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

LM70880-Q1

미리 보기

오토모티브, 고밀도, 4.5V~80V 입력, 8A 저 EMI 동기 벅 DC/DC 스텝다운 컨버터

지금 주문
데이터시트

LM70880-Q1

미리 보기
데이터시트 지금 주문

제품 상세 정보

Rating Automotive Operating temperature range (°C) -40 to 150 Type DC/DC converter Iout (max) (A) 8 Vin (min) (V) 4.5 Vin (max) (V) 80 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Stackable, Thermal shutdown, UVLO adjustable Control mode Peak-Current Vout (min) (V) 0.8 Vout (max) (V) 55 Iq (typ) (A) 0.0000065
Rating Automotive Operating temperature range (°C) -40 to 150 Type DC/DC converter Iout (max) (A) 8 Vin (min) (V) 4.5 Vin (max) (V) 80 Switching frequency (min) (kHz) 200 Switching frequency (max) (kHz) 2200 Features Adjustable switching frequency, Auto Mode, Automotive load dump, Enable, Fixed Output, Forced PWM, Frequency synchronization, Low Noise, Over Current Protection, Power good, Soft Start Fixed, Spread Spectrum, Stackable, Thermal shutdown, UVLO adjustable Control mode Peak-Current Vout (min) (V) 0.8 Vout (max) (V) 55 Iq (typ) (A) 0.0000065
VQFN (RRX) 29 36 mm² 6 x 6
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Synchronous DC/DC converter with a versatile buck controller and robust power MOSFETs
    • Wide input voltage range: 4.5 V to 80 V
    • 1% accurate, fixed 3.3 V, 5 V, 12 V, or adjustable outputs from 0.8 V to 55 V
    • Dual-phase control enables paralleling two devices for higher current applications
    • Shutdown mode current: 2.3 µA
    • No-load sleep current: 6.5 µA
  • Optimized for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • Pin-selectable ±8% dual-random spread spectrum reduces peak emissions
    • Switching frequency: 200 kHz to 2.2 MHz
    • Pin-configurable AUTO or FPWM operation
  • Inherent protection features for robust design
    • Internal hiccup-mode overcurrent protection
    • Enable, power-good, and thermal shutdown
    • Internal or external loop compensation
  • 6-mm × 6-mm thermally optimized, RoHS compliant, QFN-29 package with Pb-Free plating
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature
  • Synchronous DC/DC converter with a versatile buck controller and robust power MOSFETs
    • Wide input voltage range: 4.5 V to 80 V
    • 1% accurate, fixed 3.3 V, 5 V, 12 V, or adjustable outputs from 0.8 V to 55 V
    • Dual-phase control enables paralleling two devices for higher current applications
    • Shutdown mode current: 2.3 µA
    • No-load sleep current: 6.5 µA
  • Optimized for low EMI requirements
    • Facilitates CISPR 25 Class 5 compliance
    • Pin-selectable ±8% dual-random spread spectrum reduces peak emissions
    • Switching frequency: 200 kHz to 2.2 MHz
    • Pin-configurable AUTO or FPWM operation
  • Inherent protection features for robust design
    • Internal hiccup-mode overcurrent protection
    • Enable, power-good, and thermal shutdown
    • Internal or external loop compensation
  • 6-mm × 6-mm thermally optimized, RoHS compliant, QFN-29 package with Pb-Free plating

The LM70880-Q1 is a compact, easy-to-use, 4.5-V to 80-V, ultra-low I Q, synchronous step-down DC/DC converter featuring a versatile buck controller and a pair of power MOSFETs designed for delivering of up to 8 A of output current at fixed output voltages of 3.3 V, 5 V, 12 V, or an adjustable output.

The converter uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. A pair of LM70880-Q1 converters can be set up in an interleaved mode (paralleled outputs) with accurate current sharing for applications requiring up to 16 A of output current.

The LM70880-Q1 features a unique Dual Random Spread Spectrum (DRSS) function that combines a low-frequency triangular modulation with a high-frequency cycle-by-cycle random modulation for improved EMI performance across a high range of radio frequency bands.

Additional features of the LM70880-Q1 include user-selectable diode emulation for lower current consumption at light-load conditions, open-drain Power-Good flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated VCC bias supply regulator, internal 2.75-ms soft-start time, and thermal shutdown protection with automatic recovery.

The LM70880-Q1 converter comes in a 6-mm × 6-mm thermally-optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).

The LM70880-Q1 is a compact, easy-to-use, 4.5-V to 80-V, ultra-low I Q, synchronous step-down DC/DC converter featuring a versatile buck controller and a pair of power MOSFETs designed for delivering of up to 8 A of output current at fixed output voltages of 3.3 V, 5 V, 12 V, or an adjustable output.

The converter uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. A pair of LM70880-Q1 converters can be set up in an interleaved mode (paralleled outputs) with accurate current sharing for applications requiring up to 16 A of output current.

The LM70880-Q1 features a unique Dual Random Spread Spectrum (DRSS) function that combines a low-frequency triangular modulation with a high-frequency cycle-by-cycle random modulation for improved EMI performance across a high range of radio frequency bands.

Additional features of the LM70880-Q1 include user-selectable diode emulation for lower current consumption at light-load conditions, open-drain Power-Good flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated VCC bias supply regulator, internal 2.75-ms soft-start time, and thermal shutdown protection with automatic recovery.

The LM70880-Q1 converter comes in a 6-mm × 6-mm thermally-optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).
open-in-new 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상
자세한 정보 요청

전체 데이터 시트 및 추가 문서를 사용할 수 있습니다. 지금 요청

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기3
유형 직함 날짜
* Data sheet LM708x0-Q1 80-V, 8-A/6-A/4-A, Automotive, High-Efficiency Buck Converters Optimized for High Power Density datasheet PDF | HTML 2023/09/06
EVM User's guide LM70880-Q1 Buck Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2024/03/06
Certificate LM70880QEVM EU Declaration of Conformity (DoC) 2023/07/20

설계 및 개발

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

평가 보드

LM70880QEVM — LM70880-Q1 평가 모듈

LM70880QEVM 고밀도 평가 모듈은 8V~72V의 조정 또는 비조정 고전압 입력 레일을 사용하여 최대 8A의 부하 전류에서 5V의 엄격하게 조정되는 출력 전압을 생성하도록 설계되었습니다. LM70880-Q1은 높은 변환 효율, 탁월한 열 성능, 고급 EMI 완화를 지원합니다.
사용 설명서: PDF | HTML
TI.com에서 구매할 수 없습니다
레퍼런스 디자인

PMP31291 — 27-W Inverting Buck-boost Reference Design

This reference design is a flexible and compact power supply providing a negative output voltage rail. The design includes a LM70880-Q1 device (a 80V, 8A high efficiency buck converter). The output voltage value can be selected among three predefined settings: - 7 V / -10 V / -11 V.
Test report: PDF
패키지 핀 다운로드
VQFN (RRX) 29 옵션 보기
TI의 평가 항목에 대한 표준 약관이 적용됩니다.

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

포럼 주제 모두 보기(영문)

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상