전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM2734Z

활성

3~20V 입력, 1A, 고주파 스텝다운 컨버터(저부하 효율성)

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS62932 활성 SOT-583 패키지의 3.8V~30V 입력, 2A, 200kHz~2.2MHz, 저 IQ 동기 벅 컨버터 Higher efficiency with lower IQ and wider VIN in a smaller package.

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 3 Vin (max) (V) 20 Switching frequency (min) (kHz) 2200 Switching frequency (max) (kHz) 3600 Features Enable, Light Load Efficiency, Pre-Bias Start-Up Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 18 Iq (typ) (µA) 1500 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1 Vin (min) (V) 3 Vin (max) (V) 20 Switching frequency (min) (kHz) 2200 Switching frequency (max) (kHz) 3600 Features Enable, Light Load Efficiency, Pre-Bias Start-Up Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 18 Iq (typ) (µA) 1500 Duty cycle (max) (%) 85
SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8 WSON (NGG) 6 9 mm² 3 x 3
  • Qualified for Automotive Applications
  • 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 C6
  • 6-pin SOT Package, or 6-Pin WSON Package
  • 3.0-V to 20-V Input Voltage Range
  • 0.8-V to 18-V Output Voltage Range
  • 1-A Output Current
  • 3-MHz Switching Frequency
  • 300-mΩ NMOS Switch
  • 30-nA Shutdown Current
  • 0.8-V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • Thermal Shutdown
  • Qualified for Automotive Applications
  • 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 C6
  • 6-pin SOT Package, or 6-Pin WSON Package
  • 3.0-V to 20-V Input Voltage Range
  • 0.8-V to 18-V Output Voltage Range
  • 1-A Output Current
  • 3-MHz Switching Frequency
  • 300-mΩ NMOS Switch
  • 30-nA Shutdown Current
  • 0.8-V, 2% Internal Voltage Reference
  • Internal Soft-Start
  • Current-Mode, PWM Operation
  • Thermal Shutdown

The LM2734Z regulator is a monolithic, high-frequency, PWM step-down DC–DC converter assembled in a thick 6-pin SOT and a WSON non-pullback package. The device provides 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 and online design support through WEBENCH™, the LM2734Z is easy to use. The ability to drive 1-A loads with an internal 300-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world class control circuitry allows for ON-times as low as 13 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 20-V input operating range down to the minimum output voltage of 0.8 V. Switching frequency is internally set to 3 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 85% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2734Z uses 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, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.

The LM2734Z regulator is a monolithic, high-frequency, PWM step-down DC–DC converter assembled in a thick 6-pin SOT and a WSON non-pullback package. The device provides 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 and online design support through WEBENCH™, the LM2734Z is easy to use. The ability to drive 1-A loads with an internal 300-mΩ NMOS switch using state-of-the-art 0.5-µm BiCMOS technology results in the best power density available. The world class control circuitry allows for ON-times as low as 13 ns, thus supporting exceptionally high-frequency conversion over the entire 3-V to 20-V input operating range down to the minimum output voltage of 0.8 V. Switching frequency is internally set to 3 MHz, allowing the use of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is very high, efficiencies up to 85% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 30 nA. The LM2734Z uses 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, pulse-by-pulse current limit, thermal shutdown, and output overvoltage protection.

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관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
LM2734Z-Q1 활성 저부하 효율성을 제공하는 3~20V 입력, 1A, 고주파 오토모티브 스텝다운 컨버터 Auto-qualified version

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
1개 모두 보기
유형 직함 날짜
* Data sheet LM2734Z/-Q1 Thin SOT 1-A Load Step-Down DC-DC Regulator datasheet (Rev. F) PDF | HTML 2016/01/06

설계 및 개발

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

평가 보드

LM2734ZEVAL — 씬 SOT23 1A 부하 스텝다운 DC-DC 레귤레이터 평가 모듈

The LM2734 demo board is configured to convert 5V input to 1.8V output at 1A load current using the LM2734X 1.6MHz or the LM2734Y 550kHz step down DC-DC regulator. The tiny low profile thin SOT23 package allows the demo board to be manufactured using less than 1 square inch of a 4-layer printed (...)

사용 설명서: PDF | HTML
TI.com에서 구매 불가
패키지 CAD 기호, 풋프린트 및 3D 모델
SOT-23-THN (DDC) 6 Ultra Librarian
WSON (NGG) 6 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

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