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The RT8130B is a high efficiency single phase synchronous Buck DC/DC controller with 5V/12V supply voltage.

The RT8130B has embedded MOSFET gate driver with high driving capability, supporting driving voltage up to 12V for high output current application. This device uses lossless low-side MOSFET RDS(ON) current sense technique for over-current protection with adjustable threshold set by the LGATE pin (LGOCS). Other features include power good indication, enable/disable control and internal soft-start. The RT8130B also provides fault protection functions to protect the power stage output. With above functions, the IC provides customers a cost-effective solution for high efficiency power conversion. The RT8130B is available in the WDFN-10L 3x3 package.

Applications

  • Motherboard, Memory/Chip-set Power
  • Graphic Card, GPU/Memory Core Power
  • Low Voltage, High Current DC/DC Regulator
Key Spec.
RT8130B
Status Active
Vs (typ) (V) 12;5
Vin (min) (V) 2.5
Vin (max) (V) 21
Vout (min) (V) 0.8
Output Adj. Method Resistor
Accuracy (+/- %) 0.875
Freq (typ) (kHz) 300
Iq (typ) (mA) 2
Ext Sync No
Features Adjustable Current Limit;Cycle-by-Cycle Current Limit;Enable Input;Force PWM;OCP;OVP;Power Good;UVP;Voltage Mode Control
Package Type WDFN3x3-10
Features
  • High Light Load Efficiency
  • Single 5V to 12V Driver Voltage
  • Integrated High Driving Capability N-MOSFET Gate Drivers
  • 300kHz Fixed Frequency Internal Oscillator
  • 88% Maximum PWM Duty Cycle
  • Power Good Indicator
  • Enable/Disable Control
  • Internal Soft-Start
  • Lossless Low-Side MOSFET RDS(ON) Current Sensing for Over-Current Fault Monitoring
  • LGATE Over-Current Setting (LGOCS)
  • OCP, UVP, OVP, OTP, UVLO
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT8130BGQWWDFN3x3-101,500 Request Digikey 1,500 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Evaluation Board
Part NumberDistributorStockBuy From Authorized Distributor
EVB_RT8130BGQW Digikey 1 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.
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