홈 전력 관리 DC/DC 스위칭 레귤레이터 DC/DC 컨트롤러
홈
전력 관리
DC/DC 스위칭 레귤레이터
DC/DC 컨트롤러

LM5088-Q1

활성

차량용 등급 4.5~75V 넓은 입력 전압 범위, 전류 모드 비동기형 벅 컨트롤러

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데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능.
LM5141-Q1 활성 오토모티브 넓은 입력 2.2MHz 저 IQ 동기 벅 컨트롤러 Optional spread spectrum for improved EMI.

LM5088-Q1

활성
데이터 시트 지금 주문하기

제품 상세 정보

Rating Automotive Topology Buck Iout (max) (A) 10 Vin (max) (V) 75 Vin (min) (V) 4.5 Vout (max) (V) 70 Vout (min) (V) 1.205 Control mode current mode Features Adjustable current limit, Enable, Frequency synchronization Duty cycle (max) (%) 100 Iq (typ) (A) 0.0038 Number of phases 1 Operating temperature range (°C) -40 to 125
Rating Automotive Topology Buck Iout (max) (A) 10 Vin (max) (V) 75 Vin (min) (V) 4.5 Vout (max) (V) 70 Vout (min) (V) 1.205 Control mode current mode Features Adjustable current limit, Enable, Frequency synchronization Duty cycle (max) (%) 100 Iq (typ) (A) 0.0038 Number of phases 1 Operating temperature range (°C) -40 to 125
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm)
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Emulated current mode control
  • Drives external high-side N-channel MOSFET
  • Ultra-wide input voltage range from 4.5 V to 75 V
  • Low IQ shutdown and standby modes
  • High duty cycle ratio feature for reduced dropout voltage
  • Spread spectrum EMI reduction (LM5088-1)
  • Hiccup timer for overload protection (LM5088-2)
  • Adjustable output voltage from 1.205 V with 1.5% feedback reference accuracy
  • Wide bandwidth error amplifier
  • Single resistor oscillator frequency setting
  • Oscillator synchronization capability
  • Programmable soft start
  • High voltage, low dropout bias regulator
  • Thermal shutdown protection
  • 16-pin HTSSOP package
  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C ambient operating temperature range
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C5
  • Emulated current mode control
  • Drives external high-side N-channel MOSFET
  • Ultra-wide input voltage range from 4.5 V to 75 V
  • Low IQ shutdown and standby modes
  • High duty cycle ratio feature for reduced dropout voltage
  • Spread spectrum EMI reduction (LM5088-1)
  • Hiccup timer for overload protection (LM5088-2)
  • Adjustable output voltage from 1.205 V with 1.5% feedback reference accuracy
  • Wide bandwidth error amplifier
  • Single resistor oscillator frequency setting
  • Oscillator synchronization capability
  • Programmable soft start
  • High voltage, low dropout bias regulator
  • Thermal shutdown protection
  • 16-pin HTSSOP package

The LM5088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient, high-voltage buck converter using a minimum number of external components. The LM5088 can be configured to operate over an ultra-wide input voltage range of 4.5 V to 75 V. This easy-to-use controller includes a level-shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage and low output voltage applications. The LM5088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM5088 is available in two versions: The LM5088-1 provides a ±5% frequency dithering function to reduce the conducted and radiated EMI, while the LM5088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft start, and oscillator synchronization capability. The device is available in a thermally enhanced 16-pin HTSSOP package.

The LM5088 high voltage non-synchronous buck controller features all the necessary functions to implement an efficient, high-voltage buck converter using a minimum number of external components. The LM5088 can be configured to operate over an ultra-wide input voltage range of 4.5 V to 75 V. This easy-to-use controller includes a level-shifted gate driver capable of controlling an external N-channel buck switch. The control method is based upon peak current mode control utilizing an emulated current ramp. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage and low output voltage applications. The LM5088 switching frequency is programmable from 50 kHz to 1 MHz.

The LM5088 is available in two versions: The LM5088-1 provides a ±5% frequency dithering function to reduce the conducted and radiated EMI, while the LM5088-2 provides a versatile restart timer for overload protection. Additional features include a low dropout bias regulator, tri-level enable input to control shutdown and standby modes, soft start, and oscillator synchronization capability. The device is available in a thermally enhanced 16-pin HTSSOP package.
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기술 자료

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10개 모두 보기
상위 문서 유형 직함 형식 옵션 최신 영어 버전 다운로드 날짜
* 데이터 시트 LM5088, LM5088-Q1 Wide Input Range Non-Synchronous Buck Controller datasheet (Rev. J) PDF | HTML 2022. 6. 8
백서 Valuing wide VIN, low EMI synchronous buck circuits for cost-driven, demanding a (Rev. A) 2019. 4. 10
애플리케이션 노트 Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 2019. 3. 12
아날로그 디자인 학술지 Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics 2016. 7. 21
애플리케이션 노트 Load Dump and Cranking Protection for Automotive Backlight LED Power Supply (Rev. A) 2015. 3. 16
애플리케이션 노트 Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) 2012. 10. 26
애플리케이션 노트 Level Shifting Control for an Inverting Buck-boost 2012. 10. 10
애플리케이션 노트 Improved Load Current Capability for Cap-Drop Off-Line Power Supply for E-Meter 2011. 10. 27
애플리케이션 노트 Improve Power Converter Reliability Using Hiccup-Mode Current Limiting 2009. 5. 11
아날로그 디자인 학술지 Using a buck converter in an inverting buck-boost topology 2007. 10. 12

설계 및 개발

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평가 보드

LM5088MH-1EVAL — LM5088-1 - 디더링을 지원하는 넓은 입력 범위 비동기 벅 컨트롤러 평가 모듈

The LM5088-1 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5088 controller IC. The LM5088 evaluation board is available in two versions (like the LM5088 controller): the LM5088-1 (...)

사용 설명서: PDF
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평가 보드

LM5088MH-2EVAL — LM5088-2 - 히컵 모드 재시작을 지원하는 넓은 입력 범위 비동기 벅 컨트롤러

The LM5088-2 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM5088 controller IC. The LM5088 evaluation board is available in two versions (like the LM5088 controller): the LM5088-1 (...)

사용 설명서: PDF
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시뮬레이션 모델

LM5088 TINA-TI Transient Reference Design

SNVM022.TSC (136 KB) - TINA-TI 레퍼런스 설계
지원되는 제품 및 하드웨어
시뮬레이션 모델

LM5088 TINA-TI Transient Spice Model

SNVM021.ZIP (16 KB) - Tina-TI Spice 모델
지원되는 제품 및 하드웨어
계산 툴

LM25088-5088QUICK-CALC — LM(2)5088 빠른 시작 계산기

지원되는 제품 및 하드웨어
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 16 Ultra Librarian
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