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

LM3674

활성

SOT 23-5의 2MHz, 600mA 스텝다운 DC-DC 컨버터

지금 주문
데이터 시트

LM3674

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -30 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 2600 Features Enable, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.1 Vout (max) (V) 3.3 Iq (typ) (µA) 300 Duty cycle (max) (%) 100
Rating Catalog Operating temperature range (°C) -30 to 85 Topology Buck Type Converter Iout (max) (A) 0.6 Vin (min) (V) 2.7 Vin (max) (V) 5.5 Switching frequency (min) (kHz) 1600 Switching frequency (max) (kHz) 2600 Features Enable, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 1.1 Vout (max) (V) 3.3 Iq (typ) (µA) 300 Duty cycle (max) (%) 100
SOT-23 (DBV) 5 8.12 mm² 2.9 x 2.8
  • Input Voltage Range From 2.7 V to 5.5 V
  • 600-mA Maximum Load Current
  • Available in Fixed and Adjustable Output Voltages
    Ranging From 1 V to 3.3 V
  • Operates From a Single Li-Ion Cell Battery
  • Internal Synchronous Rectification for High
    Efficiency
  • Internal Soft-Start
  • 0.01-µA Typical Shutdown Current
  • 2-MHz PWM Fixed Switching Frequency (typical)
  • Current Overload Protection and Thermal
    Shutdown Protection
  • Input Voltage Range From 2.7 V to 5.5 V
  • 600-mA Maximum Load Current
  • Available in Fixed and Adjustable Output Voltages
    Ranging From 1 V to 3.3 V
  • Operates From a Single Li-Ion Cell Battery
  • Internal Synchronous Rectification for High
    Efficiency
  • Internal Soft-Start
  • 0.01-µA Typical Shutdown Current
  • 2-MHz PWM Fixed Switching Frequency (typical)
  • Current Overload Protection and Thermal
    Shutdown Protection

The LM3674 step-down DC-DC converter is optimized for powering low-voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 600-mA load current over the entire input voltage range. There are several fixed output voltages and adjustable output voltage versions.

The device offers superior features and performance for mobile phones and similar portable systems. During the Pulse Width Modulation (PWM) mode, the device operates at a fixed-frequency of 2 MHz (typical). Internal synchronous rectification provides high efficiency during the PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typical).

The LM3674 is available in a 5-pin SOT-23 package. A high switching frequency of 2 MHz (typical) allows use of only three tiny external surface-mount components, an inductor and two ceramic capacitors.

The LM3674 step-down DC-DC converter is optimized for powering low-voltage circuits from a single Li-Ion cell battery and input voltage rails from 2.7 V to 5.5 V. It provides up to 600-mA load current over the entire input voltage range. There are several fixed output voltages and adjustable output voltage versions.

The device offers superior features and performance for mobile phones and similar portable systems. During the Pulse Width Modulation (PWM) mode, the device operates at a fixed-frequency of 2 MHz (typical). Internal synchronous rectification provides high efficiency during the PWM mode operation. In shutdown mode, the device turns off and reduces battery consumption to 0.01 µA (typical).

The LM3674 is available in a 5-pin SOT-23 package. A high switching frequency of 2 MHz (typical) allows use of only three tiny external surface-mount components, an inductor and two ceramic capacitors.

filter 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
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관심 가지실만한 유사 제품

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TPS62671 활성 500mA, 6MHz 고효율 스텝다운 컨버터, 출력 전압 1.8V Simple low-noise DC/DC converter in CSP at <12-mm² total BOM size.
TPS82671 활성 MicroSiP™ 패키지, 600mA 완전 통합형 저잡음 스텝다운 컨버터 모듈 Module with smaller BOM size and integrated inductor, input and output capacitors.

기술 자료

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5개 모두 보기
유형 직함 날짜
* Data sheet LM3674 2-MHz, 600-mA Step-Down DC-DC Converter in SOT-23 datasheet (Rev. G) PDF | HTML 2015/04/24
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024/04/30
Application note Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) PDF | HTML 2022/05/23
Design guide 2-Port USB 3.0 Hub (TIDA-00287) 2014/08/01
EVM User's guide AN-1427 LM3674 Evaluation Board (Rev. K) 2013/04/30

설계 및 개발

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

평가 보드

LM3674MF-1.8EV — SOT 23-5의 2MHz, 600mA 스텝다운 DC-DC 컨버터

The LM3674 evaluation board is a working demonstration of a step down DC-DC converter. The application note contains information about the evaluation board. The LM3674 step-down DC-DC converter is optimized for powering low voltage circuits from a single Li-Ion cell battery and input voltage rails (...)

사용 설명서: PDF
TI.com에서 구매 불가
레퍼런스 디자인

TIDA-00287 — 2포트 USB 3.0 허브 레퍼런스 디자인

This verified reference design is a two-port, USB 3.0 compliant hub.  It provides simultaneous SuperSpeed and high-speed/full-speed connections on the upstream port and provides SuperSpeed, high-speed, full-speed, or low-speed connections on the downstream ports.

The hub design provides power (...)

Design guide: PDF
회로도: PDF
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
SOT-23 (DBV) 5 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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