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

LM2653

활성

1.5A 고효율 동기식 스위칭 레귤레이터

지금 주문
데이터시트

이 제품의 최신 버전이 있습니다

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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.

LM2653

활성
데이터시트 지금 주문

제품 상세 정보

Iout (max) (A) 1.5 Vin (min) (V) 4 Vin (max) (V) 14 Topology Buck Type Converter 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 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0017
Iout (max) (A) 1.5 Vin (min) (V) 4 Vin (max) (V) 14 Topology Buck Type Converter 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 Rating Catalog Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.0017
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.

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기술 문서

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모두 보기2
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

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패키지 핀 다운로드
TSSOP (PW) 16 옵션 보기
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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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포럼 주제 모두 보기(영문)

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