Triple Linear Regulator Controllers

RT9174

The RT9174 is a triple linear regulator controller designed for motherboard application.
The regulators are intended to regulate the computer system AGP (2X/4X) power, the 2.5V clock power, and the 1.8V power for North/South Bridge core voltage and/or cache memory circuits. All controllers can drive NPN or NMOSFET pass transistor. A special scheme employing driver voltage could be higher than V_DD when driving NMOSFET through the 12V power.
The RT9174 future a small SOP-8 package for saving board area. It also builds in current limiting and thermal shutdown protection function.

Applications

Mother Boards Power Supply
Graphic Cards

Key Spec.

	RT9174
Status	Active
Vin (min) (V)	3
Vin (max) (V)	8
Number of Outputs	3
Vout (min) (V)	0.8
Vout (max) (V)	7
Output Adj. Method	Resistor
Accuracy (+/- %)	2.5
Iq (typ) (mA)	800
Cout (min) (uF)	470
Cout Type	Electrolytic
Features	OCP
Package Type	SOP-8

Features

Integrated Three Linear Controllers in a SOP-8 Package
Driving NPN or NMOSFET
Sourcing ( > 100mA) and Sinking ( > 5mA) Driver
Tri-State Output Driver
Low Internal 0.8V Reference
Adjustable Output Voltage Setting
High Output Stability
V_DDQ1.5/3.3V Automatic Changing for AGP
Wide 3V to 8V Input Voltage Range
Current Limiting and Thermal Protection
RoHS Compliant and 100% Lead (Pb)-Free

Datasheet

DS9174-08.pdf

Datasheet

DS9174-08.pdf