TPS7A49
- Input Voltage Range: 3 V to 36 V
- Noise:
- 12.7 µVRMS (20 Hz to 20 kHz)
- 15.4 µVRMS (10 Hz to 100 kHz)
- Power-Supply Ripple Rejection:
- 72 dB (120 Hz)
- ≥ 52 dB (10 Hz to 400 kHz)
- Adjustable Output: 1.194 V to 33 V
- Output Current: 150 mA
- Dropout Voltage: 260 mV at 100 mA
- Stable with Ceramic Capacitors ≥ 2.2 µF
- CMOS Logic-Level-Compatible Enable Pin
- Fixed Current-Limit and Thermal Shutdown Protection
- Packages: 8-Pin HVSSOP PowerPAD™ and
3-mm × 3-mm VSON - Operating Temperature Range:
–40°C to 125°C
The TPS7A49 series of devices are positive, high-voltage (36 V), ultralow-noise (15.4 µVRMS, 72-dB PSRR) linear regulators that can source a 150-mA load.
These linear regulators include a CMOS logic-level-compatible enable pin and capacitor-programmable soft-start function that allows for customized power-management schemes. Other available features include built-in current limit and thermal shutdown protection to safeguard the device and system during fault conditions.
The TPS7A49 family is designed using bipolar technology, and is ideal for high-accuracy, high-precision instrumentation applications where clean voltage rails are critical to maximize system performance. This design makes the device an excellent choice to power operational amplifiers, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-performance analog circuitry.
In addition, the TPS7A49 family of linear regulators is suitable for post dc-dc converter regulation. By filtering out the output voltage ripple inherent to dc-dc switching conversion, maximum system performance is provided in sensitive instrumentation, test and measurement, audio, and RF applications.
For applications where positive and negative high-performance rails are required, consider TI’s TPS7A30xx family of negative high-voltage, ultralow-noise linear regulators as well.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPS7A49 36-V, 150-mA, Ultralow-Noise, Positive Linear Regulator 数据表 (Rev. E) | PDF | HTML | 2015-5-26 | ||
| 白皮书 | 揭秘 LDO 开通（启动）时间 | PDF | HTML | PDF | HTML | 2026-4-27 | ||
| 应用手册 | 电路板布局对 LDO 热性能影响的经验分析 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2025-10-23 | |
| 白皮书 | Parallel LDO Architecture Design Using Ballast Resistors | PDF | HTML | 2022-12-14 | |||
| 白皮书 | Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast | PDF | HTML | 2022-12-13 | |||
| 应用手册 | A Topical Index of TI LDO Application Notes (Rev. F) | 2019-6-27 | ||||
| 应用手册 | Accurate Thermal Calculations on the Back of a Napkin | 2019-6-3 | ||||
| 电子书 | LDO Basics (Rev. A) | 2019-4-8 | ||||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 选择指南 | Low Dropout Regulators Quick Reference Guide (Rev. P) | 2018-3-21 | ||||
| 技术文章 | LDO basics: dropout | PDF | HTML | 2017-3-16 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
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TPS7A30-49EVM-567 — TPS7A3001 和 TPS7A4901 低压降 (LDO) 线性稳压器评估模块
PMLKLDOEVM — 使用 TPS7A4901 和 TPS7A8300 的 TI-PMLK LDO 实验板
我们的 TI-PMLK LDO 实验板属于 TI 电源管理实验室套件 (TI-PMLK) 系列。TI-PMLK 系列支持实践学习，有助于巩固电源知识。模块化设计使您能够获得个性化的 TI-PMLK 系列学习体验，最大程度加深对电源设计的系统理解。TI-PMLK LDO 实验板采用 TPS7A4901 和 TPS7A8300 低压降 (LDO) 电压稳压器。TI-PMLK LDO 实验板实验室手册 (PMLKLDOEVMB) 介绍了理论和实验，涵盖实际应用中稳态、瞬态和动态条件下的各种测试。
许多 TI 参考设计都包括 TPS7A49
通过我们的参考设计选择工具来审查并确定最适用于您应用和参数的设计。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | Ultra Librarian |
| HVSSOP (DGN) | 8 | Ultra Librarian |
订购和质量
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