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

LM20124

활성

2.95~5.5V, 4A, 전류 모드 동기 벅 레귤레이터(오토모티브 등급 옵션 지원)

지금 주문
데이터 시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS62810-Q1 활성 2mm x 3mm 습식 플랭크 QFN 패키지로 제공되는 오토모티브 2.75V ~ 6V, 4A 스텝다운 컨버터 Improved performance: Fixed-frequency, spread-spectrum in smaller 2-mm x 3-mm QFN with wettable flanks.

LM20124

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 2.95 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Features Enable, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 5 Iq (typ) (µA) 3500 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 2.95 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1000 Switching frequency (max) (kHz) 1000 Features Enable, Power good, Pre-Bias Start-Up, Synchronous Rectification, Tracking Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 5 Iq (typ) (µA) 3500 Duty cycle (max) (%) 85
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • LM20124-Q1 is AEC-Q100 qualified and manufactured on an Automotive Grade Flow
  • Input voltage range 2.95V to 5.5V
  • Accurate current limit minimizes inductor size
  • 96% efficiency at 1 MHz switching frequency
  • 32 mΩ integrated FET switches
  • Starts up into pre-biased loads
  • Output voltage tracking
  • Peak current mode control
  • Adjustable output voltage down to 0.8V
  • Adjustable Soft-Start with external capacitor
  • Precision enable pin with hysteresis
  • Integrated OVP, UVLO, power good and thermal shutdown
  • TSSOP 16 pin exposed pad package

All trademarks are the property of their respective owners.

  • LM20124-Q1 is AEC-Q100 qualified and manufactured on an Automotive Grade Flow
  • Input voltage range 2.95V to 5.5V
  • Accurate current limit minimizes inductor size
  • 96% efficiency at 1 MHz switching frequency
  • 32 mΩ integrated FET switches
  • Starts up into pre-biased loads
  • Output voltage tracking
  • Peak current mode control
  • Adjustable output voltage down to 0.8V
  • Adjustable Soft-Start with external capacitor
  • Precision enable pin with hysteresis
  • Integrated OVP, UVLO, power good and thermal shutdown
  • TSSOP 16 pin exposed pad package

All trademarks are the property of their respective owners.

The LM20124 is a full featured 1 MHz synchronous buck regulator capable of delivering up to 4A of continuous output current. The current mode control loop can be compensated to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of use. The device is optimized to work over the input voltage range of 2.95V to 5.5V making it suited for a wide variety of low voltage systems.

The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn-on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit. Fault detection and supply sequencing is possible with the integrated power good circuit.

The LM20124 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20124 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.

The LM20124 is offered in a 16-pin TSSOP package with an exposed pad that can be soldered to the PCB, eliminating the need for bulky heatsinks.

The LM20124 is a full featured 1 MHz synchronous buck regulator capable of delivering up to 4A of continuous output current. The current mode control loop can be compensated to be stable with virtually any type of output capacitor. For most cases, compensating the device only requires two external components, providing maximum flexibility and ease of use. The device is optimized to work over the input voltage range of 2.95V to 5.5V making it suited for a wide variety of low voltage systems.

The device features internal over voltage protection (OVP) and over current protection (OCP) circuits for increased system reliability. A precision enable pin and integrated UVLO allows the turn-on of the device to be tightly controlled and sequenced. Start-up inrush currents are limited by both an internally fixed and externally adjustable Soft-Start circuit. Fault detection and supply sequencing is possible with the integrated power good circuit.

The LM20124 is designed to work well in multi-rail power supply architectures. The output voltage of the device can be configured to track a higher voltage rail using the SS/TRK pin. If the output of the LM20124 is pre-biased at startup it will not sink current to pull the output low until the internal soft-start ramp exceeds the voltage at the feedback pin.

The LM20124 is offered in a 16-pin TSSOP package with an exposed pad that can be soldered to the PCB, eliminating the need for bulky heatsinks.
filter 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
6개 모두 보기
유형 직함 날짜
* Data sheet LM20124/LM20124Q 4A, 1MHz PowerWise ® Synchronous Buck Regulator datasheet (Rev. F) 2013/03/27
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
EVM User's guide AN-1654 LM20124 Evaluation Board (Rev. B) 2013/05/03
Application note AN-1751 4A LM20k Reference Designs (Rev. A) 2013/05/03
Application note AN-2077 LM20k POL Module (Rev. A) 2013/05/03
User guide High Efficiency Portable Media Player (PMP) Dock Station User Guide 2012/01/27

설계 및 개발

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

CAD/CAE 기호

High Efficiency Portable Media Player (PMP) Dock Station CAD Files

SNLC003.ZIP (125 KB)
다운로드
계산 툴

LM20124DESIGN-CALC — LM20124 설계 스프레드시트

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

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포럼 주제 모두 보기(영문)

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