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

LM25011-Q1

활성

전류 제한을 조정할 수 있는 차량용 6~42V 넓은 입력 전압 범위, 2A COT(Constant-On-Time) 비동기형 벅 레귤레이터

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LMR43620-Q1 활성 저 IQ를 지원하는 오토모티브 3V~36V, 2A 저 EMI 동기 벅 레귤레이터 Smaller footprint, higher efficiency, lower EMI, lower IQ and spread-spectrum.

LM25011-Q1

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 6 Vin (max) (V) 42 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 2000 Features Adjustable current limit, Over Current Protection, Power good Control mode Constant on-time (COT) Vout (min) (V) 2.51 Vout (max) (V) 40 Iq (typ) (µA) 1200 Duty cycle (max) (%) 99
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 2 Vin (min) (V) 6 Vin (max) (V) 42 Switching frequency (min) (kHz) 50 Switching frequency (max) (kHz) 2000 Features Adjustable current limit, Over Current Protection, Power good Control mode Constant on-time (COT) Vout (min) (V) 2.51 Vout (max) (V) 40 Iq (typ) (µA) 1200 Duty cycle (max) (%) 99
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9
  • LM25011-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)
  • LM25011A Allows Low-Dropout Operation at High Switching Frequency
  • Input Operating Voltage Range: 6 V to 42 V
  • Absolute Maximum Input Rating: 45 V
  • Integrated 2-A N-Channel Buck Switch
  • Adjustable Current Limit Allows for Smaller Inductor
  • Adjustable Output Voltage from 2.51 V
  • Minimum Ripple Voltage at VOUT
  • Power Good Output
  • Switching Frequency Adjustable to 2 MHz
  • COT Topology Features:
    • Switching Frequency Remains Nearly Constant with Load Current and Input Voltage Variations
    • Ultra-Fast Transient Response
    • No Loop Compensation Required
    • Stable Operation with Ceramic Output Capacitors
    • Allows for Smaller Output Capacitor and Current Sense Resistor
  • Adjustable Soft-Start Timing
  • Thermal Shutdown
  • Precision 2% Feedback Reference
  • Package: 10-Pin, HVSSOP
  • Create a Custom Design Using the LM25011 Family with the WEBENCH Power Designer
  • LM25011-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)
  • LM25011A Allows Low-Dropout Operation at High Switching Frequency
  • Input Operating Voltage Range: 6 V to 42 V
  • Absolute Maximum Input Rating: 45 V
  • Integrated 2-A N-Channel Buck Switch
  • Adjustable Current Limit Allows for Smaller Inductor
  • Adjustable Output Voltage from 2.51 V
  • Minimum Ripple Voltage at VOUT
  • Power Good Output
  • Switching Frequency Adjustable to 2 MHz
  • COT Topology Features:
    • Switching Frequency Remains Nearly Constant with Load Current and Input Voltage Variations
    • Ultra-Fast Transient Response
    • No Loop Compensation Required
    • Stable Operation with Ceramic Output Capacitors
    • Allows for Smaller Output Capacitor and Current Sense Resistor
  • Adjustable Soft-Start Timing
  • Thermal Shutdown
  • Precision 2% Feedback Reference
  • Package: 10-Pin, HVSSOP
  • Create a Custom Design Using the LM25011 Family with the WEBENCH Power Designer

The LM25011 constant on-time step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying up to 2 A of load current. This high-voltage regulator contains an N-Channel Buck switch, a startup regulator, current limit detection, and internal ripple control. The constant on-time regulation principle requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load. The adjustable valley current limit detection results in a smooth transition from constant voltage to constant current mode when current limit is reached, without the use of current limit foldback. The PGD output indicates the output voltage has increased to within 5% of the expected regulation value. Additional features include: Low output ripple, VIN under-voltage lock-out, adjustable soft-start timing, thermal shutdown, gate drive pre-charge, gate drive under-voltage lock-out, and maximum duty cycle limit.

The LM25011A has a shorter minimum off-time than the LM25011, which allows for higher frequency operation at low input voltages.

The LM25011 constant on-time step-down switching regulator features all the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying up to 2 A of load current. This high-voltage regulator contains an N-Channel Buck switch, a startup regulator, current limit detection, and internal ripple control. The constant on-time regulation principle requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load. The adjustable valley current limit detection results in a smooth transition from constant voltage to constant current mode when current limit is reached, without the use of current limit foldback. The PGD output indicates the output voltage has increased to within 5% of the expected regulation value. Additional features include: Low output ripple, VIN under-voltage lock-out, adjustable soft-start timing, thermal shutdown, gate drive pre-charge, gate drive under-voltage lock-out, and maximum duty cycle limit.

The LM25011A has a shorter minimum off-time than the LM25011, which allows for higher frequency operation at low input voltages.
filter 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
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기술 자료

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3개 모두 보기
유형 직함 날짜
* Data sheet LM25011, LM25011-Q1, LM25011A, LM25011A-Q1 42-V 2-A Constant On-Time Switching Regulator With Adjustable Current Limit datasheet (Rev. H) PDF | HTML 2014/09/03
White paper Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019/04/10
EVM User's guide AN-1965 LM25011 Evaluation Board (Rev. B) 2013/04/24

설계 및 개발

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

평가 보드

LM25011MY-EVAL — LM25011 넓은 VIN 스위칭 레귤레이터 평가 모듈

The LM25011EVAL evaluation board provides the design engineer with a fully functional buck regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 5V output over an input range of 8V to 42V. The circuit features an adjustable load current in excess of (...)

사용 설명서: PDF
TI.com에서 구매 불가
시뮬레이션 모델

LM25011 PSpice Transient Model

SNVM168.ZIP (90 KB) - PSpice Model
다운로드
시뮬레이션 모델

LM25011 TINA-TI Load Transient Reference Design

SNVM519.TSC (149 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

LM25011 TINA-TI Startup Transient Reference Design

SNVM518.TSC (166 KB) - TINA-TI Reference Design
다운로드
시뮬레이션 모델

LM25011 TINA-TI Transient Spice Model

SNVM520.ZIP (21 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

LM25011 Unencrypted PSpice Transient Model

SNVMAL4.ZIP (3 KB) - PSpice Model
다운로드
계산 툴

LM25011QUICK-CALC — LM25011 빠른 시작 계산기

다운로드
레퍼런스 디자인

TIDA-00169 — 차량용 TFT LCD 디스플레이 솔루션

This reference design implements a video over LVDS solution for automotive infotainment applications.It highlights the support of multi-touch with haptic feedback, LCD backlight control, and ambient light sensing, without the introduction of dedicated support lines back to the host processor. This (...)
Design guide: PDF
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HVSSOP (DGQ) 10 Ultra Librarian
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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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