TPS62262-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
| 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 | TPS6226x-Q1 2.25-MHz 600-mA Step-Down Converter datasheet (Rev. C) | 2012/7/23 | |||
| 應用說明 | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023/12/6 | |||
| 應用說明 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| 類比設計期刊 | Understanding 100% mode in low-power DC/DC converters | 2018/6/22 | ||||
| 類比設計期刊 | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017/10/24 | ||||
| 類比設計期刊 | Testing tips for applying external power to supply outputs without an input voltage | 2016/10/24 | ||||
| 應用說明 | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | PDF | HTML | 2015/8/17 | |||
| 類比設計期刊 | Five steps to a great PCB layout for a step-down converter | 2015/1/29 | ||||
| 應用說明 | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 2012/1/13 | ||||
| 類比設計期刊 | IQ: What it is, what it isn’t, and how to use it | 2011/6/17 |
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)。
TIDA-00346 — 適用於入門級核心應用處理器架構 ADAS 系統的成本最佳化電源供應器解決方案
TIDA-00346 設計可為汽車先進駕駛輔助系統 (ADAS) 應用中的典型入門級應用處理器提供所需的電源軌。 此設計使用數個獨立 DC/DC 電壓穩壓器，以及負載開關與線性穩壓器 (LDO)，為系統單晶片 (SoC) 的處理核心與其他功能提供固定電源電壓。也會實作適用於 DDR 記憶體電源和終端與 CAN 收發器的額外軌。兩個 LM3880 簡單的電源序列器可提供開機和關機排序。 此設計針對汽車應用進行最佳化，並可在 4V 至 18V（瞬態高達 40V）的輸入電壓下運作。
| 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
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