IR3721
DATA SHEET
Power Monitor IC with Analog Output
FEATURES
Accurate TruePowerTM monitor
• 2.
5% static accuracy
• Minimizes dynamic errors Minimizes power dissipation
• 5mV - 150mV full scale current range Versatile
• Monitors power or current
• Single buck or multiphase converters
• Inductor DCR or resistive shunt sensing Simple add-on to existing converters 10 pin 3x3 DFN lead free package RoHS compliant
DESCRIPTION
The IR3721 is a versatile power or current monitor IC for low-
voltage DC-DC converters.
The IR3721 monitors the inductor current in buck or multiphase converters using either a current sensing resistor or the inductor’s winding resistance (DCR).
The output (DI)...