TPS63021
- Input voltage range: 1.8 V to 5.5 V
- Adjustable output voltage: 1.2 V to 5.5 V
- Output current for VIN > 2.5 V, VOUT = 3.3 V: 2 A
- High efficiency over the entire load range
- Operating quiescent current: 25 µA
- Power save mode with mode selection
- Average current mode buck-boost
architecture
- Automatic transition between modes
- Fixed frequency operation at 2.4 MHz
- Synchronization possible
- Power good output
- Safety and robust
operation features
- Overtemperature, overvoltage protection
- Load disconnect during shutdown
- Create a custom design using the
- TPS63020 with WEBENCH Power Designer
- TPS63021 with WEBENCH Power Designer
The TPS6302x devices provide a power supply solution for products powered by either a two-cell or three-cell alkaline, NiCd or NiMH battery, a one-cell Li-ion or Li-polymer battery, supercapacitors or other supply rails. Output currents up to 3 A are supported. When using batteries, they can be discharged down to below 2 V. The buck-boost converter is based on a fixed frequency, pulse width modulation (PWM) controller using synchronous rectification to obtain maximum efficiency. At low load currents, the converter enters power save mode to maintain high efficiency over a wide load current range. The power save mode can be disabled, forcing the converter to operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value of 4 A. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip. The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the battery.
The TPS6302x devices operate over a free air temperature range of –40°C to 85°C. The devices are packaged in a 14-pin VSON package measuring 3 mm × 4 mm (DSJ).
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 | TPS6302x High Efficiency Single Inductor Buck-boost Converter with 4-A Switches datasheet (Rev. I) | PDF | HTML | 2019/8/22 | ||
| 應用說明 | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023/12/6 | |||
| 應用說明 | Layer Design for Reducing Radiated EMI of DC to DC Buck-Boost Converters (Rev. A) | PDF | HTML | 2021/6/9 | |||
| 應用說明 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| 應用說明 | Understanding Undervoltage Lockout in Power Devices (Rev. A) | 2018/9/19 | ||||
| 應用說明 | Basic Calculations of a 4 Switch Buck-Boost Power Stage (Rev. B) | 2018/7/9 | ||||
| 應用說明 | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | 2011/9/19 | ||||
| 類比設計期刊 | IQ: What it is, what it isn’t, and how to use it | 2011/6/17 | ||||
| 應用說明 | Minimizing Ringing at the Switch Node of a Boost Converter | 2006/9/15 |
設計與開發
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SLVC808 — Battery Lifetime Estimator
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DSJ) | 14 | 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。