TPS54320
- Integrated 57-mΩ / 50-mΩ MOSFETs
- Split Power Rail: 1.6 to 17 V on PVIN
- 200-kHz to 1.2-MHz Switching Frequency
- Synchronizes to External Clock
- 0.8-V Voltage Reference With ±1% Accuracy
- Low 2-µA Shutdown Quiescent Current
- Hiccup Overcurrent Protection
- Monotonic Start-Up into Prebiased Outputs
- –40°C to 150°C Operating Junction Temperature Range
- Pin-to-Pin Compatible With the TPS54620
- Adjustable Slow Start/Power Sequencing
- Power Good Output for Undervoltage and Overvoltage Monitoring
- Adjustable Input Undervoltage Lockout (UVLO)
- Supported by SwitcherPro™ Software Tool
- For SWIFT™ Documentation and SwitcherPro, Visit www.ti.com/swift
- Create a Custom Design Using the TPS54320 With the WEBENCH® Power Designer
The TPS54320 is a full-featured 17-V, 3-A synchronous step-down converter which is optimized for small designs through high efficiency and integrated high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing footprint of the inductor.
The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a stand-alone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.
Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. Hiccup protection is triggered if the overcurrent condition has persisted for longer than the preset time. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature. The TPS54320 is available in a 14-pin, 3.5-mm × 3.5-mm VQFN, thermally enhanced package.
기술 자료
설계 및 개발
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TPS54320EVM-513 — TPS54320 4.5V~17V 입력, 3A 동기 스텝다운 SWIFT™ 컨버터용 평가 모듈
The TPS54320EVM-513 is a fully assembled and tested circuit for evaluating the TPS54320 synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 17-V input voltage to a regulated 3.3-V output voltage that delivers up to 3 A. The switching frequency is externally set at a nominal (...)
TPS54320 TINA-TI Transient Reference Design
TPS54320 Unencrypted PSpice Average Model Package (Rev. A)
TPS54320 Unencrypted PSpice Transient Model Package (Rev. A)
TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator
지원되는 제품 및 하드웨어
제품
AC/DC 및 DC/DC 컨버터(통합 FET)
하드웨어 개발
평가 보드
소프트웨어
계산 툴
TIDEP0011 — 동적 전압 스케일링이 가능한 C667x DSP AVS 코어(CVDD)용 전원 솔루션
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN (RHL) | 14 | 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