TPS51397A
- Input voltage range: 4.5 V to 24 V
- Output voltage range: 0.6 V to 5.5 V
- Supports 10-A continuous output current
- D-CAP3™ architecture control for fast transient response
- 0.6 V ± 1% feedback voltage accuracy (25°C)
- Integrated 17-mΩ and 5.9-mΩ FETs
- ULQ™ operation (110 µA) to enable long battery life during system standby
- Selectable Eco-mode™ and Out-of-Audio™ by MODE pin
- 500-kHz and 800-kHz selectable switching frequency
- Adjustable soft-start time with default internal 1.2 ms
- Large duty cycle operation
- Integrated power-good indicator
- Built-in output discharge function
- Cycle-by-cycle overcurrent protection
- Latched output OV and UV protections
- Non-latched UVLO and OT protections
- -40°C to 125°C Operating junction temperature
- 20-pin 3.0-mm × 3.0-mm HotRod™ VQFN package
- Pin-to-pin compatible with 12-A TPS56C230
- Create a custom design using the TPS51397A with the WEBENCH® Power Designer
The device is a monolithic 10-A synchronous buck converter with integrated MOSFETs that enable high efficiency and offers ease-of-use with minimum external component count for space-conscious power systems.
The TPS51397A employs D-CAP3™ control that provides fast transient response and excellent line and load regulation with internal compensation. The ULQ™ (Ultra Low Quiescent) feature is extremely beneficial for long battery life in low power operation. The large duty operation greatly improves the load transient performance when input voltage is low.
The MODE pin can be used to set Eco-mode™ or Out-of-Audio™ (OOA) mode for light-load operation and 500-kHz or 800-kHz switching frequency. The Eco-mode™ maintains high efficiency during light load operation. The OOA mode keeps the switching frequency above audible frequency with minimum reduction in efficiency.
The device supports both internal and external soft-start options. It has an internal fixed soft-start time of 1.2 ms. If the application needs a longer soft-start time, the external SS pin can be connected to an external capacitor.
The TPS51397A integrates a power-good indicator and provides an output discharge function. It provides complete protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 20-pin 3.0-mm x 3.0-mm HotRod™ package and the junction temperature is specified from –40°C to 125°C.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS51397A 4.5-V to 24-V, 10-A Synchronous Buck Converter with ULQ™ Operation datasheet (Rev. A) | PDF | HTML | 2020/10/12 |
| Application note | Peak Current Mode Converter Secondary Stage Filter Design for Low Ripple Power – Part II: Hybrid Sense Network | PDF | HTML | 2024/02/27 | |
| Application note | Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) | PDF | HTML | 2023/04/21 | |
| Application note | Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 2 | PDF | HTML | 2021/08/02 | |
| Application note | Stability Analysis and Design of D-CAP2 and D-CAP3 Converter – Part 1 | PDF | HTML | 2021/06/09 | |
| EVM User's guide | TPS51397A Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2021/04/23 | |
| Application note | Non-Isolated DC/DC Solutions for Alder Lake in Notebook Computing Applications | PDF | HTML | 2021/01/08 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS51397AEVM — 10A 동기 스텝다운 레귤레이터 평가 모듈
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| VQFN-HR (RJE) | 20 | 옵션 보기 |
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