전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM5005

활성

7~75V 넓은 입력 전압 범위, 2.5A 전류 모드 비동기형 벅 레귤레이터

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2.5 Vin (min) (V) 7 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 500 Features Enable, Frequency synchronization, Over Current Protection Control mode current mode Vout (min) (V) 1.23 Vout (max) (V) 70 Iq (typ) (µA) 3000 Duty cycle (max) (%) 99
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2.5 Vin (min) (V) 7 Vin (max) (V) 75 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 500 Features Enable, Frequency synchronization, Over Current Protection Control mode current mode Vout (min) (V) 1.23 Vout (max) (V) 70 Iq (typ) (µA) 3000 Duty cycle (max) (%) 99
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • High-Efficiency DC-DC Buck Converter
    • Wide Input Voltage Range From 7 V to 75 V
    • Adjustable Output Voltage as Low as 1.225 V
    • Output Current as High as 2.5 A
    • Junction Temperature Range –40°C to 125°C
  • Integrated 75-V, 160-mΩ Buck MOSFET
  • Meets EN55022 and CISPR 22 EMI Standards
  • ±1.5% Feedback Voltage Accuracy
  • Emulated Peak Current-Mode Control
    • Ultra-Fast Line and Load Transient Response
  • Switching Frequency From 50 kHz to 500 kHz
  • Master or Slave Frequency Synchronization Input
  • 80-ns Minimum PWM ON Time For Low VOUT
  • Monotonic Start-up into Prebiased Output
  • Internal High-Voltage VCC Bias Supply Regulator
  • Auxiliary Bias Supply Option to VCC
  • Configurable Soft Start With Tracking
  • Precision Standby and Shutdown Input
    • Programmable Input UVLO With Hysteresis
  • Remote Shutdown and Standby Control
  • Cycle-by-Cycle Overcurrent Protection
  • VCC and Gate Drive UVLO Protection
  • Thermal Shutdown Protection With Hysteresis
  • Thermally-Enhanced 20-Pin HTSSOP Package
  • High-Efficiency DC-DC Buck Converter
    • Wide Input Voltage Range From 7 V to 75 V
    • Adjustable Output Voltage as Low as 1.225 V
    • Output Current as High as 2.5 A
    • Junction Temperature Range –40°C to 125°C
  • Integrated 75-V, 160-mΩ Buck MOSFET
  • Meets EN55022 and CISPR 22 EMI Standards
  • ±1.5% Feedback Voltage Accuracy
  • Emulated Peak Current-Mode Control
    • Ultra-Fast Line and Load Transient Response
  • Switching Frequency From 50 kHz to 500 kHz
  • Master or Slave Frequency Synchronization Input
  • 80-ns Minimum PWM ON Time For Low VOUT
  • Monotonic Start-up into Prebiased Output
  • Internal High-Voltage VCC Bias Supply Regulator
  • Auxiliary Bias Supply Option to VCC
  • Configurable Soft Start With Tracking
  • Precision Standby and Shutdown Input
    • Programmable Input UVLO With Hysteresis
  • Remote Shutdown and Standby Control
  • Cycle-by-Cycle Overcurrent Protection
  • VCC and Gate Drive UVLO Protection
  • Thermal Shutdown Protection With Hysteresis
  • Thermally-Enhanced 20-Pin HTSSOP Package

The LM5005 high-voltage buck converter features all of the functions necessary to implement an efficient high-voltage switching regulator with a minimum number of external components. This easy-to-use converter operates over an input voltage range from 7 V to 75 V and delivers a maximum output current of 2.5 A. The control loop architecture is based upon current-mode control using an emulated current ramp for high noise immunity. Current-mode control provides inherent line feed-forward, cycle-by-cycle overcurrent protection and straightforward loop compensation. The use of an emulated control ramp reduces noise sensitivity of the PWM circuit, allowing reliable control of small duty cycles necessary in high input voltage applications.

The switching frequency is resistor-programmable from 50 kHz to 500 kHz. To reduce EMI, an oscillator synchronization pin allows multiple LM5005 regulators to self-synchronize or be synchronized to an external clock signal. Additional protection features include configurable soft start, external power supply tracking, thermal shutdown with automatic recovery, and remote shutdown capability.

The LM5005 is available in an 20-pin HTSSOP package with an exposed pad that is soldered to the PCB to achieve a low junction-to-board thermal impedance. To create a custom regulator design, use the LM5005 with WEBENCH® Power Designer.

The LM5005 high-voltage buck converter features all of the functions necessary to implement an efficient high-voltage switching regulator with a minimum number of external components. This easy-to-use converter operates over an input voltage range from 7 V to 75 V and delivers a maximum output current of 2.5 A. The control loop architecture is based upon current-mode control using an emulated current ramp for high noise immunity. Current-mode control provides inherent line feed-forward, cycle-by-cycle overcurrent protection and straightforward loop compensation. The use of an emulated control ramp reduces noise sensitivity of the PWM circuit, allowing reliable control of small duty cycles necessary in high input voltage applications.

The switching frequency is resistor-programmable from 50 kHz to 500 kHz. To reduce EMI, an oscillator synchronization pin allows multiple LM5005 regulators to self-synchronize or be synchronized to an external clock signal. Additional protection features include configurable soft start, external power supply tracking, thermal shutdown with automatic recovery, and remote shutdown capability.

The LM5005 is available in an 20-pin HTSSOP package with an exposed pad that is soldered to the PCB to achieve a low junction-to-board thermal impedance. To create a custom regulator design, use the LM5005 with WEBENCH® Power Designer.

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기술 자료

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유형 직함 날짜
* Data sheet LM5005 75-V, 2.5-A Step-Down Switching Regulator With Wide Input Voltage Range datasheet (Rev. E) PDF | HTML 2016/11/11
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024/04/30
White paper Overcoming Challenges in Designing Step-Dwn Reg Apps w/40V Input Voltage (Rev. A) 2018/07/03
EVM User's guide AN-1748 LM5005 Evaluation Board (Rev. A) 2013/04/30

설계 및 개발

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

평가 보드

LM5005EVAL — 넓은 Vin 2.5A 벅 레귤레이터 평가 모듈

LM5005 High Voltage 2.5 Amp Buck Regulator

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM5005 PSpice Transient Model

SNVMAB6.ZIP (256 KB) - PSpice Model
시뮬레이션 모델

LM5005 Unencrypted PSpice Transient Model

SNVMAL0.ZIP (4 KB) - PSpice Model
패키지 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 20 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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