RT9161 Datasheet – 300mA, Voltage Regulator ( PDF )

Part Number: RT9161

Function: 300mA, Low Dropout Linear Voltage Regulator

Package: SOT-223 Type

Manufacturer: Richtek Technology

Image and Pinouts:

RT9161 datasheet



The RT9161, RT9161A is a 300/500mA fixed output voltage low dropout linear regulator. Typical ground current is approximately 110μA, from zero to maximum loading conditions. Wide range of available output voltage fits most of applications. Built-in output current-limiting most thermal-limiting provide maximal protection against any fault conditions.

For ease of application, the devices comes in the popular 3-pin SOT-23 (300mA), SOT-89 (300mA), SOT-223 (500mA), or TO-92 packages.


1. Input Voltage Range up to 12V
2. Extremely Tight Load Regulation
3. Fast Transient Response
4. Current-limiting and Thermal-limiting


1. Voltage Regulator for LAN Card, CD-ROM, and DVD
2. Wireless Communication Systems
3. Battery Powered Systems

Other data sheets are available within the file:

RT916125GX, RT916133GV, RT916133GX, RT9161A, RT9161A-18GG


RT9161 Datasheet PDF Download

RT9161 pdf