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功能相同，但針腳輸出與所比較的裝置不同。
TPS622314-Q1
- Qualified for Automotive Applications
- Up to 3.8-MHz Switch Frequency
- Up to 94% Efficiency
- Output Peak Current up to 500 mA
- Excellent AC and Transient Load Regulation
- High PSRR (up to 90 dB)
- Small External Output-Filter Components 1 µH
and 4.7 µF - VIN range from 2.05 V to 6 V
- Optimized Power Save Mode For Low Output-
Ripple Voltage - Forced PWM Mode Operation
- Typical 22-µA Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Small 1 × 1.5 × 0.6-mm3 SON Package
- 12-mm2 Minimum Solution Size
- Supports 0.6-mm Maximum Solution Height
- Soft Start With 100-µs (Typical) Start-Up Time
The TPS6223x-Q1 device family is a high-frequency, synchronous step-down DC-DC converter ideal for space-optimized automotive and industrial applications. The device supports up to 500-mA output current and allows the use of tiny and low-cost chip inductors and capacitors.
With a wide input-voltage range of 2.05 V to 6 V, the device can be powered by a preregulated voltage rail or Li-Ion batteries with extended voltage range. Two different fixed-output voltage versions are available at 1.5 V and 1.8 V.
The TPS6223x-Q1 series features switch frequency up to 3.8 MHz. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.
Because of its excellent PSRR and AC load regulation performance, the device is also suitable to replace linear regulators to obtain better power conversion efficiency.
The Power Save Mode in TPS6223x-Q1 reduces the quiescent current consumption down to 22 µA during light load operation. It is optimized to achieve very low output voltage ripple even with small external component and features excellent AC load regulation.
For noise-sensitive applications, the device can be forced to PWM Mode operation over the entire load range by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6223x-Q1 is available in a 1-mm × 1.5-mm2 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 | TPS62231x-Q1 3-MHz Ultra-Small Step-Down Converter in 1 × 1.5 SON Package datasheet (Rev. A) | PDF | HTML | 2016/3/7 | ||
| 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 | ||||
| 類比設計期刊 | Understanding frequency variation in the DCS-Control(TM) topology | 2015/10/30 | ||||
| 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 | ||||
| 類比設計期刊 | High-efficiency, low-ripple DCS-Control offers seamless PWM/pwr-save transitions | 2013/7/25 |
設計與開發
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TPS622312EVM-574 — 適用於 TPS622312、TPS622313、TPS622314 超小型降壓轉換器 (1.3、1.5、2)V 的評估模組
The Texas Instruments TPS622312EVM-574 evaluation module helps designers evaluate the operation and performance of the TPS6223x family of devices. These devices are high-efficiency, ultra-small size, buck converters that switch at up to 3 MHz. This user's guide includes setup instructions, a (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| USON (DRY) | 6 | Ultra Librarian |