IWATT

IWATT

Switch-mode power supply and converter controllers

About the manufacturer

iWATT Inc. developed analog ICs for power conversion, particularly controllers used in switch-mode supplies and lighting electronics. Devices carrying the brand appear in power adapters, offline converters and LED power applications.

iWATT controllers manage switching stages and aim to reduce losses and system cost. Depending on the design, they employ primary-side regulation approaches and other techniques for controlling the output. The company became part of larger semiconductor businesses, so product lifecycle must be checked against the actual part number.

Specification depends on converter topology, input-voltage range, control method, power-switch drive and protection functions. Substituting a controller without reviewing surrounding components may require substantial redesign of the complete power stage.

Applications

Products and technologies from this manufacturer are relevant to the following applications:

• chargers and power adapters
• offline AC/DC supplies
• LED drivers
• switch-mode converters
• power management
• repair of existing supplies

IWATT products available from Maritex

iWATT devices appear in component ranges as controllers for power supplies and LED applications, matched to a particular converter topology.

Available product groups include:

• AC/DC power-supply controllers
• LED-driver controllers
• primary-side regulation ICs
• converter-control devices

Confirm the reference application, switching frequency, load limits and availability of the original IC.