TPS731
- Stable with or without capacitors of all types
- Input voltage range of 1.7V to 5.5V
- Ultra-low dropout voltage: 30mV typical (150mA load)
- Excellent load transient response—with or without optional output capacitor
- New NMOS topology provides low reverse leakage current
- Low noise: 30µVRMS typical (10kHz to 100kHz)
- 0.5% initial accuracy
- 1% overall accuracy over line, load, and temperature
- Less than 1µA maximum IQ in shutdown mode
- Thermal shutdown and specified minimum and maximum current-limit protection
- Available in multiple output voltage versions:
- Fixed outputs: 1.20V to 5V
- Adjustable outputs: 1.2V to 5.5V
- Custom outputs available
The TPS731 low-dropout (LDO) linear voltage regulator uses an NMOS pass transient in a voltage-follower configuration. This topology is stable using output capacitors with low equivalent series resistance (ESR), and even allows operation without a capacitor. The device also provides high reverse blockage (low reverse current) and ground pin current that is nearly constant over all values of output current.
The TPS731 uses an advanced BiCMOS process to yield high precision while delivering very low dropout voltages and low ground pin current. Current consumption, when not enabled, is less than 1µA and is designed for portable applications. The extremely low output noise (30µVRMS with 0.1µF CNR) is designed for powering VCOs. This device is protected by thermal shutdown and foldback current limit.
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技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS731 Capacitor-Free, NMOS, 150mA, Low-Dropout Regulator With Reverse Current Protection datasheet (Rev. O) | PDF | HTML | 2025年 8月 5日 |
| * | Radiation & reliability report | TPS73125MDBVREP Reliability Report | 2011年 8月 26日 | |
| * | Radiation & reliability report | TPS73133MDBVREP Reliability Report | 2011年 8月 26日 | |
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 2020年 8月 18日 | |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019年 6月 27日 | ||
| Selection guide | Low Dropout Regulators Quick Reference Guide (Rev. P) | 2018年 3月 21日 | ||
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9日 | |
| More literature | DMOS Delivers Dramatic Performance Gains to LDO Regulators (EDN mag) | 2001年 2月 14日 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
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。