전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM2833

활성

1.5MHz/3MHz 3.0A 스텝다운 DC-DC 스위칭 레귤레이터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS628503-Q1 활성 2.7V~6V, 3A 차량용 스텝다운 컨버터(SOT583 패키지) This product has higher efficiency, lower EMI and a smaller solution size.

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 3000 Features Enable, Light Load Efficiency, Light load efficiency Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 4.5 Iq (typ) (µA) 3200 Duty cycle (max) (%) 95
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 3 Vin (min) (V) 3 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1500 Switching frequency (max) (kHz) 3000 Features Enable, Light Load Efficiency, Light load efficiency Control mode current mode Vout (min) (V) 0.6 Vout (max) (V) 4.5 Iq (typ) (µA) 3200 Duty cycle (max) (%) 95
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9 WSON (DSC) 10 9 mm² 3 x 3
  • Input Voltage Range of 3.0V to 5.5V
  • Output Voltage Range of 0.6V to 4.5V
  • Tiny MSOP-PowerPAD 10 or WSON-10 Package
  • 3.0A Steady-State Output Current
  • High Switching Frequencies
    • 1.5MHz (LM2833X)
    • 3.0MHz (LM2833Z)
  • Enable Pin
  • 56mΩ PMOS Switch
  • 0.6V, 2% Internal Voltage Reference Over Line and Temperature
  • Internal Soft-Start
  • Internally Compensated Peak Current-Mode Control
  • Cycle-by-Cycle Current Limit and Thermal Shutdown
  • Frequency Foldback Protection
  • Input Voltage UVLO (Under-Voltage Lockout)
  • Output Over-Voltage Protection

All trademarks are the property of their respective owners.

  • Input Voltage Range of 3.0V to 5.5V
  • Output Voltage Range of 0.6V to 4.5V
  • Tiny MSOP-PowerPAD 10 or WSON-10 Package
  • 3.0A Steady-State Output Current
  • High Switching Frequencies
    • 1.5MHz (LM2833X)
    • 3.0MHz (LM2833Z)
  • Enable Pin
  • 56mΩ PMOS Switch
  • 0.6V, 2% Internal Voltage Reference Over Line and Temperature
  • Internal Soft-Start
  • Internally Compensated Peak Current-Mode Control
  • Cycle-by-Cycle Current Limit and Thermal Shutdown
  • Frequency Foldback Protection
  • Input Voltage UVLO (Under-Voltage Lockout)
  • Output Over-Voltage Protection

All trademarks are the property of their respective owners.

The LM2833 regulator is a monolithic, high frequency, PWM step-down DC/DC converter available in a 10-pin WSON or MSOP-PowerPAD package. It contains all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components, the LM2833 is easy to use. The ability to drive 3.0A loads with an internal 56 mΩ PMOS switch using state-of-the-art 0.5µm BiCMOS technology results in the best power density available. The world-class control circuitry allows on-times as low as 30ns, thus supporting exceptionally high frequency conversion over the entire 3V to 5.5V input operating range down to the minimum output voltage of 0.6V. Switching frequency is internally set to 1.5MHz or 3.0MHz, allowing the use of extremely small surface mount inductors and capacitors. Even though the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 300nA. The LM2833 utilizes peak current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, cycle-by-cycle current limit, frequency foldback, thermal shutdown, and output over-voltage protection.

The LM2833 regulator is a monolithic, high frequency, PWM step-down DC/DC converter available in a 10-pin WSON or MSOP-PowerPAD package. It contains all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components, the LM2833 is easy to use. The ability to drive 3.0A loads with an internal 56 mΩ PMOS switch using state-of-the-art 0.5µm BiCMOS technology results in the best power density available. The world-class control circuitry allows on-times as low as 30ns, thus supporting exceptionally high frequency conversion over the entire 3V to 5.5V input operating range down to the minimum output voltage of 0.6V. Switching frequency is internally set to 1.5MHz or 3.0MHz, allowing the use of extremely small surface mount inductors and capacitors. Even though the operating frequency is high, efficiencies up to 93% are easy to achieve. External shutdown is included, featuring an ultra-low stand-by current of 300nA. The LM2833 utilizes peak current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, cycle-by-cycle current limit, frequency foldback, thermal shutdown, and output over-voltage protection.

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
6개 모두 보기
유형 직함 날짜
* Data sheet LM2833 1.5MHz/3MHz 3.0A Step-Down DC-DC Switching Regulator datasheet (Rev. E) 2013/04/03
EVM User's guide AN-1843 LM2833X LLP Demo Board (Rev. B) 2013/05/26
EVM User's guide AN-1717 LM2833X eMSOP Demo Board (Rev. C) 2013/04/29
EVM User's guide AN-1844 LM2833Z eMSOP Demo Board (Rev. B) 2013/04/25
EVM User's guide AN-1845 LM2833Z LLP Demo Board (Rev. B) 2013/04/25
Application note AN-1973 Benefits and Challenges of High-Frequency Regulators (Rev. A) 2013/04/23

설계 및 개발

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

평가 보드

LM2833XSDEVAL — LM2833X LLP - 1.5MHz 3.0A 스텝다운 DC-DC 스위칭 레귤레이터 평가 모듈

The LM2833X LLP Demo Board is designed to demonstrate the capabilities of the LM2833X 1.5MHz switching regulator in the LLP-10 package.

The demo board is configured to provide an output of 1.2V at up to 3A from an input voltage range of 3V to 5.5V. The board is thermally optimized with the small (...)

사용 설명서: PDF
TI.com에서 구매 불가
패키지 CAD 기호, 풋프린트 및 3D 모델
HVSSOP (DGQ) 10 Ultra Librarian
WSON (DSC) 10 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

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

콘텐츠는 TI 및 커뮤니티 기고자에 의해 "있는 그대로" 제공되며 TI의 사양으로 간주되지 않습니다. 사용 약관을 참조하십시오.

품질, 패키징, TI에서 주문하는 데 대한 질문이 있다면 TI 지원을 방문하세요. ​​​​​​​​​​​​​​

동영상