2.95V to 6V Input, 3A Output, 2MHz, Synchronous Step-Down Converter

RT8079 Feature Product

Update Alert Share

The RT8079 is a high efficiency step-down converter and capable of delivering 3A output current over a wide input voltage range from 2.95V to 6V.The RT8079 provides accurate regulation for a variety of loads with ±3% accuracy. For reducing inductor size, it provides up to 2MHz switching frequency. The efficiency is maximized through the integrated 45mΩ MOSFETs and 550μA typical supply current.Under voltage lockout voltage of the RT8079 is 2.7V, and it also provides external setting by a resistor network on the enable pin.The RT8079 provides protections such as inductor current limit under voltage lockout and thermal shutdown. The over temperature threshold is 145°C.The RT8079 is available in WQFN-16L 3x3 package.


  • Low-Voltage, High-Density Power Systems
  • Distributed Power Systems
  • Point-of-Load Conversions
  • LCD TV
Key Spec.
Status Active
Vin (min) (V) 2.95
Vin (max) (V) 6
Number of Outputs 1
Vout (min) (V) 0.827
Vout (max) (V) 3.6
Output Adj. Method Resistor
Iout (max) (A) 3
Current Limit (typ) (A) 6.6
Freq (typ) (kHz) 1000
Freq (min) (kHz) 300
Freq (max) (kHz) 2000
Ext Sync Yes
Ron_HS (typ) (mOhm) 45
Ron_LS (typ) (mOhm) 42
Iq (typ) (mA) 0.55
Features Adjustable Frequency;Adjustable Soft-Start;Current Mode Control;Enable Input;External Synchronization;Internal Compensation;OCP;PSM;Power Good;Stable with Ceramic Capacitor;UVP
Package Type WQFN3x3-16
  • Integrated 45mΩ MOSFETs
  • Input Range : 2.95V to 6V
  • Adjustable PWM Frequency : 300kHz to 2MHz
  • Output Current : 3A
  • 95% Efficiency
  • Adjustable Soft-Start
  • Power Good Indicator
  • Enable Control
  • Under Voltage Lockout
  • Current Limit
  • Thermal Shutdown
  • 16-Lead WQFN Package
  • RoHS Compliant and Halogen Free
TitleLast UpdateShareDownload
2.95V to 6V Input, 3A Output, 2MHz, Synchronous Step-Down Converter2012/09/26
Technical Documents
TitleLast UpdateShareDownload
Richtek Wide Input Voltage Range DC/DC Power Solutions for Industrial, Automotive and LED lighting applications2020/12/30
Richtek Selection Guide [Oct., 2020]2020/12/30
TitleLast UpdateShareViews
How to estimate control loop bandwidth from the transient response time?2017/03/30 1354
Reference Design
TitleLast UpdateShareDownload
Richtek Load Transient Tool2021/01/21
Design Tool
TitleLast UpdateShare
Richtek Designer™ Web Simulation Tool : RT8079GQW2020/09/23
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT8079GQWWQFN3x3-161500 Request Buy from Distributor