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

TPS54494

활성

통합 FET를 지원하는 4A 듀얼 채널 동기형 스텝 다운 스위처

지금 주문
데이터 시트

TPS54494

활성
데이터 시트 지금 주문

제품 상세 정보

Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Fixed, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 1200 Duty cycle (max) (%) 85
Rating Catalog Operating temperature range (°C) -40 to 85 Topology Buck Type Converter Iout (max) (A) 4 Vin (min) (V) 4.5 Vin (max) (V) 18 Switching frequency (min) (kHz) 700 Switching frequency (max) (kHz) 700 Features Enable, Light Load Efficiency, Power good, Soft Start Fixed, Synchronous Rectification Control mode D-CAP2 Vout (min) (V) 0.76 Vout (max) (V) 7 Iq (typ) (µA) 1200 Duty cycle (max) (%) 85
HTSSOP (PWP) 16 32 mm² 5 x 6.4 VQFN (RSA) 16 16 mm² 4 x 4
  • D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop Compensation
    • Compatible with Ceramic Output Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range: 0.76V to 7V
  • Highly Efficient Integrated FETs Optimized
    for Low Duty Cycle Applications
    • 90 mΩ (High Side) and 60 mΩ
      (Low Side)
  • High Initial Reference Accuracy
  • 4A CH1 / 2A CH2 Continuous Load Current
  • Low-Side rDS(on) Loss-Less
    Current Sensing
  • Fixed Soft Start : 1 ms
  • Non-Sinking Pre-Biased Soft Start
  • Powergood
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limit Control
  • OCL/UVLO/TSD Protections
  • Hiccup Timer for Overload Protection
  • Adaptive Gate Drivers with Integrated
    Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated
    rDS(on) with 4000ppm/°C
  • 16-Pin HTSSOP, 16-Pin VQFN
  • Auto-Skip Eco-mode　for High Efficiency at Light Load
  • D-CAP2 Control Mode
    • Fast Transient Response
    • No External Parts Required For Loop Compensation
    • Compatible with Ceramic Output Capacitors
  • Wide Input Voltage Range : 4.5 V to 18 V
  • Output Voltage Range: 0.76V to 7V
  • Highly Efficient Integrated FETs Optimized
    for Low Duty Cycle Applications
    • 90 mΩ (High Side) and 60 mΩ
      (Low Side)
  • High Initial Reference Accuracy
  • 4A CH1 / 2A CH2 Continuous Load Current
  • Low-Side rDS(on) Loss-Less
    Current Sensing
  • Fixed Soft Start : 1 ms
  • Non-Sinking Pre-Biased Soft Start
  • Powergood
  • 700 kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Limit Control
  • OCL/UVLO/TSD Protections
  • Hiccup Timer for Overload Protection
  • Adaptive Gate Drivers with Integrated
    Boost PMOS Switch
  • OCP Constant Due To Thermally Compensated
    rDS(on) with 4000ppm/°C
  • 16-Pin HTSSOP, 16-Pin VQFN
  • Auto-Skip Eco-mode　for High Efficiency at Light Load

The TPS54494 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54494 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54494 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54494 to maintain high efficiency during lighter load conditions. The TPS54494 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS54494 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) and 4 mm × 4 mm 16-pin VQFN (RSA) package, and is specified for an ambient temperature range from –40°C to 85°C.

The TPS54494 is a dual, adaptive on-time D-CAP2™ mode synchronous buck converter. The TPS54494 enables system designers to complete the suite of various end equipment’s power bus regulators with a cost effective, low component count, and low standby current solution. The main control loops of the TPS54494 use the D-CAP2™ mode control which provides a very fast transient response with no external compensation components. The adaptive on-time control supports seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54494 to maintain high efficiency during lighter load conditions. The TPS54494 is able to adapt to both low equivalent series resistance (ESR) output capacitors such as POSCAP or SP-CAP, and ultra-low ESR, ceramic capacitors. The device provides convenient and efficient operation with input voltages from 4.5V to 18V.

The TPS54494 is available in a 4.4 mm × 5 mm 16-pin TSSOP (PWP) and 4 mm × 4 mm 16-pin VQFN (RSA) package, and is specified for an ambient temperature range from –40°C to 85°C.
filter 기타 AC/DC 및 DC/DC 컨버터(통합 FET) 찾기
다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치와 동일한 기능을 지원하는 핀 대 핀
TPS54394 활성 통합 FET를 지원하는 3A 듀얼 채널 동기 스텝다운 스위처 This is a dual-channel 3-A / 3-A output product.
비교 대상 장치와 유사한 기능
TPS54495 활성 4.5V~18V 입력, 듀얼 4A/2A 출력, 동기형 스텝다운 컨버터 This is a dual-channel 2-A / 4-A output product with adjustable soft start.
TPS564242 활성 SOT-563 패키지의 3V~16V 입력 전압, 4A 에코 모드, 동기 벅 컨버터 This product has a smaller package with 1.2MHz switching frequency
TPS564252 활성 3V~17V 입력 전압, 4A ECO 모드, 동기식 벅 컨버터 This product has smaller package and power good feature

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
3개 모두 보기
유형 직함 날짜
* Data sheet 4A/2A Dual Channel Synchronous Step-Down Switcher with Integrated FET, TPS54494 datasheet (Rev. B) 2013/08/20
EVM User's guide TPS54494 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/08/30
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25

설계 및 개발

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

평가 보드

TPS54494EVM-057 — TPS54494 평가 모듈

The Texas Instruments TPS54494EVM-057 evaluation module (EVM) helps designers evaluate the performance of the TPS54494 4A Dual Channel Synchronous Step-Down Switcher with Integrated FET.
사용 설명서: PDF | HTML
TI.com에서 구매 불가
시뮬레이션 모델

TPS54494 PSpice Transient Model (Rev. A)

SLVM612A.ZIP (361 KB) - PSpice Model
다운로드
패키지 핀 CAD 기호, 풋프린트 및 3D 모델
HTSSOP (PWP) 16 Ultra Librarian
VQFN (RSA) 16 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

TI 엔지니어의 기술 지원을 받을 수 있는 TI E2E™ 포럼

포럼 주제 모두 보기(영문)

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