計算工具
TPS630251
- Real Buck or Boost Operation with Automatic and
Seamless Transition Between Buck and Boost
Operation - 2.3 V to 5.5 V input voltage range
- 2 A Continuous Output Current : VIN≥ 2.5 V,
VOUT= 3.3 V - Adjustable and Fixed Output Voltage
- Efficiency up to 95% in Buck or Boost Mode and
up to 97% when VIN=VOUT - 2.5MHz Typical Switching Frequency
- 35-µA Operating Quiescent Current
- Integrated Soft Start
- Power Save Mode
- True Shutdown Function
- Output Capacitor Discharge Function
- Over-Temperature Protection and Over-Current
Protection - Wide Capacitance Selection
- Small 1.766 mm × 2.086 mm, 20-pin WCSP and
2.5 mm × 3 mm, 14-pin Hot Rod
The TPS63025x are high efficiency, low quiescent current buck-boost converters suitable for application where the input voltage is higher or lower than the output. Output currents can go as high as 2 A in boost mode and as high as 4 A in buck mode. The maximum average current in the switches is limited to a typical value of 4 A. The TPS63025x regulates the output voltage over the complete input voltage range by automatically switching between buck or boost mode depending on the input voltage ensuring a seamless transition between modes. The buck-boost converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification to obtain highest efficiency. At low load currents, the converter enters Power Save Mode to maintain high efficiency over the complete load current range. There is a PFM/PWM pin that allows the user to choose between automatic PFM/PWM mode operation and forced PWM operation. During PWM mode a fixed-frequency of typically 2.5 MHz is used. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery. The device is packaged in a 20-pin WCSP package measuring 1.766 mm × 2.086mm and 14-pin HotRod package measuring 2.5 mm × 3mm.
技術文件
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檢視所有 7 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | High Current Single Inductor Buck-Boost Converter datasheet (Rev. B) | 2014年 6月 16日 | |
| Application note | Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) | PDF | HTML | 2021年 6月 9日 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018年 12月 11日 | ||
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018年 9月 19日 | ||
| Application note | Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) | 2018年 7月 9日 | ||
| User guide | TPS63025xEVM-553 | 2014年 4月 25日 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 2011年 6月 17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)。
開發板
TPS630250EVM-553 — TPS630250 DSBGA 評估模組 4-A 開關降壓-升壓穩壓器
TPS63025xEVM-553 可測試與評估德州儀器的 TPS63025 裝置系列，即 2.5MHz (典型值) 完全整合式降壓-升壓轉換器。
TPS63025x 裝置是降壓升壓拓撲的高效率、低靜態電流裝置。適合輸入電壓可能高於或低於輸出電壓的應用。輸出電流可分別高達 2A (升壓模式) 及 4A (降壓模式)
使用指南: PDF
模擬型號
TPS630251 Unencrypted PSpice Transient Model Package (Rev. A)
SLVMAJ8A.ZIP (82 KB) - PSpice Model
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 20 | Ultra Librarian |
訂購與品質
內含資訊：
- 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
內含資訊：
- 晶圓廠位置
- 組裝地點