TPS61253A
- Wide input voltage range from 2.3 V to 5.5 V (TPS61253A)
- Wide input voltage range from 2.5 V to 5.5 V (Startup>2.6V, TPS61253E)
- Fixed output voltage: 4.5 / 4.7 / 5.0 / 5.2 V / 5.25 V
- Two FETs integrated: 35-mΩ LS-FET, 60-mΩ HS-FET
- IOUT ≥ 1500-mA continuously at VOUT = 5 V and VIN ≥ 3 V (TPS61253A)
- IOUT ≥ 1500-mA continuously at VOUT = 5.25 V and VIN ≥ 3 V (TPS61253E)
- 42-µA quiescent current from input
- 4-A switching valley current limit
- 3.8-MHz switching frequency
- Selectable auto PFM, forced PWM, and ultrasonic mode
- Support pass-through mode
- ±2% output voltage accuracy
- 600-µs soft-start time
- Hiccup-mode short protection
- Load disconnection during shutdown
- Thermal shutdown
- Total solution size < 25 mm 2
- 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 2.3 V to 5.5 V (TPS61253A) or 2.5 V to 5.5 V (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 4.5 V, 4.7 V, 5 V, 5.2V and 5.25 V. The TPS61253x supports up to 1500-mA load current from a battery discharged as low as 3 V.
The TPS61253x operates at typical 3.8-MHz 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 25 kHz at any load condition to avoid the acoustic noise.
TPS61253x has a built-in 600-µs 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 1.3-µA current being consumed.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS61253A, TPS61253E 3.8-MHz, 5-V, 4-A Boost Converter in 1.2-mm x 1.3-mm WCSP datasheet (Rev. E) | PDF | HTML | 2022年 4月 25日 |
| Technical article | Make a boost converter quieter | PDF | HTML | 2017年 11月 27日 | |
| Application note | Choosing the Boost With Bypass or Pass Through | 2017年 6月 27日 |
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
TPS61253A Unencrypted PSpice Transient Model Package (Rev. A)
| 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
- 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
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。