INTERNATIONAL RECTIFIER - THE POWER MANAGEMENT LEADER
DC-DC Reference Designs
International Rectifier offers a wide range of reference designs for DC-DC applications. Each reference design kit includes a fully assembled and tested demo board along with applicable datasheets and application notes.
Download this overview for a full feature list of each kit.
Featured Kits
IRDC3640
25A, 600kHz, Synchronous Buck Controller Reference Design
  • Featuring IR3640M PWM Controller
  • Programmable soft-start ramp
  • Power Good
  • Thermal protection
  • Over voltage and over current protection
  • Programmable switching frequency
  • Tracking input
  • Enable input
  • Input under-voltage lockout for proper start-up
  • Pre-bias start-up.
IRDC38 Series
Integrated Point of Load DC-DC Voltage Regulator
  • Programmable Soft Start
  • Programmable Over Current Protection
  • Pre-Bias Start Up
Reference Design Featured Part Feature Vin
(V)
Vout
(V)
Imax
(A)
kHz
IRDC3820 IR3820MPbF Power Good 12 1.8 12 600
IRDC3820A IR3820AMPbF Power Good 12 1.8 14 300
IRDC3821 IR3821MPbF Power Good 12 1.8 7 600
IRDC3821A IR3821AMPbF Power Good 12 1.8 9 300
IRDC3822 IR3822MPbF Power Good 12 1.8 4 600
IRDC3822A IR3822AMPbF Power Good 12 1.8 6 300
IRDC3810 IR3810MPbF Tracking 12 0.75 12 600
IRDC3811 IR3811MPbF Tracking 12 0.75 7 600
IRDC3812 IR3812MPbF Tracking 12 0.75 4 600
IRDC3802 IR3802MPbF Tracking 12 3.3 4 600
IRDC3802A IR3802AMPbF Tracking 12 3.3 6 300
IRDC3622D
Dual Output Reference Design using Dual Synchronous Buck Controller
  • Featuring IR3622MPbF with IRF6622 and IRF6629 DirectFET MOSFETs
  • 12 Vin, 2.5 Vout @ 20A Iout and 1.8 Vout @ 20A Iout
  • 350 KHz switching frequency per output
  • Current sharing reference design also available- see IRDC3622S
IRDC3651
Wide Input Synchronous Buck Regulator
  • Ideal for onboard DC to DC applications
  • 48 Vin, 3.3 Vout @ 10A Iout
  • 100 KHz switching frequency
  • Featuring IR3651SPBF controller
  • Foot print compatible with either DirectFETs or SO8 MOSFETs
IRDC3621
2-Phase Dual Sync Buck with Oscillator Synchronization
  • Featuring IR3621M PWM Controller
  • Pie-bias Startup
  • Ideal for high current onboard DC to DC applications
  • Programmable switching frequency up to 500 kHz
  • 12 Vin, 2.5 V and 1.8 V out @ 10A each

