전력 관리 DC/DC switching regulators DC/DC converters

TPS54424

활성

4.5V~17V 입력, 전류 모드, 4A 동기 SWIFT™ 스텝다운 컨버터

제품 상세 정보

Rating Catalog Topology Buck Iout (max) (A) 4 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.6 EMI features Low parasitic Hotrod packaging Features Enable, Frequency synchronization, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00058 Duty cycle (max) (%) 98
Rating Catalog Topology Buck Iout (max) (A) 4 Vin (max) (V) 17 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.6 EMI features Low parasitic Hotrod packaging Features Enable, Frequency synchronization, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, Tracking Control mode current mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00058 Duty cycle (max) (%) 98
VQFN-HR (RNV) 18 12.25 mm² 3.5 x 3.5
  • Small 3.5-mm × 3.5-mm HotRod™ QFN Package
  • Integrated 14.1-mΩ and 6.1-mΩ MOSFETs
  • Peak Current Mode Control With Fast Transient Response
  • 200-kHz to 1.6-MHz Fixed Switching Frequency
  • Synchronizes to External Clock
  • 0.6-V Voltage Reference ±0.85% Over Temperature
  • 0.6-V to 12-V Output Voltage Range
  • Hiccup Current Limit
  • Safe Start-Up into Pre-Biased Output Voltage
  • Adjustable Soft Start and Power Sequencing
  • Adjustable Input Undervoltage Lockout
  • 3-µA Shutdown Current
  • Power Good Output Monitor for Undervoltage and Overvoltage
  • Output Overvoltage Protection
  • Non-latch Thermal Shutdown Protection
  • –40°C to 150°C Operating Junction Temperature
  • Create a Custom Design Using the TPS54424 With the WEBENCH® Power Designer
  • Small 3.5-mm × 3.5-mm HotRod™ QFN Package
  • Integrated 14.1-mΩ and 6.1-mΩ MOSFETs
  • Peak Current Mode Control With Fast Transient Response
  • 200-kHz to 1.6-MHz Fixed Switching Frequency
  • Synchronizes to External Clock
  • 0.6-V Voltage Reference ±0.85% Over Temperature
  • 0.6-V to 12-V Output Voltage Range
  • Hiccup Current Limit
  • Safe Start-Up into Pre-Biased Output Voltage
  • Adjustable Soft Start and Power Sequencing
  • Adjustable Input Undervoltage Lockout
  • 3-µA Shutdown Current
  • Power Good Output Monitor for Undervoltage and Overvoltage
  • Output Overvoltage Protection
  • Non-latch Thermal Shutdown Protection
  • –40°C to 150°C Operating Junction Temperature
  • Create a Custom Design Using the TPS54424 With the WEBENCH® Power Designer

The TPS54424 is a full-featured 17-V (19-V maximum), 4-A synchronous step-down DC/DC converter in a 3.5 mm × 3.5 mm HotRod™ QFN package.

The device is optimized for small solution size through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through peak current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor footprint.

The peak current mode control simplifies the loop compensation and provides fast transient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcing current limit protects the device in overload situations. Hiccup limits MOSFET power dissipation if a short circuit or over loading fault persists.

A power good supervisor circuit monitors the regulator output. The PGOOD pin is an open-drain output and goes high impedance when the output voltage is in regulation. An internal deglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.

A dedicated EN pin can be used to control the regulator on/off and adjust the input undervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, which allows operation as either a standalone power supply or in tracking situations.

The TPS54424 is a full-featured 17-V (19-V maximum), 4-A synchronous step-down DC/DC converter in a 3.5 mm × 3.5 mm HotRod™ QFN package.

The device is optimized for small solution size through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through peak current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor footprint.

The peak current mode control simplifies the loop compensation and provides fast transient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcing current limit protects the device in overload situations. Hiccup limits MOSFET power dissipation if a short circuit or over loading fault persists.

A power good supervisor circuit monitors the regulator output. The PGOOD pin is an open-drain output and goes high impedance when the output voltage is in regulation. An internal deglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.

A dedicated EN pin can be used to control the regulator on/off and adjust the input undervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, which allows operation as either a standalone power supply or in tracking situations.

