TPS61129-Q1
- AEC-Q100 qualified for automotive applications
- Device temperature grade 1: –40°C to 125°C ambient operating temperature range
- Input voltage range: 0.9V to 5.5V
- Output voltage range: 2.6V to 5.5V
- Fixed 5V or adjustable Vout: TPS61129-Q1
- Fixed 3.85V Vout: TPS611291-Q1
- Fixed 5.15V Vout: TPS611292-Q1
- 275Ω output discharge resistance at EN = 0
- Typical 5µA quiescent current into VOUT pin
- Typical 0.01µA quiescent current into VIN pin
- Typical 100nA shutdown current
- Peak switching current limit: 3.5A typical
- Integrated LS / HS FET: 125mΩ / 145mΩ
- Switching frequency:
- 2.2MHz for TPS61129-Q1
- 2.0MHz for TPS611291-Q1
- ±6% spread spectrum modulation (SSEN enable)
- Auto PFM, forced PWM mode, SYNC selectable
- Down mode operation when Vin is close to or higher than Vout
- Windowed power good (PGOOD)
- True disconnect during shutdown
- OVP and thermal shutdown protections
- Output short-circuit protection
- 3mm × 3mm VSON-11 wettable flank package
The TPS61129-Q1 provides a power supply design for portable equipment and smart devices, powered by various batteries and other power supplies. The TPS61129-Q1 has a 3.5A (typical) peak switch current limit. The TPS61129-Q1 employs peak current mode control with a fixed switching frequency of 2.2MHz. Under moderate to heavy load conditions, the TPS61129-Q1 operates in pulse width modulation (PWM) mode. At light load, the device has two operating modes that can be selected through the MODE pin. One is pulse frequency modulation (auto PFM) mode to improve light-load efficiency, and the other is forced PWM mode to avoid audible noise and to improve light load ripple performance. The switching frequency can also be synchronized to an external clock. The TPS61129-Q1 implements spread spectrum modulation on the internal clock signal, significantly enhancing electromagnetic interference (EMI) performance when operating in Forced PWM mode. In addition, there is an internal soft-start time to limit the inrush current during start-up.
During shutdown, the output load is fully isolated from the input power source, and the TPS61129-Q1 only consumes a 0.1µA current to achieve long battery life.
The TPS61129-Q1 output voltage can be programmed by an external resistor divider, or is available with fixed 5.15V, 5.0V, and 3.85V options internally on the chip.
The TPS61129-Q1 offers a very small design size with a 3.0mm × 3.0mm wettable flank VSON package.
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 | TPS61129-Q1 5.5V, 3.5A Isw Automotive Boost Converter With Clock Synchronization datasheet | PDF | HTML | 2026/5/22 | ||
| EVM User's guide | TPS61129-Q1 Evaluation Module (Rev. A) | PDF | HTML | 2026/4/13 |
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)。
TPS61129Q1EVM — TPS61129-Q1 評估模組
TPS61129Q1EVM 有助於在各種操作條件下，全面評估 TPS61129-Q1 的行為與效能，包括不同的輸入電壓（0.9V 至 5.5V 範圍）、輸出電壓與負載情境。此模組可透過外部回饋電阻配置，將輸出電壓調整為 2.6V 至 5.5V，並具備三個關鍵跳線，可用於測試 EN、SSEN 與 MODE 引腳功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRC) | 10 | 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。