TPS797 - 具有电源正常输出的超低 IQ、50mA LDO 线性稳压器

TPS797是TI德州仪器公司的一款单通道LDO产品，TPS797是具有电源正常输出的超低 IQ、50mA LDO 线性稳压器，本站介绍了TPS797的封装应用图解、特点和优点、功能等，并给出了与TPS797相关的TI元器件型号供参考。

TPS797 - 具有电源正常输出的超低 IQ、50mA LDO 线性稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The TPS797xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage and ultralow-power operation. The device is stable with any capacitor (> 0.47µF). Therefore, implementations of this device require very little board space due to the miniaturized packaging and potentially small output capacitor. In addition, the family includes an integrated open drain active-high power good (PG) output. Intended for use in microcontroller-based, battery-powered applications, the TPS797xx family low dropout and ultralow-powered operation results in a significant increase in system battery operating life. The small packaging minimizes consumption of board space.

The device is enabled when the applied voltage exceeds the minimum input voltage. The usual PNP pass transistor has been replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low, typically 105mV at 10mA of load current, and is directly proportional to the load current. The quiescent current is ultralow (1.2µA typically) and is stable over the entire range of output load current (0mA to 50mA). When properly configured with a pull-up resistor, the PG output can be used to implement a power-on reset or low battery indicator.

产品特性

50mA Low-Dropout Regulator
Ultralow 1.2µA Quiescent Current at 10mA
5-Pin SC70 (DCK) Package
Integrated Power Good Output
Stable With Any Capacitor (> 0.47µF)
Dropout Voltage Typically 105mV at 10mA (TPS79733)
Over-Current Limitation
–40°C to +85°C Operating Junction Temperature Range

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