TPS65295
- Synchronous buck converter (VDDQ)
- Input voltage range: 4.5 V to 18 V
- Output voltage fixed at 1.2 V
- D-CAP3™ mode control for fast transient response
- Continual output current: 8 A
- Advanced Eco-mode™ pulse skip
- Integrated 22-mΩ and 8.6-mΩ RDS(on) internal power switch
- 600-kHz switching frequency
- Internal soft start: 1.6 ms
- Cycle-by-cycle overcurrent protection
- Latched output OV and UV protections
- Synchronous buck converter
(VPP)
- Input voltage range: 3 V to 5.5 V
- Output voltage fixed at 2.5 V
- D-CAP3™ mode control for fast transient response
- Continual output current: 1 A
- Advanced Eco-mode™ pulse skip
- Integrated 150-mΩ and 120-mΩ RDS(on) internal power switch
- 580-kHz switching frequency
- Internal soft start: 1 ms
- Cycle-by-cycle overcurrent protection
- Latched output OV and UV protections
- 1-A LDO (VTT)
- 1-A continual sink and source current
- Requires only 10 µF of ceramic output capacitor
- Support high-z in S3
- ±30-mV VTT output accuracy (DC+AC)
- Buffered reference
(VTTREF)
- Buffered, low noise, ±10-mA capability
- 0.8% output accuracy
- Low quiescent current: 150 µA
- Power good indicator
- Output discharge function
- Power up and power down sequencing control
- Non-latch for OT and UVLO protections
- 18-pin 3.0-mm × 3.0-mm HotRod™ VQFN package
The TPS65295 device provides a complete power solution for DDR4 memory system with the lowest total cost and minimum space. It meets the JEDEC standard for DDR4 power-up and power-down sequence requirement. The TPS65295 integrates two synchronous buck converters (VPP and VDDQ) and a 1-A sink and source tracking LDO (VTT) and a buffered low noise reference (VTTREF). The TPS65295 employs D-CAP3™ mode coupled with 600-kHz switching frequency for ease-of-use, fast transient, and support for ceramic output capacitors without an external compensation circuit.
The VTTREF tracks ½ VDDQ within excellent 0.8% accuracy. The VTT, which provides both 1-A sink and source continual current capabilities, requires only 10-µF of ceramic output capacitor.
The TPS65295 provides rich functions as well as excellent power supply performance. It supports flexible power state control, placing VTT at high-Z in S3 and discharging VDDQ, VTT, and VTTREF in S4/S5 state. OVP, UVP, OCP, UVLO and thermal shutdown protections are also available. The part is available in a thermally enhanced 18-pin HotRod™ VQFN package and is designed to operate under the –40°C to 125°C junction temperature range.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS65295 complete DDR4 memory power solution datasheet | PDF | HTML | 2019/2/22 | ||
| 應用說明 | Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) | PDF | HTML | 2021/4/29 | |||
| 應用說明 | Non-Isolated Point-of-Load Solutions for Elkhart Lake in Industrial PC App. (Rev. A) | PDF | HTML | 2020/5/21 |
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)。
TPS65295EVM-079 — 8-A 降壓轉換器評估模組
TIPA-050005 — 適用於 PC 應用中 Tiger Lake 的非隔離負載點解決方案
Intel® Tiger Lake 微架構等先進處理器和平台需要負載點 (POL) 解決方案，來滿足記憶體、低功耗 CPU 軌，以及一系列充電電池或 12V 輸入匯流排的 3.3V 和 5V 軌需求。
此電源供應設計以最新 DC/DC 轉換器為亮點，展示可因應 PC 應用中一般 Tiger Lake 電源需求的功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RJE) | 18 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。