TPS71202 - 双路 250mA 输出、超低噪声、高 PSRR 低压降线性稳压器

TPS71202是TI德州仪器公司的一款多通道LDO产品，TPS71202是双路 250mA 输出、超低噪声、高 PSRR 低压降线性稳压器，本站介绍了TPS71202的封装应用图解、特点和优点、功能等，并给出了与TPS71202相关的TI元器件型号供参考。

TPS71202 - 双路 250mA 输出、超低噪声、高 PSRR 低压降线性稳压器 - 多通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The TPS712xx family of low-dropout (LDO) voltage regulators is tailored to noise-sensitive and RF applications. These products feature dual 250 mA LDOs with ultralow noise, high power-supply rejection ratio (PSRR), and fast transient and start-up response. Each regulator output is stable with low-cost 2.2 µF ceramic output capacitors and features very low dropout voltages (125 mV typical at 250 mA). Each regulator achieves fast start-up times (approximately 60 µs with a 0.001 µF bypass capacitor) while consuming very low quiescent current (300 µA typical with both outputs enabled). When the device is placed in standby mode, the supply current is reduced to less than 0.3 µA typical. Each regulator exhibits approximately 32 µrms of output voltage noise with VOUT = 2.8 V and a 0.01 µF noise reduction (NR) capacitor. Applications with analog components that are noise-sensitive, such as portable RF electronics, will benefit from high PSRR, low noise, and fast line and load transient features. The TPS712 family is offered in a thin 3mm × 3mm SON package and is fully specified from –40°C to +125°C (TJ).

产品特性

Dual 250 mA High-Performance RF LDOs
Available in Fixed and Adjustable Voltage Options (1.2 V to 5.5 V)
High PSRR: 65 dB at 10 kHz
UltraLow Noise: 32 µVrms
Fast Start-Up Time: 60 µs
Stable with 2.2 µF Ceramic Capacitor
Excellent Load/Line Transient Response
Very Low Dropout Voltage: 125 mV at 250 mA
Independent Enable Pins
Thermal Shutdown and Independent Current Limit
Available in Thermally-Enhanced SON Package: 3mm × 3mm × 1mm
APPLICATIONS
- Cellular and Cordless Phones
- Wireless PDA/Handheld Products
- PCMCIA/Wireless LAN Applications
- Digital Camera/Camcorder/Internet Audio
- DSP/FPGA/ASIC/Controllers and Processors

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