TPS54308
- 4.5-V to 28-V wide input voltage range
- Integrated 85-mΩ and 40-mΩ MOSFETs for 3-A, continuous output current
- Low 2-µA shutdown, 300-µA quiescent current
- Internal 5-mS soft start
- Fixed 350-kHz switching frequency
- Peak current mode control
- Internal loop compensation
- Overcurrent protection for both MOSFETs with hiccup mode protection
- Overvoltage protection
- Thermal shutdown
- SOT-23 (6) package
- Create a custom design using the TPS54308 with the WEBENCH Power Designer
The TPS54308 is a 4.5-V to 28-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation, and 5-ms internal soft start to reduce component count.
By integrating the MOSFETs and employing the SOT-23 package, the TPS54308 achieves high power density and offers a small footprint on the PCB.
The TPS54308 operates in force continuous conduction mode (FCCM) during light load conditions. The switching frequency is maintained at an almost constant level over entire load range.
Cycle-by-cycle current limit in both high-side MOSFETs protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit, which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | TPS54308 4.5-V to 28-V Input, 3-A Output, Synchronous 350-kHz FCCM Step-Down Converter in SOT23 Package datasheet (Rev. A) | PDF | HTML | 2021/04/16 |
Application note | Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part I: Filter Design for Out | PDF | HTML | 2024/02/27 | |
Application note | Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network | PDF | HTML | 2024/02/27 | |
Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021/04/08 | ||
Application note | Designing a Simple and Low-Cost Flybuck Solution With the TPS54308 (Rev. A) | 2019/10/14 | ||
Application note | Using the TPS54x02 to Create an Inverting Power Supply | 2018/06/15 | ||
EVM User's guide | TPS54308EVM-876 3-A Regulator Evaluation Module | 2017/05/30 |
설계 및 개발
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TPS54308EVM-876 — TPS54308 4.5V ~ 28V 입력, 3A 출력 동기 스텝다운 컨버터 평가 모듈
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TPS54308 Unencrypted PSpice Transient Model Package (Rev. C)
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOT-23-THN (DDC) | 6 | Ultra Librarian |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치