TPS61253A
- Wide input voltage range from 2.3V to 5.5V (TPS61253A, TPS61253F)
- Wide input voltage range from 2.5V to 5.5V (Startup>2.6V, TPS61253E)
- Fixed output voltage: 4.5 / 4.7 / 5.0 / 5.2V / 5.25V
- Two FETs integrated: 35mΩ LS-FET, 60mΩ HS-FET
- IOUT ≥ 1500mA continuously at VOUT = 5V and VIN ≥ 3V (TPS61253A, TPS61253F)
- IOUT ≥ 1500mA continuously at VOUT = 5.25V and VIN ≥ 3V (TPS61253E)
- 42µA quiescent current from input
- 4A switching valley current limit (TPS61253A)
- 4.5A switching valley current limit (TPS61253E, TPS61253F)
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TPS61253E and TPS61253F support 1.2V I/O
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TPS612532A output discharge function available
- 3.8MHz switching frequency
- Selectable Auto PFM, Forced PWM, and Ultrasonic mode
- Support pass-through mode
- ±2% output voltage accuracy
- 600µs soft-start time
- Hiccup-mode short protection
- Load disconnection during shutdown
- Thermal shutdown
- Create a custom design using the TPS61253A with the WEBENCH® Power Designer
The TPS61253x device provides a power supply solution for battery-powered portable applications. With the input voltage ranging from 2.3V to 5.5V (TPS61253A, TPS61253F) or 2.5V to 5.5V (TPS61253E), the device supports the applications powered by the Li-Ion batteries with the extended voltage range. Different fixed output voltage versions are available of 4.5V, 4.7V, 5V, 5.2V and 5.25V. The TPS61253x supports up to 1500mA load current from a battery discharged as low as 3V.
The TPS61253x operates at typical 3.8MHz switching frequency. The TPS61253x can be flexibly configured at the Auto PFM mode, forced PWM mode, or ultrasonic mode. The Auto PFM mode can benefit with the high efficiency at the light load. The forced PWM operation can make the switching frequency be constant crossing the whole load range. The ultrasonic mode keeps the switching frequency always larger than 25kHz at any load condition to avoid the acoustic noise.
TPS61253x has a built-in 600µs soft start to avoid the inrush current at start-up. When the output is shorted, the device enters into the hiccup mode and recovers automatically after the short releases. During the shutdown, the load is completely disconnected from the input end with maximum 1.3µA current being consumed.
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 | TPS61253A, TPS61253E, TPS61253F 3.8MHz, 5V, 4A Boost Converter in 1.2mm x 1.3mm WCSP datasheet (Rev. F) | PDF | HTML | 2026/1/28 | ||
| 技術文章 | Make a boost converter quieter | PDF | HTML | 2017/11/27 | |||
| 應用說明 | Choosing the Boost With Bypass or Pass Through | 2017/6/27 |
設計與開發
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TPS61253AEVM-803 — 適用於 TPS61253A 的升壓轉換器評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| DSBGA (YFF) | 9 | 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。