전력 관리 DC/DC switching regulators DC/DC converters

LMR36503E-Q1

활성

차량용 3V~-65V 0.3A 벅 컨버터

제품 상세 정보

Rating Automotive Topology Buck Iout (max) (A) 0.3 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1 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 EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 175 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
Rating Automotive Topology Buck Iout (max) (A) 0.3 Vin (max) (V) 65 Vin (min) (V) 3 Vout (max) (V) 28 Vout (min) (V) 1 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 EMI features Low parasitic Hotrod packaging, Spread Spectrum Control mode current mode Operating temperature range (°C) -40 to 175 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 99 TI functional safety category Functional Safety-Capable
VQFN-HR (RPE) 9 4 mm² 2 x 2
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 0: –40°C to +150°C, TA
  • > 70% efficiency at 5mA
    • 4µA IQ (switching) at 24VIN to 3.3VOUT (fixed output option)
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
  • Create a custom design using the LMR36503E-Q1 with the WEBENCH Power Designer
  • AEC-Q100-qualified for automotive applications:
    • Device temperature grade 0: –40°C to +150°C, TA
  • > 70% efficiency at 5mA
    • 4µA IQ (switching) at 24VIN to 3.3VOUT (fixed output option)
  • Miniature design size and low component cost
    • 2mm × 2mm HotRod™ package with wettable flanks
    • Internal compensation
  • Designed for automotive applications:
  • Create a custom design using the LMR36503E-Q1 with the WEBENCH Power Designer

The LMR36503E-Q1 is a 65V, 0.3A synchronous step-down DC/DC converter in 2mm × 2mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V and other adjustable output voltages.

The LMR36503E-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 LMR36503E-Q1 helps the device remain functional during a deep input voltage sag condition, making the device an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503E-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 LMR36503E-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503E-Q1 to an external clock. With the right resistor selection, the LMR36503E-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503E-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

The LMR36503E-Q1 is a 65V, 0.3A synchronous step-down DC/DC converter in 2mm × 2mm HotRod package. This easy-to-use converter can handle input voltage transients up to 70V, provide excellent EMI performance, and support fixed 3.3V, 5V and other adjustable output voltages.

The LMR36503E-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 LMR36503E-Q1 helps the device remain functional during a deep input voltage sag condition, making the device an excellent choice for automotive applications withstanding severe cold crank start impulses. The PGOOD flag in the LMR36503E-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 LMR36503E-Q1 to support much higher system efficiency at low output loads. The MODE/SYNC pin variant helps to synchronize the LMR36503E-Q1 to an external clock. With the right resistor selection, the LMR36503E-Q1 RT pin variant can also be externally programmed to any desired switching frequency of operation. The rich feature set of the LMR36503E-Q1 is designed to simplify implementation for a wide range of automotive end equipments.

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기술 자료

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상위 문서 유형 직함 형식 옵션 날짜
* Data sheet LMR36503E-Q1 3V to 65V, 0.3A , Automotive, Grade 0, Synchronous Buck Converter Optimized for Size and Light Load Efficiency datasheet (Rev. A) PDF | HTML 2024/09/18
Functional safety information LMR36503E-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2024/06/13

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 구매할 수 없음
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

LMR36503RS3-Q1 PSpice Unencrypted Transient Model

SNVMC26.ZIP (517 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.
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VQFN-HR (RPE) 9 Ultra Librarian

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