RT9179 is a high performance linear voltage regulator with enable high function and adjustable output with a 1.175V reference voltage from Richtek. It operates from an input of 3V to 5.5V and provides output current up to 300mA with two external resistors to set the output voltage ranges from 1.175V to 4.5V. The RT9179 has superior regulation over variations in line and load. Also it provides fast respond to step changes in load. Other features include over-current and over- temperature protection. The device has enable pin to reduce power consumption in shutdown mode. The devices is available in the popular SOT-23-5 package.
The RT9179 is a high‑performance linear voltage regulator with enable function and an adjustable output. It operates from a 3 V to 5.5 V input and can deliver up to 300 mA, with output voltage selectable between 1.175 V and 4.5 V.
The document includes electrical characteristics, pin descriptions, typical application circuits, thermal considerations, PCB layout guidelines, and mechanical dimensions for the SOT‑23‑5 package.
| Maximum Output Current | 300 mA |
|---|---|
| Dropout Voltage | 300 mV @ 300 mA |
| Reference Voltage | 1.175 V |
| Input Voltage Range | 3 V to 5.5 V |
| Adjustable Output Voltage Range | 1.175 V to 4.5 V |
| Package Type | SOT‑23‑5 |
| Thermal Shutdown Temperature | 170 °C |
The RT9179 can deliver up to 300 mA of output current.
It operates from an input voltage of 3 V to 5.5 V.
The device includes over‑current and over‑temperature protection, and a shutdown mode to reduce power consumption.
The RT9179 is available in a SOT‑23‑5 surface‑mount package.