TPS720
- 350-mA High-Performance LDO
- Low Quiescent Current: 38 µA
- Excellent Load Transient Response:
±15 mV for ILOAD = 0 mA to 350 mA in 1 µs - Excellent Line Transient Response:
ΔVOUT = ±2 mV for ΔVBIAS = ±600 mV in 1 µs
ΔVOUT = ±200 µV for ΔVIN = ±400 mV in 1 µs - Low Noise: 48 µVRMS (10 Hz to 100 kHz)
- 80 dB VIN PSRR (10 Hz to 10 kHz)
- 70 dB VBIAS PSRR (10 Hz to 10 kHz)
- Fast Start-Up Time: 140 µs
- Built-In Soft-Start With Monotonic VOUT Rise and Start-Up Current Limited to 100 mA + ILOAD
- Overcurrent and Thermal Protection
- Low Dropout: 110 mV at ILOAD = 350 mA
- Stable with 2.2-µF Output Capacitor
- Available in 1.33 mm × 0.96 mm DSBGA-5 and 2 mm × 2 mm SON-6 Packages
The TPS720 family of dual rail, low-dropout linear regulators (LDOs) offers outstanding ac performance (PSRR, load and line transient response), while consuming a very low quiescent current of 38 µA.
The VBIAS rail that powers the control circuit of the LDO draws very low current (on the order of the quiescent current of the LDO) and can be connected to any power supply that is equal to or greater than 1.4 V above the output voltage. The main power path is through VIN, which can be a lower voltage than VBIAS; it can be as low as VOUT + VDO, increasing the efficiency of the solution in many power-sensitive applications. For example, VIN can be an output of a high-efficiency, DC-DC step-down regulator.
The TPS720 supports a novel feature in which the output of the LDO regulates under light loads when the IN pin is left floating. The light-load drive current is sourced from VBIAS under this condition. This feature is particularly useful in power-saving applications where the DC-DC converter connected to the IN pin is disabled but the LDO is still required to regulate the voltage to a light load.
The TPS720 is stable with ceramic capacitors and uses an advanced BICMOS fabrication process that yields a dropout of 110 mV at a 350-mA output load. The TPS720 has the unique feature of providing a monotonic VOUT rise (overshoot limited to 3%) with VIN inrush current limited to 100 mA + ILOAD with an output capacitor of 2.2 µF.
The TPS720 uses a precision voltage reference and feedback loop to achieve overall accuracy of 2% over load, line, process, and temperature extremes. An ultra-small DSBGA package makes the TPS720 ideal for handheld applications. The TPS720 is also available in a SON-8 package. This family of devices is fully specified over the temperature range of
TJ = –40°C to 125°C.
技术文档
| 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | TPS720 350 mA, Ultra-Low VIN, RF Low-Dropout Linear Regulator With Bias Pin 数据表 (Rev. E) | PDF | HTML | 2015年 9月 30日 | ||
| 应用手册 | LDO 噪声揭秘 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2020年 9月 16日 | |
| 应用手册 | A Topical Index of TI LDO Application Notes (Rev. F) | 2019年 6月 27日 | ||||
| 选择指南 | Low Dropout Regulators Quick Reference Guide (Rev. P) | 2018年 3月 21日 | ||||
| 应用手册 | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 2017年 8月 9日 | |||
| 选择指南 | 低压降稳压器快速参考指南 (Rev. M) | 最新英语版本 (Rev.P) | 2017年 1月 5日 | |||
| 应用手册 | 简化的 LDO PSRR 测量 | 最新英语版本 (Rev.A) | PDF | HTML | 2010年 7月 28日 | ||
| EVM 用户指南 | TPS720xxDRVEVM Evaluation Module | 2010年 4月 29日 | ||||
| 应用手册 | Power Reference Design for the 'C6472, 12V DCDC Controllers, and LDOs | 2010年 3月 26日 | ||||
| 模拟设计期刊 | Q2 2009 Issue Analog Applications Journal | 2009年 5月 1日 | ||||
| 模拟设计期刊 | Taming linear-regulator inrush currents | 2009年 5月 1日 | ||||
| 用户指南 | TPS720xx | 2008年 8月 19日 | ||||
| 应用手册 | Inrush Current Limit in the TPS720xx | 2008年 6月 6日 |
设计和开发
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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| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| DSBGA (YZU) | 5 | Ultra Librarian |
| WSON (DRV) | 6 | Ultra Librarian |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点
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