전력 관리 DC/DC switching regulators DC/DC converters

TPS53311

활성

Eco-Mode 및 부드러운 PWM을 지원하는 2.9V~6V 입력, 3A 동기형 스텝다운 컨버터

이 제품의 최신 버전이 있습니다

open-in-new 대안 비교
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPSM82813 활성 선택적 주파수 동기화, 조정 가능한 소프트 시작 및 추적 기능을 갖춘 6V 3A 스텝다운 모듈 Module with integrated inductor with or without spread spectrum

제품 상세 정보

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.9 Vout (max) (V) 4.2 Vout (min) (V) 0.6 Features Enable, Light load efficiency, Output discharge, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00032 Duty cycle (max) (%) 99
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.9 Vout (max) (V) 4.2 Vout (min) (V) 0.6 Features Enable, Light load efficiency, Output discharge, Phase Interleaving, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.00032 Duty cycle (max) (%) 99
VQFN (RGT) 16 9 mm² 3 x 3
  • 95.5% Maximum Efficiency
  • Continuous 3-A Output Current
  • Supports All MLCC Output Capacitor
  • SmoothPWM™ Auto-Skip Eco-mode™ for Light-Load Efficiency
  • Voltage Mode Control
  • Supports Master-Slave Interleaved Operation
  • Synchronization up to ±20% of Nominal Frequency
  • Conversion Voltage Range From 2.9 V to 6 V
  • Soft-Stop Output Discharge During Disable
  • Adjustable Output Voltage Ranging From 0.6 V to 0.84 V × VIN
  • Overcurrent, Overvoltage, and Overtemperature Protection
  • Small, 3 mm × 3 mm, 16-Pin VQFN Package
  • Open-Drain Power Good Indication
  • Internal Boot Strap Switch
  • Low RDS(on), 24 mΩ With 3.3-V Input and 19-mΩ With 5-V Input
  • Supports Prebias Start-Up Functionality
  • 95.5% Maximum Efficiency
  • Continuous 3-A Output Current
  • Supports All MLCC Output Capacitor
  • SmoothPWM™ Auto-Skip Eco-mode™ for Light-Load Efficiency
  • Voltage Mode Control
  • Supports Master-Slave Interleaved Operation
  • Synchronization up to ±20% of Nominal Frequency
  • Conversion Voltage Range From 2.9 V to 6 V
  • Soft-Stop Output Discharge During Disable
  • Adjustable Output Voltage Ranging From 0.6 V to 0.84 V × VIN
  • Overcurrent, Overvoltage, and Overtemperature Protection
  • Small, 3 mm × 3 mm, 16-Pin VQFN Package
  • Open-Drain Power Good Indication
  • Internal Boot Strap Switch
  • Low RDS(on), 24 mΩ With 3.3-V Input and 19-mΩ With 5-V Input
  • Supports Prebias Start-Up Functionality

The TPS53311 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200 mm2 of PCB area. Due to the low RDS(on) and TI Proprietary SmoothPWM™ skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power-dense, 3-A solution.

The TPS53311 features a 1.1-MHz switching frequency, SKIP mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V, and output voltage is adjustable from 0.6 V to 0.84 V × VIN.

The TPS53311 is available in the 3 mm × 3 mm 16-pin VQFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

The TPS53311 provides a fully integrated 3-V to 5-V VIN integrated synchronous FET converter solution with 16 total components, in 200 mm2 of PCB area. Due to the low RDS(on) and TI Proprietary SmoothPWM™ skip mode of operation, it enables 95.5% peak efficiency, and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power-dense, 3-A solution.

The TPS53311 features a 1.1-MHz switching frequency, SKIP mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V, and output voltage is adjustable from 0.6 V to 0.84 V × VIN.

The TPS53311 is available in the 3 mm × 3 mm 16-pin VQFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하세요.
4개 모두 보기
상위 문서 유형 직함 형식 옵션 날짜
* Data sheet TPS53311 3-A Step-Down Regulator With Integrated Switcher datasheet (Rev. B) PDF | HTML 2016/09/27
Selection guide Power Management Guide 2018 (Rev. R) 2018/06/25
Application note Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev 2017/01/25
EVM User's guide Using the TPS53311EVM-561, a 3-A Eco-mode(TM) Integrated Switcher w/Mastr-Slave (Rev. A) 2010/11/11

설계 및 개발

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

평가 보드

TPS53311EVM-561 — TPS53311 동기 스텝다운 DCDC 컨버터용 평가 모듈

The TPS53311EVM-561 is a fully assembled and tested circuit for evaluating the TPS53311 Synchronous Step Down DC/DC Converter.
사용 설명서: PDF
TI.com에서 구매할 수 없음
시뮬레이션 모델

TPS53311 PSpice Average Model

SLIM226.ZIP (62 KB) - PSpice Model
계산 툴

SLUC263 Type III Compensation Calculation Tool

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RGT) 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

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지원 및 교육

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