TPS62261-Q1
- Qualified for Automotive Applications
- High-Efficiency Step-Down Converter
- Output Current up to 600 mA
- Wide VIN Range from 2-V to 6-V for Li-Ion Batteries with
Extended Voltage Range - 2.25-MHz Fixed Frequency Operation
- Power Save Mode at Light Load Currents
- Output Voltage Accuracy in PWM Mode ±1.5%
- 15-µA (Typ) Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Soft Start
- Voltage Positioning at Light Loads
- Available in a Small 2×2×0,8-mm SON Package
- Allows <1-mm Solution Height
- APPLICATIONS
- PDAs, Pocket PCs
- Low Power DSP Supply
- Portable Media Players
- POL applications
The TPS6226x devices are high-efficiency synchronous step-down dc-dc converters optimized for battery powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power mobile phones and other portable applications.
With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, two and three cell alkaline batteries, 3.3-V and 5-V input voltage rails.
The TPS6226x operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.
The Power Save Mode is optimized for low output voltage ripple. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.
The TPS6226x is available in a very small 2×2mm 6-pin SON package.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS6226x-Q1 2.25-MHz 600-mA Step-Down Converter datasheet (Rev. C) | 2012年 7月 23日 | |
| Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023年 12月 6日 | |
| Analog Design Journal | Understanding 100% mode in low-power DC/DC converters | 2018年 6月 22日 | ||
| Analog Design Journal | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017年 10月 24日 | ||
| Analog Design Journal | Testing tips for applying external power to supply outputs without an input voltage | 2016年 10月 24日 | ||
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015年 8月 17日 | ||
| Analog Design Journal | Five steps to a great PCB layout for a step-down converter | 2015年 1月 29日 | ||
| Application note | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 2012年 1月 13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
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TPS62261 Unencrypted PSpice Transient Model Package (Rev. A)
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DRV) | 6 | 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。