TPS54531
- 3.5 to 28-V input voltage range
- Adjustable output voltage down to 0.8 V
- Integrated 80-mΩ high-side MOSFET supports up to 5-A continuous output current
- High efficiency at light loads with a pulse skipping Eco-mode
- Fixed 570-kHz switching frequency
- Typical 1-µA shutdown quiescent current
- Adjustable slow start limits inrush currents
- Programmable UVLO threshold
- Overvoltage transient protection
- Cycle-by-cycle current-limit, frequency fold back, and thermal shutdown protection
- Available in easy-to-use thermally enhanced 8-pin SO PowerPAD™ integrated circuit package
- Use TPS56637 for higher efficiency in a smaller package
- Create a custom design using the TPS54531 with the WEBENCH Power Designer
The TPS54531 device is a 28-V, 5-A non-synchronous buck converter that integrates a low R DS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency fold back, and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54531 device is available in 8-pin SO PowerPAD integrated circuit package that has been internally optimized to improve thermal performance.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS54531 5-A, 28-V Input,SWIFTStep-Down Converter With Eco-mode datasheet (Rev. B) | PDF | HTML | 2023年 10月 10日 |
EVM User's guide | TPS54531 Step-Down Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2021年 8月 26日 | |
Selection guide | Buck Converter Quick Reference Guide (Rev. B) | 2021年 4月 8日 | ||
Application note | Using TPS54335A to Create an Inverting Power Supply (Rev. A) | 2017年 7月 19日 |
設計與開發
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TPS54531EVM-530 — TPS54531 降壓 DC/DC 轉換器評估模組
The TPS54531EVM-530 is a fully assembled and tested circuit for evaluating the TPS54531 synchronous step-down SWIFT™ converter. The EVM converts a 8-V to 28-V input voltage to a regulated 5-V output voltage that delivers up to 5 A and 95.3% efficiency.
USB-PD-CHG-EVM-01 — 整合式 USB Type-C® 電力傳輸 (PD) 和 2-4 芯電池 EVM 的充電參考設計
USB-PD-CHG-EVM-01 評估模組 (EVM) 可用來一起評估 BQ25798 裝置與 TPS25750 裝置。BQ25798 是採用 HOTROD (QFN) 封裝的整合式切換模式降壓升壓電池充電管理裝置,適用 3.6-24-V 輸入的 1 至 4 串聯電池芯鋰離子與鋰聚合物電池。TPS25750 為一款 USB Type-C 與 PD 控制器,可在內部供應和汲取 20-V/5-A 電流。I2C 序列介面可讓 PD 控制器驅動電池充電器,同時由主機驅動,讓這套組合成為真正靈活的解決方案
TPS54531 Unencrypted PSpice Transient Model Package (Rev. A)
TIDA-050047 — 整合式 USB Type-C® 電力傳輸 (PD) 和 2-4 芯電池的充電參考設計
TIDEP0076 — 基於 AM572x 處理器並採用 DLP® 結構光的 3D 機器視覺參考設計
TIDA-010010 — 工業 GB 乙太網路 PHY 參考設計
TIDEP0046 — 基於 AM57x 使用 OpenCL 進行 DSP 加速的 Monte-Carlo 模擬參考設計
TIDEP0047 — 採用 TI AM57x 處理器參考設計的電源和熱能設計考量
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
HSOIC (DDA) | 8 | 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