability
    • Best in-class pin FMEA
    • Supports 42V automotive load dump transients
    • Supports 3VIN for automotive cold crank
  • Miniature design size and low component cost:
    • Integrated input bypass capacitors and bootstrap capacitor reducing EMI
    • 2.6mm × 2.6mm enhanced HotRod QFN package with wettable flanks
    • Internal control loop compensation

The LMQ664x0-Q1 is the industry smallest 36V, 3A (available in 2A and 1A variants) synchronous step-down DC/DC converter with an integrated bypass and bootstrap capacitor in 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 LMQ664x0-Q1 is specifically designed to meet low standby power requirements for always-on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing an unloaded typical current consumption of 1.5µA at 13.5VIN and high light load efficiency. A seamless transition between PWM and 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 optimized 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 pin 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 failures (excellent choice pin FMEA). Mitigated interference and noise technology using architecture 2 features (MINT 2) enable the device to support low-EMI applications. The rich feature set of the LMQ664x0-Q1 is designed to simplify implementation for a wide range of automotive end equipment.

The LMQ664x0-Q1 is the industry smallest 36V, 3A (available in 2A and 1A variants) synchronous step-down DC/DC converter with an integrated bypass and bootstrap capacitor in 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 LMQ664x0-Q1 is specifically designed to meet low standby power requirements for always-on, automotive applications. Auto mode enables frequency foldback when operating at light loads, allowing an unloaded typical current consumption of 1.5µA at 13.5VIN and high light load efficiency. A seamless transition between PWM and 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 optimized 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 pin 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 failures (excellent choice pin FMEA). Mitigated interference and noise technology using architecture 2 features (MINT 2) enable the device to support low-EMI applications. The rich feature set of the LMQ664x0-Q1 is designed to simplify implementation for a wide range of automotive end equipment.
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评估板

LMQ66430-2EVM — LMQ66430 采用增强型 Hotrod™ QFN 封装的 36V、3A 同步降压转换器评估模块

LMQ66430-2EVM 评估模块 (EVM) 可帮助设计人员评估 LMQ66430-Q1 器件的运行情况和性能，后者是一款同步降压直流/直流转换器，能驱动高达 3A 的负载电流，输入电压高达 36V。LMQ66430-Q1 具有超低的工作静态电流，在轻负载条件下实现高效率，采用小型 2.6mm × 2.6mm 增强型 HotRod™ QFN 封装，可提供小型低 EMI 解决方案尺寸。

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