다운로드 스크립트와 함께 비디오 보기 동영상

관심 가지실만한 유사 제품

open-in-new 대안 비교
비교 대상 장치보다 업그레이드된 기능을 지원하는 드롭인 대체품
TPS54824 활성 HotRod™ QFN의 4.5V~17V, 8A 동기 SWIFT™ 벅 컨버터 Pin-to-pin version with 8-A output current.
다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
TPS543320 활성 4V~18V 입력, 3A 동기식 SWIFT™ 스텝다운 컨버터 Higher efficiency in a smaller solution size
비교 대상 장치와 유사한 기능
TPSM84424 활성 콤팩트 7.5x7.5mm 풋프린트 안에 4.5V-17V 입력, 0.6V-10V 출력, 4A 전력 모듈 Module option featuring an integrated inductor.

기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
18개 모두 보기
유형 직함 날짜
* Data sheet TPS54424 4.5-V to 17-V (19-V Maximum) Input, 4-A Synchronous SWIFT™ Step-Down Converter datasheet PDF | HTML 2018/01/23
EVM User's guide TPS54424 SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/09/02
Application note Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) PDF | HTML 2021/07/26
Application note DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) PDF | HTML 2021/05/04
Application note Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) PDF | HTML 2021/04/29
Selection guide Buck Converter Quick Reference Guide (Rev. B) 2021/04/08
Application note Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) PDF | HTML 2020/01/08
Application note Understanding Flip Chip QFN (HotRod) and Standard QFN Performance Differences 2019/07/02
Application note Minimizing Output Ripple During Startup (Rev. A) 2019/05/20
Application note DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems 2018/12/11
Application note Optimizing Layout of the TPS54824 HotRod™ Package for Thermal Performance 2018/11/16
Application note Solve Point-of-Load Power Design Challenges: Single Board Computer Applications 2018/08/24
Application note Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) 2018/06/25
White paper Measuring various types of low-frequency noise in DC/DC switching converters 2018/02/01
Analog Design Journal Reducing noise on the output of a switching regulator 2018/01/04
Application note Minimizing Output Ripple During Startup 2017/06/22
Application note HotRod QFN Application Note 2014/04/09
Application note Ultra Small 5A, Adjustable Output Reference design using TPS54620 2010/05/21

설계 및 개발

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

평가 보드

TPS54424EVM-779 — TPS54424 4A 동기 SWIFT™ 스텝다운 컨버터 평가 모듈

TPS54424EVM-779는 4A 동기 컨버터 EVM(평가 모듈)입니다.  TPS54424은 동기식 벅 컨버터로, 전력 MOSFET를 모두 통합하여 솔루션 크기를 최소화하고 최대 부하에서 고효율을 제공합니다. 고정 주파수 피크 전류 모드 제어는 주기 및 온 타임 지터를 최소화하는 데 사용됩니다. 강제 연속 전도 모드는 낮은 부하에서 스위칭 주파수를 고정하고 낮은 부하에 대한 빠른 과도 응답을 지원합니다.

사용 설명서: PDF | HTML
TI.com에서 구매 불가
시뮬레이션 모델

TPS54424 PSpice Transient Model

SLVMC62.ZIP (93 KB) - PSpice Model
시뮬레이션 모델

TPS54424 TINA-TI Average Reference Design

SLVMCN3.TSC (153 KB) - TINA-TI Reference Design
시뮬레이션 모델

TPS54424 TINA-TI Average Spice Model

SLVMCN4.ZIP (9 KB) - TINA-TI Spice Model
레퍼런스 디자인

TIDA-01510 — DC/DC 컨버터로 전력 밀도를 높이기 위한 양면 레이아웃 레퍼런스 설계

이 레퍼런스 설계는 더 높은 전원 공급 장치 밀도를 달성하기 위해 양면 DC/DC 레이아웃을 설계하는 올바른 방법을 보여줍니다. 설계 가이드에서는 일반적인 실수와 이를 방지하는 방법을 중점적으로 설명하고, 양면 레이아웃에서 TPS54824 장치를 올바르게 구현하면 성능이 저하되지 않음을 보여주는 테스트 결과를 제공합니다. TPS54824 벅 컨버터의 8A 출력이 너무 높은 경우 이 설계에서 4A 핀 대 핀 호환 가능 장치 TPS54424를 대신 사용할 수도 있습니다.
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN-HR (RNV) 18 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

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