전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LMR36503-Q1

활성

크기 및 저부하 효율성에 최적화된 오토모티브 3V~65V, 0.3A 벅 컨버터

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) 0.3 Vin (min) (V) 3 Vin (max) (V) 65 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, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 4 Duty cycle (max) (%) 99
Rating Automotive Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 3 Vin (max) (V) 65 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, Pre-Bias Start-Up, Soft Start Fixed, Spread Spectrum, Synchronous Rectification, Wettable flanks package Control mode current mode Vout (min) (V) 1 Vout (max) (V) 28 Iq (typ) (µA) 4 Duty cycle (max) (%) 99
VQFN-HR (RPE) 9 4 mm² 2 x 2
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • >70% efficiency at 5 mA
    • 4 µA IQ (switching) at 24 VIN to 3.3 VOUT (fixed output option)
  • Miniature solution size and low component cost
    • 2-mm × 2-mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
    • Junction temperature range –40°C to +150°C
    • Pseudo-random spread spectrum compatible with CISPR 25 EMI standard
    • Wide input voltage range: 3.0 V (falling threshold) to 65 V
    • Adjustable, 3.3-V and 5-V fixed output voltage options available
    • Synchronizable with MODE/SYNC pin variant
    • Adjustable FSW: 200 kHz to 2.2 MHz with RT pin variant
    • Pin compatible with LMR36506-Q1 (65 V, 600 mA)
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • >70% efficiency at 5 mA
    • 4 µA IQ (switching) at 24 VIN to 3.3 VOUT (fixed output option)
  • Miniature solution size and low component cost
    • 2-mm × 2-mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
    • Junction temperature range –40°C to +150°C
    • Pseudo-random spread spectrum compatible with CISPR 25 EMI standard
    • Wide input voltage range: 3.0 V (falling threshold) to 65 V
    • Adjustable, 3.3-V and 5-V fixed output voltage options available
    • Synchronizable with MODE/SYNC pin variant
    • Adjustable FSW: 200 kHz to 2.2 MHz with RT pin variant
    • Pin compatible with LMR36506-Q1 (65 V, 600 mA)

The LMR36503-Q1 is the industry’s smallest 65 V, 0.3 A synchronous step-down DC/DC converter in 2-mm x 2-mm HotRod™ package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and support fixed 3.3 V, 5 V and other adjustable output voltages.

The LMR36503-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503-Q1 helps it remain functional during a deep input voltage sag condition, making it an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503-Q1 to an external clock. With the right resistor selection, the LMR36503-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

The LMR36503-Q1 is the industry’s smallest 65 V, 0.3 A synchronous step-down DC/DC converter in 2-mm x 2-mm HotRod™ package. This easy-to-use converter can handle input voltage transients up to 70 V, provide excellent EMI performance and support fixed 3.3 V, 5 V and other adjustable output voltages.

The LMR36503-Q1 uses peak current mode control architecture with internal compensation and maintains stable operation with minimal output capacitance. The wide input operating range of the LMR36503-Q1 helps it remain functional during a deep input voltage sag condition, making it an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503-Q1 provides precise indication of the output voltage status, eliminating the requirement for an external supervisor. A seamless transition from FPWM to PFM, with an ultra-low standby quiescent current allows the LMR36503-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503-Q1 to an external clock. With the right resistor selection, the LMR36503-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
신규 LMR36503E-Q1 활성 차량용 3V~65V, 0.3A 벅 컨버터 Grade 0 Automotive version
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
LMR36506-Q1 활성 크기 및 저부하 효율성에 최적화된 3V~65V, 6A 벅 컨버터 Pin-to-pin 600-mA version

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
5개 모두 보기
유형 직함 날짜
* Data sheet LMR36503-Q1 3-V to 65-V, 0.3-A Synchronous Buck Converter Optimized for Size and Light Load Efficiency datasheet (Rev. B) PDF | HTML 2020/09/22
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
Functional safety information LMR3650x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 2020/10/26
EVM User's guide LMR36506MSCEVM User’s Guide (Rev. A) 2020/05/19
Technical article Optimizing flip-chip IC thermal performance in automotive designs PDF | HTML 2019/12/11

설계 및 개발

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

평가 보드

LMR36503MSCEEVM — LMR360503E-Q1 평가 모듈 

LMR36503E-Q1은 좁은 공간에서 높은 변환 효율을 달성하기 위해 동기 정류 기능을 갖춘 65V DC/DC, 0.3A 벅 레귤레이터입니다. LMR36503E-Q1 평가 모듈(EVM)은 5.5V~65V의 넓은 입력 전압 범위에서 작동하여 2.2MHz 스위칭 주파수에서 최대 0.3A 부하까지 조정된 5V 출력을 제공합니다. LMR36503MSCEEVM은 최대 부하에서 1.5% 이상의 출력 전압 조정 정확도를 지원할 수 있으며 외부 저항 분할기를 사용하여 조정할 수 있습니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
평가 보드

LMR36506EVM — 오토모티브 3V~65V, 0.6A 초소형 동기 벅 컨버터 평가 모듈

The LMR36506MSCEVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the LMR36506-Q1 synchronous step-down converter. The LMR36503-Q1 can also be evaluated with LMR36506MSCEVM.

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LMR36503MSC-Q1 PSpice Unencrypted Transient Model

SNVMC16.ZIP (528 KB) - PSpice Model
시뮬레이션 모델

LMR36503MSC3-Q1 PSpice Unencrypted Transient Model

SNVMC17.ZIP (530 KB) - PSpice Model
시뮬레이션 모델

LMR36503MSC5-Q1 PSpice Unencrypted Transient Model

SNVMC28.ZIP (524 KB) - PSpice Model
시뮬레이션 모델

LMR36503RS3-Q1 PSpice Unencrypted Transient Model

SNVMC26.ZIP (517 KB) - PSpice Model
시뮬레이션 모델

LMR36503RS5-Q1 PSpice Unencrypted Transient Model

SNVMC27.ZIP (538 KB) - PSpice Model
시뮬레이션 모델

LMR36506R PSpice Unencrypted Transient Model

SNVMBW4.ZIP (166 KB) - PSpice Model
계산 툴

LMR36503E-Q1-CALC LMR36503, LMR36503-Q1, LMR36503E-Q1 converter quickstart tool

Welcome to the quickstart design tool for the LMR36503, LMR36503-Q1, and LMR36503E-Q1. This tool facilitates and assists the power supply engineer with the design of a DC/DC buck regulator based on the above converter family to meet application requirements.
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨버터(통합 FET)
LMR36503E-Q1 차량용 3V~65V, 0.3A 벅 컨버터 LMR36503 6μA IQ의 3V~65V, 0.3A 초소형 동기 벅 컨버터 LMR36503-Q1 크기 및 저부하 효율성에 최적화된 오토모티브 3V~65V, 0.3A 벅 컨버터
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN-HR (RPE) 9 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

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

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