loading
About Richtek | Contact Us |

The RT9179 is a high performance linear voltage regulator with enable high function and adjustable output with a 1.175V reference voltage. 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.

Applications

  • Battery-Powered Equipment
  • Graphic Card
  • Peripheral Cards
  • PCMCIA Card
Key Spec.
RT9179
Status Active
Vin (min) (V) 3
Vin (max) (V) 5.5
Vout (min) (V) 1.175
Vout (max) (V) 4.5
Output Adj. Method Resistor
Accuracy (+/- %) 1
Iout (max) (mA) 300
Iq (typ) (uA) 150
Vdropout @ rated current (typ) (mV) 300 @ 0.3A
Cout Type Ceramic
Features Enable Input;OCP;Output Discharge;Stable with Ceramic Capacitor
Package Type SOT-25
Features
  • 300mV Dropout @ 300mA
  • 150μA Low Ground Pin Current
  • Excellent Line and Load Regulation
  • <1μA Standby Current in Shutdown Mode
  • Guaranteed 300mA Output Current
  • Stable with 1μF Input and Output Ceramic Capacitor
  • Adjustable Output Voltage Ranges from 1.175V to 4.5V
  • Over-Temperature/Over-Current Protection
  • RoHS Compliant and 100% Lead (Pb)-Free
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Richtek Featured Product Tree [Aug., 2023] Selection Guide2023/08/07
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT9179GBSOT-253,000 Request Digikey 7,897 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Please confirm with our distributor or sales representative for actual stock status.
TOP