전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM5168

활성

Fly-Buck™ 기능을 지원하는 6V~120V 넓은 VIN, 300mA DC-DC 컨버터

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck, Flybuck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 6 Vin (max) (V) 120 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 48 Iq (typ) (µA) 10 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -40 to 150 TI functional safety category Functional Safety-Capable Topology Buck, Flybuck Type Converter Iout (max) (A) 0.3 Vin (min) (V) 6 Vin (max) (V) 120 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 1000 Features Enable, Forced PWM, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, Synchronous Rectification, UVLO adjustable Control mode Constant on-time (COT) Vout (min) (V) 1.2 Vout (max) (V) 48 Iq (typ) (µA) 10 Duty cycle (max) (%) 100
HSOIC (DDA) 8 29.4 mm² 4.9 x 6
  • Functional Safety-Capable
  • Designed for reliability in rugged applications
    • Wide input voltage range of 6V to 120V absolute maximum
    • Junction temperature range: –40°C to +150°C
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Designed for scalable industrial power supplies and battery packs
    • Low minimum on and off times of 50ns
    • Adjustable switching frequency up to 1MHz
    • Diode emulation for high light-load efficiency
    • Auto mode with low quiescent current (< 10µA)
    • FPWM for Fly-Buck converter capability
    • 3µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164-Q1, LM5163-Q1, and LM5013-Q1
    • Similar pinout and functionality to LM5017 and LM34927.
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 1.9Ω NFET buck switch
    • Integrated 0.71Ω NFET synchronous rectifier
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • Package options: SOIC PowerPAD™-8 integrated circuit package or WSON-8 package
  • Functional Safety-Capable
  • Designed for reliability in rugged applications
    • Wide input voltage range of 6V to 120V absolute maximum
    • Junction temperature range: –40°C to +150°C
    • Fixed 3ms internal soft-start timer
    • Peak and valley current-limit protection
    • Input UVLO and thermal shutdown protection
  • Designed for scalable industrial power supplies and battery packs
    • Low minimum on and off times of 50ns
    • Adjustable switching frequency up to 1MHz
    • Diode emulation for high light-load efficiency
    • Auto mode with low quiescent current (< 10µA)
    • FPWM for Fly-Buck converter capability
    • 3µA shutdown quiescent current
    • Pin-to-pin compatible with LM5164-Q1, LM5163-Q1, and LM5013-Q1
    • Similar pinout and functionality to LM5017 and LM34927.
  • Integration reduces design size and cost
    • COT mode control architecture
    • Integrated 1.9Ω NFET buck switch
    • Integrated 0.71Ω NFET synchronous rectifier
    • 1.2V internal voltage reference
    • No loop compensation components
    • Internal VCC bias regulator and boot diode
    • Open-drain power-good indicator
    • Package options: SOIC PowerPAD™-8 integrated circuit package or WSON-8 package

The LM5169 and LM5168 synchronous buck converters are designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM516x operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for wide input supply range industrial and high cell count battery pack applications.

With integrated high-side and low-side power MOSFETs, the LM5169 delivers up to 0.65A of output current and the LM5168 delivers up to 0.3A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM516x is available in FPWM or auto mode versions. FPWM mode provides forced CCM operation across the entire load range supporting isolated Fly-Buck converter applications. Auto mode enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.

The LM5169 and LM5168 synchronous buck converters are designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48V nominal input to low-voltage rails for reduced system complexity and design cost. The LM516x operates during input voltage dips as low as 6V, at nearly 100% duty cycle if needed, making the device an excellent choice for wide input supply range industrial and high cell count battery pack applications.

With integrated high-side and low-side power MOSFETs, the LM5169 delivers up to 0.65A of output current and the LM5168 delivers up to 0.3A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM516x is available in FPWM or auto mode versions. FPWM mode provides forced CCM operation across the entire load range supporting isolated Fly-Buck converter applications. Auto mode enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.