Reference Design Part Number Description
IRDC3622D IR3622MPBF Dual Output Reference Design using Dual Synchronous Buck Controller
IRDC3622S IR3622MPBF Current Sharing Reference Design using Dual Channel Synchronous Buck Controller
IRDC3637 IR3637 Reference design kit featuring High Performance Synchronous Buck Controller
IRDC3640 IR3640 25A, 600kHz, Synchronous Buck Controller Reference Design
IRDC3651 IR3651PBF Reference design kit featuring Wide Input Synchronous Buck Regulator
IRDC3810 IR3810 Integrated Point of Load DC-DC Voltage Regulator with Tracking with Vin 12V, Vout 0.75V and Imax 12A
IRDC3811 IR3811 Integrated Point of Load DC-DC Voltage Regulator with Tracking with Vin 12V, Vout 0.75V and Imax 7A
IRDC3812 IR3812 Integrated Point of Load DC-DC Voltage Regulator with Tracking with Vin 12V, Vout 0.75V and Imax 4A
IRDC3820 IR3820 Integrated Point of Load DC-DC Voltage Regulator with PowerGOOD with Vin 12V, Vout 1.8V and Imax 12A
IRDC3820A IR3820A Integrated Point of Load DC-DC Voltage Regulator with PowerGOOD with Vin 12V, Vout 1.8V and Imax 14A
IRDC3821 IR3821 Integrated Point of Load DC-DC Voltage Regulator with PowerGOOD with Vin 12V, Vout 1.8V and Imax 7A
IRDC3821A IR3821A Integrated Point of Load DC-DC Voltage Regulator with PowerGOOD with Vin 12V, Vout 1.8V and Imax 9A
IRDC3822 IR3822 Integrated Point of Load DC-DC Voltage Regulator with PowerGOOD with Vin 12V, Vout 1.8V and Imax 4A
IRDC3822A IR3822A Integrated Point of Load DC-DC Voltage Regulator with PowerGOOD with Vin 12V, Vout 1.8V and Imax 6A
IRDCiP1201-A iP1201 2-phase, 30A, 3.14-5.5VIN, 0.8-3.3VOUT sychronous buck converter reference design
IRDCiP1202-A iP1202 2-phase, 30A, 5.5-13.2VIN, 0.8-3.3VOUT sychronous buck converter reference design
IRDCiP1206-A iP1206 1-phase 300 kHz, 30A, 7.5-14.5V IN, 0.8-5.5VOUT sychronous buck converter reference design
IRDCiP1206-B iP1206 2-phase 300 kHz, 30A, 7.5-14.5V IN, 0.8-8.0VOUT sychronous buck converter reference design
IRDCiP2005A-A iP2005A 2-phase, 80A, 9.5-13.2VIN, 0.8-1.6VOUT synchronous buck converter

ARCHIVED KITS
A limited supply of these archived reference designs still may be available. To learn if quantities are available in your area, please click on the reference design part number listed below, then select your region and click on “Check Availability.”
Reference Design Part Number Description
IRDC2085S-DF IR2085S DC Bus Converter using IRF6603 secondary DirectFETs
IRDC2085S-S IR2085S DC Bus Converter using IRF7832 secondary FETs
IRDC2086-330W IR2086S Full bridge DC Bus Converter using IR2086S controller, IR6621, IR6635, IR6646 and IRF73830 FETs
IRDC2086S-DF IR2086S Full bridge DC Bus Converter using IRF7493 & IRF6603 FETs
IRDC3037 IRU3037 8-pin synchronous PWM controller, 200 KHz
IRDC3037A IRU3037A 8-pin synchronous PWM controller, 400 KHz
IRDC3065 IRU3065 Positive to Negative Voltage Converter
IRDC3146 IRU3146 Reference design kit featuring High Performance Dual Synchronous Buck Controller
IRDC3621 IR3621M Reference design kit featuring High Performance Dual Synchronous Buck Controller
IRDC3624 IR3624 Reference design kit featuring High Performance Synchronous Buck Controller
IRDC5001-LS48V IR5001 -48V Active ORing for carrier class system boards
IRDC5001-LS370W IR5001 -48V Active ORing for carrier class system boards
IRDCiP1203-A iP1203 1-phase, 15A, 5.5-13.2VIN, 1.0-3.3VOUT sychronous buck converter reference design
IRDCiP2001-A iP2001 2-phase, 40A, 5-12VIN, 1-2VOUT multiphase buck converter reference design
IRDCiP2001-B iP2001 3-phase, 60A, 5-12VIN, 1-2VOUT multiphase buck converter reference design
IRDCiP2001-C iP2001 4-phase, 80A, 5-12VIN, 1-2VOUT multiphase buck converter reference design
IRDCiP2002-C iP2002 4-phase, 120A, 6.5-12VIN, 0.8-3.3VOUT multiphase buck converter reference design
IRDCiP2003A-C iP2003A 4-phase, 160A, 5-12VIN, 0.8-3.3VOUT 4MHz Switching Frequency multiphase buck converter reference design
IRISMPS1 IRIS4007K DC-DC flyback power supply, IRIS4007(K), 48VIN, 5VOUT, 5A IOUT

 
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