전원 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS54336A

활성

Eco-mode™를 사용하는 4.5V~28V 입력, 3A 동기 스텝다운 컨버터

제품 상세 정보

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 24 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 150 Switching frequency (min) (kHz) 340 Switching frequency (max) (kHz) 340 Iq (typ) (µA) 600 Control mode current mode Duty cycle (max) (%) 90 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 28 Vin (min) (V) 4.5 Vout (max) (V) 24 Vout (min) (V) 0.8 Features Enable, Light Load Efficiency, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable Operating temperature range (°C) -40 to 150 Switching frequency (min) (kHz) 340 Switching frequency (max) (kHz) 340 Iq (typ) (µA) 600 Control mode current mode Duty cycle (max) (%) 90 Type Converter
HSOIC (DDA) 8 29.4 mm² 4.9 x 6 VSON (DRC) 10 9 mm² 3 x 3
  • Synchronous 128-mΩ and 84-mΩ MOSFETs for
    3-A Continuous Output Current
  • TPS54335A: Internal 2-ms Soft-Start,
    50-kHz to 1.5-MHz Adjustable Frequency
  • TPS54336A: Adjustable Soft-Start,
     Fixed 340-kHz Frequency
  • Low 2-µA Shutdown, Quiescent Current
  • 0.8-V Voltage Reference with ±0.8%
    Accuracy
  • Current Mode Control
  • Monotonic Startup into Pre-Biased Outputs
  • Pulse Skipping for Light-Load Efficiency
  • Hiccup Mode Overcurrent Protection
  • Thermal Shutdown (TSD) and
    Overvoltage Transition Protection
  • 8-Pin SO PowerPAD and 10-Pin VSON Packages
  • Synchronous 128-mΩ and 84-mΩ MOSFETs for
    3-A Continuous Output Current
  • TPS54335A: Internal 2-ms Soft-Start,
    50-kHz to 1.5-MHz Adjustable Frequency
  • TPS54336A: Adjustable Soft-Start,
     Fixed 340-kHz Frequency
  • Low 2-µA Shutdown, Quiescent Current
  • 0.8-V Voltage Reference with ±0.8%
    Accuracy
  • Current Mode Control
  • Monotonic Startup into Pre-Biased Outputs
  • Pulse Skipping for Light-Load Efficiency
  • Hiccup Mode Overcurrent Protection
  • Thermal Shutdown (TSD) and
    Overvoltage Transition Protection
  • 8-Pin SO PowerPAD and 10-Pin VSON Packages

The TPS5433xA family of devices are synchronous converters with an input-voltage range of 4.5 to 28 V. These devices include an integrated low-side switching FET that eliminates the need for an external diode which reduces component count.

Efficiency is maximized through the integrated 128-mΩ and 84-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well-regulated voltage reference that is 1.5% over temperature.

Cycle-by-cycle current limiting on the high-side MOSFET protects the TPS5433xA family of devices in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.

The TPS5433xA family of devices are synchronous converters with an input-voltage range of 4.5 to 28 V. These devices include an integrated low-side switching FET that eliminates the need for an external diode which reduces component count.

Efficiency is maximized through the integrated 128-mΩ and 84-mΩ MOSFETs, low IQ and pulse skipping at light loads. Using the enable pin, the shutdown supply current is reduced to 2 μA. This step-down (buck) converter provides accurate regulation for a variety of loads with a well-regulated voltage reference that is 1.5% over temperature.

Cycle-by-cycle current limiting on the high-side MOSFET protects the TPS5433xA family of devices in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. A low-side sinking current-limit turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection is triggered if the overcurrent condition continues for longer than the preset time. Thermal shutdown disables the device when the die temperature exceeds the threshold and enables the device again after the built-in thermal hiccup time.

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기술 자료

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3개 모두 보기
유형 직함 날짜
* Data sheet TPS5433xA 4.5-V to 28-V Input, 3-A Output, Synchronous Step-Down DC-DC Converter datasheet (Rev. D) PDF | HTML 2016/02/10
Analog Design Journal Control-Mode Quick Reference Guide (Rev. B) PDF | HTML 2023/08/29
User guide TPS54336A Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021/10/07

설계 및 개발

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

평가 보드

TPS54336AEVM-010 — TPS54336A 동기 스텝다운 컨버터 평가 모듈

TPS54336AEVM-010은 TPS54366A 동기 스텝다운 SWIFT™ 컨버터 평가를 위한 완조립 및 테스트를 거친 회로입니다. 이 EVM은 8V~28V 입력 전압을 조절된 5V 출력 전압으로 변환하여 최대 3A를 제공합니다. TPS54336A에는 MOSFET가 통합되어 있고 전류 모드 제어를 구현하여 외부 부품 수를 줄이기 때문에 설계 크기가 작아집니다. 통합형 고압측 및 저압측 MOSFET, 낮은 정동작 공급 전류 및 저부하 시 펄스 스킵을 제공하여 효율성이 극대화됩니다. 인에이블 핀을 사용하여 셧다운 모드에 진입함으로써 (...)

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

TPS54336A TINA-TI Average Reference Design

SLVM979.TSC (235 KB) - TINA-TI Reference Design
시뮬레이션 모델

TPS54336A TINA-TI Average Spice Model

SLVM980.ZIP (7 KB) - TINA-TI Spice Model
시뮬레이션 모델

TPS54336A Unencrypted PSpice Average Model Package (Rev. A)

SLVM898A.ZIP (29 KB) - PSpice Model
시뮬레이션 모델

TPS54336A Unencrypted PSpice Transient Model Package (Rev. A)

SLVMAM8A.ZIP (97 KB) - PSpice Model
레퍼런스 디자인

TIDA-01365 — 양방향 RS-485 팬 아웃 허브 레퍼런스 디자인

The Bidirectional RS-485 Fan-Out Hub Reference Design (TIDA-01365) documents and tests an RS-485 fan-out hub design where 1:N and N:1 RS-485 signals are aggregated in and out of any bus topology. This design also features automatic direction control, for reduced pin count on microcontrollers, and (...)
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
HSOIC (DDA) 8 Ultra Librarian
VSON (DRC) 10 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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