TPS7A90
- 1.0% accuracy over line, load, and temperature
- Low output noise: 4.7µVRMS (10Hz – 100kHz)
- Low dropout: 100mV (maximum) at 0.5A
- Wide input voltage range: 1.4V to 6.5V
- Wide output voltage range: 0.8V to 5.7V
- High power-supply rejection ratio (PSRR):
- 60dB at DC
- 50dB at 100kHz
- 30dB at 1MHz
- Fast transient response
- Adjustable start-up in-rush control with selectable soft-start charging current
- Open-drain power-good (PG) output
- RθJC = 3.2°C/W
- 2.5mm × 2.5mm, 10-pin WSON package
The TPS7A90 is a low-noise (4.7µVRMS), low-dropout (LDO) voltage regulator capable of sourcing 500mA with only 100mV of maximum dropout to 5V and from 200mV to 5.7V.
The TPS7A90 output is adjustable with external resistors from 0.8V to 5.7V. The TPS7A90 wide input voltage range supports operation as low as 1.4V and up to 6.5V.
With 1% output voltage accuracy (over line, load, and temperature) and soft-start capabilities to reduce in-rush current, the TPS7A90 is designed for powering sensitive analog low-voltage devices (such as voltage-controlled oscillators (VCOs), analog-to-digital converters (ADCs), and digital-to-analog converters [DACs]).
The TPS7A90 is designed to power noise-sensitive components such as components found in high-speed communication, video, medical, or test and measurement applications. The very low 4.7µVRMS output noise and wideband PSRR (30dB at 1MHz) minimizes phase noise and clock jitter. These features maximize performance of clocking devices, ADCs, and DACs.
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 | TPS7A90 500mA, High-Accuracy, Low-Noise LDO Voltage Regulator datasheet (Rev. B) | PDF | HTML | 2026/9/23 | ||
| 白皮書 | Reduce System Noise Using Parallel LDOs | PDF | HTML | 2025/11/3 | |||
| 白皮書 | Parallel LDO Architecture Design Using Ballast Resistors | PDF | HTML | 2022/12/14 | |||
| 白皮書 | Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast | PDF | HTML | 2022/12/13 | |||
| 應用說明 | High-Performance CMOS Image Sensor Power Supply in Industrial Camera and Vision (Rev. A) | 2021/7/30 | ||||
| 選擇指南 | Low Dropout Regulators Quick Reference Guide (Rev. P) | 2018/3/21 |
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 (DSK) | 10 | 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。