TPPM0302 - 具有可选 3.3V 或双 5V 输入 POK 的单输出 400mA 3.3V 低压降 (LDO) 稳压器

TPPM0302是TI德州仪器公司的一款单通道LDO产品，TPPM0302是具有可选 3.3V 或双 5V 输入 POK 的单输出 400mA 3.3V 低压降 (LDO) 稳压器，本站介绍了TPPM0302的封装应用图解、特点和优点、功能等，并给出了与TPPM0302相关的TI元器件型号供参考。

TPPM0302 - 具有可选 3.3V 或双 5V 输入 POK 的单输出 400mA 3.3V 低压降 (LDO) 稳压器 - 单通道LDO - 线性稳压器(LDO) - 德州仪器

产品描述

The TPPM0302 is a low-dropout regulator with auxiliary power management that provides a constant 3.3-V supply at the output capable of driving a 400-mA load.

The TPPM0302 provides a regulated power output for systems that have multiple input sources and require a constant voltage source with a low-dropout voltage. This is a single output, multiple input, intelligent power source selection device with a low-dropout regulator for either 5VCC or 5VAUX inputs, and a low-resistance bypass switch for the 3.3VAUX input.

Transitions may occur from one input supply to another without generating a glitch, outside of the specification range, on the 3.3-V output. The device has an incorporated reverse blocking scheme to prevent excess leakage from the input terminals in the event that the output voltage is greater than the input voltage. The output voltage is continually monitored for constant output, and any deviation from the internal set limit (2.8V) is reported by a low signal on the POK\ output.

The input voltage is prioritized in the following order: 5VCC, 5VAUX, and 3.3VAUX.

产品特性

Automatic Input Voltage Source Selection
Glitch-Free Regulated Output
5-V Input Voltage Source Detector With Hysteresis
400-mA Load Current Capability With 5-V or 3.3-V Input Source
Power OK Feature Based on Voltage Supervisor of 3.3VOUT
Low rDS(on) Auxiliary Switch
Thermally Enhanced PowerPADTM Packaging Concept for Efficient Heat Management

PowerPAD is a trademark of Texas Instruments.

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