전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LMR66430-EP

활성

1.5µA IQ 및 저 EMI를 지원하는 36V 3A 동기식 스텝다운 컨버터로 향상된 제품

제품 상세 정보

Rating 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 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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기술 자료

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3개 모두 보기
유형 직함 날짜
* Data sheet LMR66430-EP 36V, 3A, Ultra-Small, Synchronous Step-Down Converter datasheet 2024/09/12
* Radiation & reliability report LMR66430-EP Enhanced Product Qualification and Reliability Report PDF | HTML 2024/09/27
EVM User's guide LMR66430-EP Evaluation Module PDF | HTML 2024/11/13

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

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
TI.com에서 구매 불가
평가 보드

LMR66430NEP-EVM — HotRod™ 패키지가 있는 LMR66430-EP 평가 모듈

LMR66430-EP 평가 모듈(EVM)은 설계자들이 LMR66430-EP 광범위 벅 레귤레이터의 작동과 성능을 평가하도록 지원합니다. LMR66430-EP은 최대 36V의 입력 전압에서 최대 3A의 부하 전류를 구동할 수 있는 사용이 편리한 동기식 강압 DC/DC 컨버터로, 경부하 조건에서 초저 작동 정동작 전류 및 높은 효율을 갖추고 있습니다. LMR66430-EP는 매우 작은 저 EMI 솔루션 크기를 제공하는 소형 2.6 x 2.6-mm HotRod™ 패키지로 제공됩니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
시뮬레이션 모델

LMR66430-EP/LMQ66430-Q1 Unencrypted PSpice Model

SNVMCE5.ZIP (254 KB) - PSpice Model
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN-FCRLF (RXB) 14 Ultra Librarian

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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