TPS61252
- Resistor Programmable Input Current Limit
- ±20% Current Accuracy at 500 mA over
Full Temperature Range - Programmable from 100 mA up to 1500 mA
- ±20% Current Accuracy at 500 mA over
- Up to 92% Efficiency
- VIN Range from 2.3 V to 6.0 V
- Power Good Indicates Appropriate Output Voltage Level
- Adjustable Output Voltage up to 6.5 V
- 100% Duty-Cycle Mode When VIN > VOUT
- Load Disconnect and Reverse Current Protection
- Short Circuit Protection
- Typical Operating Frequency 3.25 MHz
- Available in a 2-mm × 2-mm WSON-8 Package
- APPLICATIONS
- USB Host Supplies from a Single Li-Ion Battery
- Current Limited Applications
- Li-Ion Applications
- Audio Applications
- RF-PA Buffer
All other trademarks are the property of their respective owners
The TPS61252 device provides a power supply solution for products powered by either a three-cell alkaline, NiCd or NiMH battery, or an one-cell Li-Ion or Li-polymer battery. The wide input voltage range is ideal to power portable applications like mobile phones or computer peripherals. The device has a resistor programmable (RILIM) input current limit and is suitable for a wide variety of applications.
During light loads, the device automatically enters skip mode (PFM), which allows the converter to maintain the required output voltage, while only drawing 30 µA quiescent current from the battery. This allows maximum efficiency at lowest quiescent currents.
TPS61252 allows the use of small inductors and capacitors to achieve a small solution size. The possibility to reduce the current limit by a external resistor offers the potential use of physically even smaller inductors with lower rated currents to further reduce total solution sizes of the power supply. During shutdown, the load is completely disconnected from the battery. The TPS61252 is available in a 8-pin WSON package measuring 2 mm × 2 mm (DSG).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS61252 Tiny 1.5-A Boost Converter With Adjustable Input Current Limit datasheet (Rev. A) | PDF | HTML | 2014年 12月 24日 |
| Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023年 12月 6日 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018年 12月 11日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Calculating and Measuring the No Load Input Current of the Boost Converter | 2016年 9月 23日 | ||
| Application note | Five Steps to a Good PCB Layout of the Boost Converter | PDF | HTML | 2016年 5月 3日 | |
| Analog Design Journal | Design considerations for a resistive feedback divider in a DC/DC converter | 2012年 4月 26日 | ||
| Application note | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | 2011年 9月 19日 | ||
| Analog Design Journal | IQ: What it is, what it isn’t, and how to use it | 2011年 6月 17日 | ||
| User guide | TPS61252 Evaluation Module | 2010年 8月 26日 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DSG) | 8 | 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