홈 전원 관리 AC/DC & DC/DC converters (integrated FET)
홈
전원 관리
AC/DC & DC/DC converters (integrated FET)

LM2650

활성

동기 스텝다운 DC/DC 컨버터

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS563211 활성 SOT583에서 1% 정확도, PG/SS 및 PFM/강제-PWM을 지원하는 4.2V~18V, 3A, 동기 벅 컨버터 Higher efficiency with lower external component count in a smaller package.

LM2650

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 105 Features Frequency synchronization Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 16 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.004
Iout (max) (A) 3 Vin (min) (V) 4.5 Vin (max) (V) 18 Topology Buck Type Converter Switching frequency (min) (kHz) 75 Switching frequency (max) (kHz) 105 Features Frequency synchronization Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 16 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.004
SOIC (DW) 24 159.65 mm² 15.5 x 10.3
  • Ultra High Efficiencies (95% possible)
  • High Efficiency Over a 3A to Milliamperes Load Range
  • Synchronous Switching of Internal NMOS Power FETs
  • Wide Input Voltage Range (4.5V to 18V)
  • Output Voltage Adjustable from 1.5V to 16V
  • Automatic Low-Power Sleep Mode
  • Logic-Controlled Micropower Shutdown (IQSD ≤ 25 µA)
  • Frequency Adjustable up to 300 kHz
  • Frequency Synchronization with External Signal
  • Programmable Soft-Start
  • Short-Circuit Current Limiting
  • Thermal Shutdown
  • Available in 24-lead Small-Outline Package
  • Ultra High Efficiencies (95% possible)
  • High Efficiency Over a 3A to Milliamperes Load Range
  • Synchronous Switching of Internal NMOS Power FETs
  • Wide Input Voltage Range (4.5V to 18V)
  • Output Voltage Adjustable from 1.5V to 16V
  • Automatic Low-Power Sleep Mode
  • Logic-Controlled Micropower Shutdown (IQSD ≤ 25 µA)
  • Frequency Adjustable up to 300 kHz
  • Frequency Synchronization with External Signal
  • Programmable Soft-Start
  • Short-Circuit Current Limiting
  • Thermal Shutdown
  • Available in 24-lead Small-Outline Package

The LM2650 is a step-down DC/DC converter featuring high efficiency over a 3A to milliamperes load range. This feature makes the LM2650 an ideal fit in battery-powered applications that demand long battery life in both run and standby modes.

The LM2650 also features a logic-controlled shutdown mode in which it draws at most 25μA from the input power supply.

The LM2650 employs a fixed-frequency pulse-width modulation (PWM) and synchronous rectification to achieve very high efficiencies. In many applications, efficiencies reach 95%+ for loads around 1A and exceed 90% for moderate to heavy loads from 0.2A to 2A.

A low-power hysteretic or "sleep" mode keeps efficiencies high at light loads. The LM2650 enters and exits sleep mode automatically as the load crosses "sleep in" and "sleep out" thresholds. The LM2650 provides nodes for programming both thresholds via external resistors. A logic input allows the user to override the automatic sleep feature and keep the LM2650 in PWM mode regardless of the load level.

An optional soft-start feature limits current surges from the input power supply at start up and provides a simple means of sequencing multiple power supplies.

The LM2650 is a step-down DC/DC converter featuring high efficiency over a 3A to milliamperes load range. This feature makes the LM2650 an ideal fit in battery-powered applications that demand long battery life in both run and standby modes.

The LM2650 also features a logic-controlled shutdown mode in which it draws at most 25μA from the input power supply.

The LM2650 employs a fixed-frequency pulse-width modulation (PWM) and synchronous rectification to achieve very high efficiencies. In many applications, efficiencies reach 95%+ for loads around 1A and exceed 90% for moderate to heavy loads from 0.2A to 2A.

A low-power hysteretic or "sleep" mode keeps efficiencies high at light loads. The LM2650 enters and exits sleep mode automatically as the load crosses "sleep in" and "sleep out" thresholds. The LM2650 provides nodes for programming both thresholds via external resistors. A logic input allows the user to override the automatic sleep feature and keep the LM2650 in PWM mode regardless of the load level.

An optional soft-start feature limits current surges from the input power supply at start up and provides a simple means of sequencing multiple power supplies.
open-in-new 기타 AC/DC & DC/DC converters (integrated FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

기술 문서

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
모두 보기2
유형 직함 날짜
* Data sheet LM2650 Synchronous Step-Down DC/DC Converter datasheet (Rev. C) 2013/04/03
Application note AN-1071 Information About the LM2650 Evaluation Board Rev. 1 (Rev. D) 2013/04/29

설계 및 개발

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

패키지 핀 다운로드
SOIC (DW) 24 옵션 보기
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

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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