TPS40304A
- Input Voltage Range from 3 V to 20 V
- Fixed 600-kHz Switching Frequency
- High- and Low-Side FET RDS(on) Current Sensing
- Programmable Thermally Compensated OCP Levels
- Programmable Soft-Start
- 591-mV, 1% Reference Voltage
- Voltage Feed-Forward Compensation
- Supports Pre-Biased Output
- Frequency Spread Spectrum
- Thermal Shutdown Protection at 145°C
- 10-Pin 3 mm × 3 mm SON Package with Ground
Connection to Thermal Pad - APPLICATIONS
- POL Modules
- Printer
- Digital TV
- Telecom
The TPS40304A is a cost-optimized synchronous buck controller that operates from 3-V to 20-V input. The controller implements a voltage-mode control architecture with input-voltage feed-forward compensation that responds instantly to input voltage change. The switching frequency is fixed at 600 kHz.
Frequency Spread Spectrum feature adds dither to the switching frequency, significantly reducing the peak EMI noise and making it much easier to comply with EMI standards.
The TPS40304A offers design with a variety of user programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation.
The OCP level is programmed by a single external resistor connected from LDRV pin to circuit ground. During initial power on, the TPS40304A enters a calibration cycle, measures the voltage at the LDRV pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. The TPS40304A then enters a shutdown and restart cycle until the fault is removed.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | 3-V TO 20-V INPUT SYNCHRONOUS BUCK CONTROLLER. datasheet | 2010/01/27 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS40304EVM-353 — NexFET™ 전원 MOSFET을 지원하는 8-14V Vin, 1.2V Vout 동기 벅 컨트롤러 평가 모듈
The TPS40304EVM-353 evaluation module is a synchronous buck controller providing a 1.2-V output at up to 20 A from a nominal 12-V input bus. The EVM is designed to start-up from a single supply, and no additional bias voltage is required. The module uses our NexFET™ high performance MOSFETs (...)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VSON (DRC) | 10 | 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