TPS54623
- Integrated 26 mΩ, 19 mΩ MOSFETs
- Split Power Rail: 1.6 V to 17 V on PVIN
- 200 kHz to 1.6 MHz Switching Frequency
- Light Load Efficient With Pulse Skip
- Synchronizes to External Clock
- 0.6 V ±1% Voltage Reference Overtemperature
- Low 2-µA Shutdown Quiescent Current
- Monotonic Start-Up into Pre-biased Outputs
- –40°C to 150°C Operating Junction Temperature Range
- Adjustable Slow Start and Power Sequencing
- Power Good Output Monitor for Undervoltage and Overvoltage
- Adjustable Input Undervoltage Lockout
- Create a Custom Design Using the TPS54623 With the WEBENCH® Power Designer
The TPS54623 in thermally enhanced VQFN package is a full featured 17-V, 6-A synchronous step-down converter which is optimized for small designs through high efficiency and integrating the 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 the inductor’s footprint.
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. There is also a low-side sinking current limit that turns off the low-side MOSFET to prevent excessive reverse current. Hiccup protection will be triggered if the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the device when the die temperature exceeds the thermal shutdown temperature and enables the part again after the built-in thermal shutdown hiccup time. The TPS54623 operates at continuous current mode (CCM) at higher load conditions while skipping pulses to boost the efficiency at light loads.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS54623 4.5-V to 17-V Input, 6-A Synchronous Step-Down SWIFT™ Converter With Light Load Efficiency and Hiccup Overcurrent Protection datasheet (Rev. C) | PDF | HTML | 2017年 10月 10日 |
| Application note | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 2024年 3月 25日 | |
| EVM User's guide | TPS54623 Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2021年 8月 23日 | |
| Application note | Calculating Efficiency (Rev. A) | 2020年 3月 6日 | ||
| Application note | Minimizing Output Ripple During Startup (Rev. A) | 2019年 5月 20日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Minimizing Output Ripple During Startup | 2017年 6月 22日 | ||
| Application note | Understanding Thermal Dissipation and Design of a Heatsink | 2011年 5月 4日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS54623EVM-012 — 用於 TPS54623 同步降壓 SWIFT 轉換器的評估模組
TPS54623 Unencrypted PSpice Transient Model Package (Rev. A)
| 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