TPS546E25
- 4V to 18V input voltage without external bias
- 2.7V to 18V input voltage with external bias
- 0.4V to 5.5V output voltage
- Supports 50A single-phase or 2 ×, 3 ×, or 4 × stacked configurations
- Rdson_HS = 2.9mΩ, Rdson_LS = 1mΩ
- 400kHz to 2MHz operating frequency (four discrete settings through pinstrap, additional settings through PMBus)
- PMBus programmability
- 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 field
- Precision voltage reference and differential remote sense for high output accuracy
- +/– 0.5% DAC accuracy from 0°C to 85°C junction
- +/– 1% 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
- Programmable soft-start time from 0.5ms to 16ms
- Programmable soft-stop time from 0.5ms to 4ms
- 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 TPS546E25 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. Pinstrap 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 TPS546E25 devices can be interconnected to provide up to 200A on a single output.
The device has an option to overdrive the internal 5V LDO with an external 5V supply through the VDRV and VCC pins to improve efficiency, reduce power dissipation, and enable start-up with a lower input voltage.
The TPS546E25 is a lead-free device and is RoHS compliant without exemption.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS546E25 4V to 18V Input, 50A , 4 × Stackable, Synchronous Buck Converter With PMBus and Telemetry datasheet | PDF | HTML | 2024/07/12 |
| EVM User's guide | TPS546E25EVM-1PH SWIFT™ Step-Down Converter Evaluation Module | PDF | HTML | 2024/07/15 | |
| Certificate | TPS546E25EVM-1PH EU Declaration of Conformity (DoC) (Rev. A) | 2024/07/09 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS546E25EVM-1PH — TPS546E25 평가 모듈 단상
TPS546E25는 TPS546E25 장치를 사용하는 단상 벅 설계입니다. EVM은 공칭 12V 버스용으로 설계되었으며 최대 50A의 부하 전류에서 조정된 1.2V 출력을 생성합니다. TPS546E25EVM-1PH는 단상, 저출력 전압 애플리케이션에서 TPS546E25의 작동을 시연하는 동시에 디바이스의 성능을 평가하기 위한 여러 테스트 포인트를 제공하도록 설계되었습니다.
USB-TO-GPIO2 — USB-TO-GPIO2 USB 인터페이스 어댑터 평가 모듈
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| WQFN-FCRLF (RXX) | 37 | 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