전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

LM2653

활성

1.5A 고효율 동기식 스위칭 레귤레이터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
비교 대상 장치와 유사한 기능
TPS562211 활성 SOT583에서 1% 정확도, PG/SS 및 PFM/강제-PWM을 지원하는 4.2V~18V, 2A, 동기 벅 컨버터 Higher efficiency with lower external component count in a smaller package.

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 4 Vin (max) (V) 14 Switching frequency (min) (kHz) 255 Switching frequency (max) (kHz) 345 Features Power good Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 5 Iq (typ) (µA) 1700 Duty cycle (max) (%) 95
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 1.5 Vin (min) (V) 4 Vin (max) (V) 14 Switching frequency (min) (kHz) 255 Switching frequency (max) (kHz) 345 Features Power good Control mode Voltage mode Vout (min) (V) 1.5 Vout (max) (V) 5 Iq (typ) (µA) 1700 Duty cycle (max) (%) 95
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Efficiency up to 97%
  • 4V to 14V Input Voltage Range
  • 1.5V to 5.0V Adjustable Output Voltage
  • 0.1Ω Switch On Resistance
  • 300 kHz Fixed Frequency Internal Oscillator
  • 7 μA Shutdown Current
  • Patented Current Sensing for Current Mode Control
  • Input Undervoltage Lockout
  • Output Overvoltage Shutdown Protection
  • Output Undervoltage Shutdown Protection
  • Adjustable Soft-Start
  • Adjustable PGOOD Delay
  • Current Limit and Thermal Shutdown

All trademarks are the property of their respective owners.

  • Efficiency up to 97%
  • 4V to 14V Input Voltage Range
  • 1.5V to 5.0V Adjustable Output Voltage
  • 0.1Ω Switch On Resistance
  • 300 kHz Fixed Frequency Internal Oscillator
  • 7 μA Shutdown Current
  • Patented Current Sensing for Current Mode Control
  • Input Undervoltage Lockout
  • Output Overvoltage Shutdown Protection
  • Output Undervoltage Shutdown Protection
  • Adjustable Soft-Start
  • Adjustable PGOOD Delay
  • Current Limit and Thermal Shutdown

All trademarks are the property of their respective owners.

The LM2653 switching regulator provides high efficient power conversion over a 100:1 load range (1.5A to 15 mA). This feature makes the LM2653 an ideal fit in battery-powered applications.

Synchronous rectification is used to achieve up to 97% efficiency. At light loads, the LM2653 enters a low power hysteretic or “sleep” mode to keep the efficiency high. In many applications, the efficiency still exceeds 80% at 15 mA load. A shutdown pin is available to disable the LM2653 and reduce the supply current to 7µA.

All the power, control, and drive functions are integrated within the ICs. The ICs contain patented current sensing circuity for current mode control. This feature eliminates the external current sensing resistor required by other current-mode DC-DC converters.

The ICs have a 300 kHz fixed frequency internal oscillator. The high oscillator frequency allows the use of extremely small, low profile components.

Protection features include thermal shutdown, input undervoltage lockout, adjustable soft-start, cycle by cycle current limit, output overvoltage and undervoltage protections.

The LM2653 switching regulator provides high efficient power conversion over a 100:1 load range (1.5A to 15 mA). This feature makes the LM2653 an ideal fit in battery-powered applications.

Synchronous rectification is used to achieve up to 97% efficiency. At light loads, the LM2653 enters a low power hysteretic or “sleep” mode to keep the efficiency high. In many applications, the efficiency still exceeds 80% at 15 mA load. A shutdown pin is available to disable the LM2653 and reduce the supply current to 7µA.

All the power, control, and drive functions are integrated within the ICs. The ICs contain patented current sensing circuity for current mode control. This feature eliminates the external current sensing resistor required by other current-mode DC-DC converters.

The ICs have a 300 kHz fixed frequency internal oscillator. The high oscillator frequency allows the use of extremely small, low profile components.

Protection features include thermal shutdown, input undervoltage lockout, adjustable soft-start, cycle by cycle current limit, output overvoltage and undervoltage protections.

다운로드 스크립트와 함께 비디오 보기 동영상

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
2개 모두 보기
유형 직함 날짜
* Data sheet LM2653 1.5A High Efficiency Synchronous Switching Regulator datasheet (Rev. E) 2013/04/03
User guide LM2653 Step-Down Converter Evaluation Module User's Guide (Rev. C) PDF | HTML 2021/12/20

설계 및 개발

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

패키지 CAD 기호, 풋프린트 및 3D 모델
TSSOP (PW) 16 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