홈 전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)
홈
전원 관리
AC/DC 및 DC/DC 컨버터(통합 FET)

LMQ66420-Q1

활성

1.5µA IQ를 지원하는 오토모티브 36V, 2A 저 EMI 동기식 스텝다운 컨버터

지금 주문
데이터 시트

LMQ66420-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Automotive 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, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 35 Iq (typ) (µA) 1.5 Duty cycle (max) (%) 98
Rating Automotive 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, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, UVLO adjustable, Wettable flanks package 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
  • Functional Safety-Capable
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Optimized for low EMI requirements:
    • Facilitates CISPR 25 class 5 compliance
    • Integrated bypass and 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
  • Optimized for low EMI requirements:
    • Facilitates CISPR 25 class 5 compliance
    • Integrated bypass and 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). 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). 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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기술 자료

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유형 직함 날짜
* Data sheet LMQ664x0-Q1 , 36V, 1A, 2A, and 3A, Ultra-Small, Synchronous Automotive Step-Down Converter With Integrated VIN Bypass and CBOOT Capacitors datasheet (Rev. D) PDF | HTML 2024/11/25

설계 및 개발

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평가 보드

LMQ66430-2EVM — 향상된 HotRod ™ QFN을 지원하는 36V 3A 동기 스텝다운 컨버터용 LMQ66430 평가 모듈

LMQ66430-2EVM 평가 모듈(EVM)은 설계자가 최대 36V의 입력 전압에서 최대 3A의 부하 전류까지 구동할 수 있는 동기 스텝다운 DC/DC 컨버터인 LMQ66430-Q1 디바이스의 작동 및 성능을 평가하도록 지원합니다. LMQ66430-Q1은 낮은 부하에서 초저 작동 정동작 전류를 갖고 있으며, 낮은 EMI 솔루션 크기를 제공하는 작은 2.6mm × 2.6mm 향상된 HotRod™ QFN 패키지로 제공됩니다.

사용 설명서: PDF | HTML
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VQFN-FCRLF (RXB) 14 Ultra Librarian
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주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

지원 및 교육

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