The RTQ6056 is a high accuracy current-sense monitor with an I2C and SMBus interface, and the device provides full information for system by reading out the load current and power.

The device monitors both of the drops across sense resistor and the BUS voltage, converts into the current in amperes, and power in watts through internal analog-to-digital converter ADC. The programmable calibration, adjustable conversion time, and averaging function are also built in for more design flexibility.

The RTQ6056 provides a wide temperature environment from -40°C to 125°C and operates with an input voltage from 2.7V to 5.5V. The device senses the current on common-mode bus voltage with 0V to 36V.

The RTQ6056 also provides an alert function with open-drain output, and it provides the full protection by giving a warning to host in over-current, over-voltage and over-power situations.

The RTQ6056 is available in a small MSOP-10 package.


  • Servers, Storage and Network Equipment
  • Portable, Battery-Powered Systems
  • Point of Load (POL) Power Modules
  • Notebook Computers
  • High End Digital TV
Key Spec.
Status Active
Vs (min) (V) 2.7
Vs (max) (V) 5.5
Number of Outputs 1
Voffset (typ) (mV) 0.0025
CMRR (typ) (dB) 140
Package Type MSOP-10
  • I2C and SMBus Compatible Interface
  • Bi-Direction Current Sensing, Available for High-Side or Low-Side Sensing
  • 2.7V to 5.5V Operation Supply Voltage Range
  • Monitor Bus Voltage from 0V to 36V
  • High Accuracy, Max 0.12% Gain Error
  • Low Offset Voltage, Max 10μV Offset
  • Current, Bus Voltage and System Power Reporting
  • Programmable Warning Threshold
  • Over-Current, Over-Voltage and Over-Power Alert
  • MSOP-10 Package
TitleLast UpdateDownload
High-Side or Low-Side Measurement, Bi-Directional Current and Power Monitor with 16-Bit ADC Op Amp/Alert2022/04/11
Technical Documents
TitleLast UpdateDownload
Richtek Selection Guide [Oct., 2022]2022/10/01
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RTQ6056GFMSOP-102500 Request Buy from Distributor