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.
技術文件
設計與開發
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TPS54320EVM-513 — 用於 TPS54320 4.5V 至 17V 輸入、3A 同步降壓 SWIFT™ 轉換器的評估模組
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 Unencrypted PSpice Transient Model Package (Rev. A)
TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator
支援產品和硬體
產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
硬體開發
開發板
軟體
計算工具
TIDEP0011 — 具有動態電壓調節的 C667x DSP AVS 核心 (CVDD) 電源解決方案
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
VQFN (RHL) | 14 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點