TPS7A21-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C
- Junction temperature: –40°C to +150°C
- Very low IQ: 6.5µA
- Input voltage range: 2.0V to 6.0V
- Output voltage range: 0.8V to 5.5V (50mV steps)
- High PSRR: 91dB at 1kHz
- Low output voltage noise: 7.7µVRMS
- Low dropout:
- 265mV (maximum) at 500mA (2.5V VOUT)
- Smart EN pulldown
- Output voltage tolerance: ±1% over temperature
- Supports a wide range of ceramic capacitors:
- 1µF to 200µF
- Package:
- 3mm × 3mm wettable flank VSON
- 2mm × 2mm wettable flank WSON
- 2mm × 2mm WSON
The TPS7A21-Q1 is a small, low-dropout (LDO) linear voltage regulator that sources 500mA of output current. The device provides low noise, high PSRR, and excellent load and line transient performance to meet the requirements of RF and other sensitive analog circuits in automotive applications. Innovative design techniques result in low-noise performance without the addition of an external noise bypass capacitor. The TPS7A21-Q1 low quiescent current is a good choice for low-power systems. The 2.0V to 6.0V input voltage range and 0.8V to 5.5V output voltage range support a variety of system requirements.
An internal soft-start circuit helps control inrush current, thus minimizing the input voltage drop during start-up. The LDO is stable with small ceramic capacitors, allowing for a small overall design size.
A smart enable input circuit with an internally controlled pulldown resistor keeps the LDO disabled even when the EN pin is unconnected. This circuit also helps eliminate external components that are otherwise required to pull down the EN input.
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 | TPS7A21-Q1 Automotive, 500mA, Low-Noise, Low-IQ , High-PSRR LDO datasheet (Rev. D) | PDF | HTML | 2025/6/26 | ||
| 功能安全資訊 | TPS7A21-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2024/10/22 |
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 |
| VSON (DRB) | 8 | Ultra Librarian |
訂購與品質
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