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기술 자료

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9개 모두 보기
유형 직함 날짜
* Data sheet LM516x, 0.65A/0.3A, 120V Absolute Maximum, Step-Down Converter With Fly-Buck Converter Capability datasheet (Rev. B) PDF | HTML 2024/12/16
Functional safety information LM5168 and LM5169 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML 2024/11/11
Application note Inverting Buck-Boost Application for the LM5168 PDF | HTML 2023/02/24
Application note Design Considerations of Stacked BQ769x2 With High-Side N-MOSFET PDF | HTML 2023/02/09
Functional safety information LM516x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 2022/09/01
More literature LM5168PEVM EU RoHS Declaration of Conformity (DoC) 2022/08/04
EVM User's guide LM5168PEVM EVM User's Guide PDF | HTML 2022/08/02
User guide LM5168FEVM EVM User's Guide PDF | HTML 2021/11/18
Certificate LM5168FEVM EU RoHS Declaration of Conformity (DoC) 2021/10/20

설계 및 개발

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평가 보드

LM5168FEVM — LM5168 평가 모듈 115V 플라이 벅 레귤레이터

LM5168FEVM 평가 모듈(EVM)은 동기 정류를 사용하여 작은 풋프린트로 높은 변환 효율을 달성하는 115V DC/DC 플라이 벅 레귤레이터인 LM5168을 평가하는 데 필요한 완전 조립 및 테스트를 거친 회로입니다. EVM은 20V~115V의 넓은 입력 전압 범위(최대 120V 절대 최대)에서 작동하며, 750kHz 스위칭 주파수를 가진 최대 0.25V에서 조정 10V 출력을 제공합니다. 플라이벅 토폴로지를 통해 추가적인 10V 부동 출력이 제공됩니다. 출력 전압은 1.5% 이상 설정값의 정확도를 제공하며, 외부 저항 (...)
사용 설명서: PDF | HTML
TI.com에서 구매 불가
평가 보드

LM5168PEVM — LM5168P 115V DC/DC 벅 레귤레이터 평가 모듈

LM5168P 평가 모듈(EVM)은 좁은 공간에서 높은 변환 효율을 달성하기 위해 동기 정류를 사용하는 115 V DC/DC 벅 레귤레이터입니다. 이 EVM은 20V~115V의 넓은 입력 전압 범위(최대 120V 절대 최대)에서 작동하며, 500kHz의 스위칭 주파수를 가지고 최대 0.3V에서 조정된 12V 출력을 제공합니다. 출력 전압은 1.5% 이상 설정값의 정확도를 제공하며, 외부 저항 분할기를 사용하여 조정할 수 있습니다. 이 모듈 설계에서는 넓은 입력 전압(넓은 VIN) 범위, 넓은 듀티 사이클 범위, 통합 고압측 전력 (...)

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

LM5168F PSpice Unencrypted Transient Model

SNVMCA0.ZIP (262 KB) - PSpice Model
CAD/CAE 기호

LM5168FEVM Altium Design Files

SNVR517.ZIP (18313 KB)
계산 툴

SNVR520 LM5169 Quick Start Calculator

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨버터(통합 FET)
LM5168 Fly-Buck™ 기능을 지원하는 6V~120V 넓은 VIN, 300mA DC-DC 컨버터 LM5168-Q1 Fly-Buck™ 기능을 지원하는 오토모티브 6V~120V 와이드 VIN, 300mA DC-DC 컨버터 LM5169 Fly-Buck™ 기능을 지원하는 6V~120V 와이드 VIN, 650mA DC/DC 컨버터
레퍼런스 디자인

TIDA-010247 — High-accuracy battery management unit reference design for 48–1500V energy storage system

This reference design is a high-side, N-channel MOSFET control (up to 32s) battery management unit (BMU), using the stacked BQ769x2 battery monitor family. This design also integrates a CAN interface for BMU stacking high-voltage (up to 1500V) energy storage station applications. High-side, (...)
Design guide: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
HSOIC (DDA) 8 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

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