TPS546C25
- 2.7V to 18V input voltage with external bias
- 4V to 18V input voltage without external bias
- 0.4V to 5.5V output voltage
- Supports 35A single-phase or 2 ×, 3 ×, or 4 × stacked configurations
- Rdson_HS = 3.3mΩ, Rdson_LS = 1mΩ
- 400kHz to 2MHz operating frequency (four discrete settings through pin-strap, additional settings through PMBus)
- PMBus programmable
- Revision 1.5 compliant with PASSKEY security feature
- Input voltage, output voltage, output current, temperature telemetry
- Programmable overcurrent, overvoltage, undervoltage, overtemperature protections
- Includes single command write function in stacked configuration
- Extended write protection feature
- Non-volatile memory to store configuration settings
- Two methods for programming the output voltage
- Internal resistor divider (discrete settings) with boot-up voltage selected by pin-strapping
- External resistor divider (continuous settings) with boot-up voltage selected by VBOOT
- Precision voltage reference and differential remote sense for high output accuracy
- ± 0.5% DAC accuracy from 0°C to 85°C junction
- ± 0.85% VOUT tolerance from –40°C to 125°C junction
- Selectable FCCM/DCM in single phase only
- Start-up without PMBus communication through pin-strapping
- Safe start-up into prebiased output
- 0.5ms to 16ms programmable soft-start time
- D-CAP4 control topology with fast transient response, supporting all ceramic output capacitors
- Programmable internal loop compensation
- Selectable cycle-by-cycle valley current limit
- Open-drain power-good output
The TPS546C25 device is a highly-integrated buck converter with D-CAP4 control topology for fast transient response. All programmable parameters can be configured by the PMBus interface and stored in NVM as the new default values to minimize the external component count. Pin-strap options allow for configuration as primary or secondary, stack position and stack number, DCM (single phase only) or FCCM, overcurrent limit, fault response, internal or external feedback resistor, output voltage selection or range, switching frequency, and compensation.
The PMBus interface with 1MHz clock support gives a convenient, standardized, digital interface for configuration as well as telemetry of key parameters including output voltage, output current, and internal die temperature. Response to fault conditions can be set to restart, latch off, or ignore, depending on system requirements. Two, three, and four TPS546C25 devices can be interconnected to provide up to 140A on a single output.
The TPS546C25 has an option to overdrive the internal 4.5V LDO with an external 5V supply through the to improve efficiency, reduce power dissipation, and enable start-up with a lower input voltage.
The TPS546C25 is a lead-free device and is RoHS compliant without exemption.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS546C25 4V to 18V Input, 35A, 4 × Stackable, Synchronous Buck Converter With PMBus and Telemetry datasheet (Rev. A) | PDF | HTML | 2025/09/16 |
| Application brief | Achieving Higher Output Current by Stacking TPS546E25 and TPS546C25 DC/DC Converters | PDF | HTML | 2025/05/04 | |
| Application note | Point-of-Load Designs in Data Center Applications for Intel Xeon Sapphire Rapids Scalable Processors (Rev. C) | PDF | HTML | 2024/10/09 | |
| Application note | TPS546E25 and TPS546C25 Advanced Product Errata | PDF | HTML | 2024/07/31 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS546C25EVM-1PH — 단상 벅 컨버터용 TPS546C25평가 모듈
USB-TO-GPIO2 — USB-TO-GPIO2 USB 인터페이스 어댑터 평가 모듈
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN-FCRLF (VBD) | 33 | 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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.