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The RT6179 is a 4-switch Buck-Boost controller designed for USB power delivery (USB PD). It operates with wide input voltage range from 4.5V to 36V, and the output voltage can be programmable between 3V and 36V. The RT6179 implements peak current mode control mechanism with the programmable constant voltage (CV) and constant current (CC) output to support USB-PD 3.0 SPR mode and 28V of 3.1 EPR mode. With an I2C compatible interface, the RT6179 supports many programmable functions including CV/CC output, switching frequency, and cable voltage drop compensation. Moreover, the RT6179 integrates fully protection such as input UVLO, over/undervoltage protection, cycle-by-cycle current limit, short protection, and over-temperature protection. The RT6179 is available in a WQFN-40L 5x5 package.

Applications

  • Monitor
  • USB Power Delivery
  • Power Bank
Key Spec.
RT6179 RT6179H
Status Active Active
Vin (min) (V) 4.5 4.5
Vin (max) (V) 36 36
Vout (min) (V) 3 3
Vout (max) (V) 36 36
Iout (max) (A) 5 5
Current Limit (typ) (A) 6.5 6.5
Freq (typ) (kHz) 250 250
Freq (min) (kHz) 250 250
Freq (max) (kHz) 1000 1000
Iq (typ) (mA) 3 3
Features Adjustable Current Limit;Adjustable Soft-Start;Constant Voltage and Constant Current Function;Current Mode Control;Enable Input;I2C;Input UVLO;OCP;OTP;OVP;Power Good;Programmable Switching Frequency;SCP;UVP Adjustable Current Limit;Adjustable Soft-Start;Constant Voltage and Constant Current Function;Current Mode Control;Enable Input;I2C;Input UVLO;OCP;OTP;OVP;Power Good;Programmable Switching Frequency;SCP;UVP
Interface I2C I2C
Package Type WQFN5x5-40 WQFN5x5-40
Features
  • Support USB-PD 3.0 SPR Mode and 28V of 3.1 EPR Mode
  • Integrated Buck-Boost Controller:
    ► Wide Input Voltage Range: 4.5V to 36V
    ► Wide Output Voltage Range: 3V to 36V
    ► Peak Current Mode Control
    ► Programmable Switching Frequency (250kHz to 1MHz)
    ► Power Saving Mode Enables Higher Light Load Efficiency
  • AnyPowerTM for Constant Voltage (12.5mV/step, Typ.) and Constant Current (in 9-Bit Resolution) Output Settings
  • I2C Compatible Interface
  • Adjustable Soft-Start Time
  • Programmable Cable Voltage Drop Compensation
  • Built-in Bleeders for Quick VOUT Discharge
  • Power Good Indicator
  • Fully Protection with UVLO, OVP, UVP, OCP, Cycle-by-Cycle Current Limit and OTP
  • WQFN-40L 5x5 Package
Datasheet
TitleLast UpdateDownload
36V, 4-Switch Buck-Boost Controller with I2C Interface2023/08/08
Please confirm with our distributor or sales representative for actual stock status.
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