Designed to simplify design, decrease cost, and reduce size and weight in high-volume consumer applications, the integrated switchers reduce PCB area and component count by 25% with better efficiency than discrete-based circuits. To allow design flexibility and ruggedness, the IRIS Series integrated switchers include over-voltage protection as well as over-temperature and variable over-current protection.

THE IR ADVANTAGE

	Improve efficiency by up to 4.5% compared to industry-best integrated devices with equivalent ratings
	Improve efficency by 1.5% compared to a discrete solution with equivalent MOSFET ratings
	Cut PCB area and component count by 25% compared to discrete-based circuits
	<1W stand-by power meets Blue Angel requirements

APPLICATIONS

	Universal and single input, AC-DC and DC-DC SMPS
	30 to 180W flyback converters
	Monitors, adapters, DVD players, fax machines, printers, set top box and other high-volume consumer applications
	Housekeeping power supplies for large power supplies and motor drives

Up to 4.5% Improvement Over Competitor Solutions These devices have an on-resistance (RDS(on)) as low as 0.9 ohms to reduce conduction losses. By combining a rugged, fully characterized avalanche energy HEXFET® power MOSFET and controller IC into a single package, circuit stray inductance due to the PCB and the discrete packages is reduced, which results in lower switching losses at higher PWM frequencies. In-circuit testing demonstrates that IRIS Series integrated switchers improve efficiency by up to 1.5% compared to a discrete solution with equivalent MOSFET ratings and up to 4.5% compared to industry-best devices. The IRIS Series integrated switchers can operate in either a quasi-resonant or pulse ratio control (PRC) mode. In quasi-resonant mode, switching is done when the drain voltage is at the lowest point of oscillation to reduce switching losses, which increases the overall efficiency at high load conditions. PRC mode is preferred when a low-current standby mode may be required. The IRIS devices can be made to switch between PRC and quasi-resonant modes to achieve higher efficiency and reduced switching losses.

Application Notes
Part No.	Description
AN-1018A	General application note for the IRIS Series Integrated Switchers
AN-1024A	Magnetics design for IRIS Integrated Switchers
AN-1025	Design a power supply using the IRIS Series Integrated Switchers
IRIStran Transformer IRS4007 Design Spreadsheet	Use the "HELP" page of this Excel spreadsheet for guidelines on selecting the best IRIS-Series device for your power supply design.
IRIStran Transformer IRIS4011, 13 or 15 Design Spreadsheet	Use the "HELP" page of this Excel spreadsheet for guidelines on selecting the best IRIS-Series device for your power supply design.

Fully Tested and Documented Reference Designs Application Ref. Design No. Part No. Description Price Order Power Supply DC-DC IRISMPS1 IRIS4007K 25W DC-DC flyback power supply, IRIS4007(K), 48VIN, 5VOUT, 5A IOUT $245.00 Power Supply AC-DC IRISMPS4 IRIS4009K 15W AC-DC flyback power supply, IRIS4009(K), universal input, 12VOUT, 1.25A IOUT $245.00 Power Supply AC-DC IRISMPS2 IRIS4011K 24W AC-DC flyback power supply, IRIS4011(K), universal input, 12VOUT, 2A IOUT $245.00 Power Supply AC-DC IRISMPS3 IRIS4013K 60W AC-DC flyback power supply, IRIS4013(K), universal input, 15VOUT, 4A IOUT $280.00 Power Supply AC-DC IRISMPS5 IRIS4015 90W AC-DC flyback power supply, IRIS4015(K), universal input, 15VOUT, 6A IOUT $280.00 New Products: International Rectifier Introduces New Cost-Effective and Rugged Integrated Switcher For 30W Open Frame Power Supplies more... Cost Effective Integrated Switchers from International Rectifier Shrink Size and Cut Component Count by 25% Compared to Discrete Solutions more...