TPS54418
- Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 4-A loads
- Switching Frequency: 200 kHz to 2 MHz
- Voltage Reference Over Temperature: 0.8 V ± 1%
- Synchronizes to External Clock
- Adjustable Soft Start/Sequencing
- UV and OV Power-Good Output
- Low Operating and Shutdown Quiescent Current
- Safe Start-Up into Prebiased Output
- Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
- Operating Junction Temperature Range: –40°C to 150°C
- Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package
- Create a Custom Design Using the TPS54418 With the WEBENCH® Power Designer
TheTPS54418 device is a full-featured, 6-V, 4-A, synchronous, step-down current-mode converter with two integrated MOSFETs.
The TPS54418 device enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.
The TPS54418 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.
Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-µA typical supply current. Using the EN pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.
Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the soft-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage. Frequency foldback and thermal shutdown protects the device during an overcurrent condition.
For more SWIFT™ documentation, see the TI website at www.ti.com/swift.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS54418 2.95-V to 6-V Input, 4-A Output, 2-MHz, Synchronous Step-Down SWIFT™ Converter datasheet (Rev. E) | PDF | HTML | 2018. 4. 6 | |
| 애플리케이션 노트 | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 2024. 3. 25 | ||
| 애플리케이션 노트 | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) | PDF | HTML | 2021. 7. 26 | ||
| 선택 가이드 | Buck Converter Quick Reference Guide (Rev. B) | 2021. 4. 8 | |||
| 애플리케이션 노트 | Calculating Efficiency (Rev. A) | 2020. 3. 6 | |||
| 애플리케이션 노트 | Solve Point-of-Load Power Design Challenges: Single Board Computer Applications | 2018. 8. 24 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 애플리케이션 노트 | Not All Jitter Is Created Equal (Rev. A) | 2015. 7. 4 | |||
| 애플리케이션 노트 | Understanding Thermal Dissipation and Design of a Heatsink | 2011. 5. 4 | |||
| 애플리케이션 노트 | Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) | 2010. 9. 15 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS54418EVM-375 — TPS54418 3.3V 입력, 1.8V 출력, 4A SWIFT™ 평가 모듈
TPS54418 Unencrypted PSpice Average Model Package (Rev. A)
TPS54418 Unencrypted PSpice Transient Model Package (Rev. B)
TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN (RTE) | 16 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.