現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
TPS7A52-Q1
- Qualified for Automotive Applications
- AEC-Q100 Qualified for
Automotive Applications:
- Temperature Grade 1: –40°C ≤ TA ≤ +125°C
- HBM ESD Classification Level 2
- CDM ESD Classification Level C4A
- Extended Junction Temperature (TJ) Range: –40°C to +150°C
- Input Voltage Range:
- Without BIAS: 1.4 V to 6.5 V
- With BIAS: 1.1 V to 6.5 V
- Adjustable Output Voltage Range: 0.8 V to 5.2 V
- Low Dropout: 115 mV (max) at 2 A With BIAS
- Output Voltage Noise: 4.4 µVRMS
- 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
- Power-Supply Ripple Rejection:
- 40 dB at 500 kHz
- Adjustable Soft-Start Inrush Control
- Open-Drain, Power-Good (PG) Output
- Packages:
- 3.5-mm × 3.5-mm, 20-Pin VQFN
- 4-mm × 4-mm, 20-Pin VQFNP With Wettable Flanks and High CTE (12 ppm/°C) Mold Compound
The TPS7A52-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 2 A with only 115 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.2 V using an external resistor divider.
The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A52-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high-performance and 5.0-V output capability of the device.
For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A52-Q1 provides optimal system performance.
The versatility of the TPS7A52-Q1 makes the device a component of choice for many demanding applications.
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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 | TPS7A52-Q1 2-A, High-Accuracy, Automotive-Grade, Low-Noise, LDO Voltage Regulator datasheet (Rev. B) | PDF | HTML | 2018/6/26 | ||
| 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 | |||
| 功能安全資訊 | TPS7A52-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2022/9/23 | |||
| 更多文件說明 | Fundamentals of designing with LDOs in auto battery direct connect applications | 2017/2/27 |
設計與開發
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TPS7A52EVM-002 — TPS7A52-Q1 2-A 低 VIN (1.1-V) 低雜訊高準確度超 LDO 電壓穩壓器評估模組
TPS7A52EVM-002 評估模組 (EVM) 爲典型配置設計，用於評估 TPS7A52-Q1 裝置的運作和性能，其為汽車級 2-A 低壓差 (LDO) 電壓穩壓器。
EVM 電路板主要配置爲參考設計，可供需要高達 2 A 動態負載電流的工程應用。
PARALLEL-LDO-CALC — Parallel low-dropout (LDO) calculator
並聯低壓差 (LDO) 計算器是以 Microsoft® Excel® 為基礎的工具，可為使用鎮流器電阻器的並聯 LDO 穩壓器提供最壞情況分析。此工具可幫助使用者判斷所需的並聯 LDO 穩壓器最小數量，以及適合系統要求集的最佳鎮流器電阻。
在並聯應用中使用的常用 LDO 穩壓器的產品規格書資訊會預先填入計算機中。使用者可根據自己的系統需求，評估最符合其系統需求的 LDO 穩壓器裝置。
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFNP (RTK) | 20 | Ultra Librarian |
| VQFN (RGR) | 20 | 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。