Power Reference Designs

Download...and you're done.

Our power supply reference designs are proven circuits built to support common application parameters. Each design has been built and performance tested and comes with comprehensive, standardized documentation, including:

  • Detailed design note
  • Verification test results
  • Schematic
  • Bill of materials
  • PCB artwork

Download the file set to use as-is—and you’re done! Or tweak the design to fit your specific needs. Either way, you’ll significantly reduce development risks while accelerating time-to-market for your designs.

Power Reference Design Selector

Title Maxim Device Input Type VIN (MIN) (V) VIN (MAX) (V) IOUT (A) Single/Multiple Output VOUT (V) POUT (W) Isolated/Non-Isolated Topology CAD Download
MAXREFDES1050
-15V/1.5A Buck-Boost DC-DC Converter Using the Step-Down Controller MAX17504
MAX17504 DC 18 30 1.5 Single -15 22.5 Non-Isolated Buck-Boost
MAXREFDES1205
2.5V/10A, Synchronous Step-Down Converter
Using the MAX20098
MAX20098 DC 4.5 16 10 Single 2.5 25 Non-Isolated Synchronous Buck
MAXREFDES1234
Miniature 5W DC-DC Flyback Converter
Using the MAX17596
MAX17596 DC 24 160 1 Single 5 5 Isolated Flyback
MAXREFDES1194
Five-Output, No-Opto Flyback DC-DC Converter
Using the MAX17690
MAX17690 DC 6 60 Io1 = 50mA
Io2 = 50mA
Io3 = 0.3mA
Io4 = 33mA
Io5 = 0.3mA
Multiple Vo1 = 3.3V
Vo2 = 11V
Vo3 = 10V
Vo4 = 11V
Vo5 = 10V
1.084 Isolated No-Opto Flyback
MAXREFDES1218
24V, 3A Average Current, 4A Peak Current Active Clamp Forward DC-DC Converter
Using the MAX17599
MAX17599 DC 18 36 4 Single 24 96 Isolated Forward
MAXREFDES1200
Two-Layer Board, 3.3V/2.5A, Synchronous Buck DC-DC Converter
Using the MAX17244
MAX17244 DC 12 32 2.5 Single 3.3 8.25 Non-Isolated Buck
MAXREFDES1215
Supercapacitor-based Energy Harvester
Using the MAX17220
MAX17220 DC 2.3 2.7 50m Single 3.3 0.165 Non-Isolated Boost
MAXREFDES1174
-24V/150mA, Negative Output Power Supply
Using the MAX17501
MAX17501 DC 22 30 0.15 Single -24 3.6 Non-Isolated Buck
MAXREFDES1196
24V/4A DC-DC Boost Converter
Using the MAX17499B Step-Up Controller
MAX17499B DC 10 18 4 Single 24 96 Non-Isolated Boost
MAXREFDES1131
0.72V/12A Supply for Xilinx® Ultrascale+ FPGAs
MAX20730 MAX1615 DC 11.4 12.6 12 Single 0.72 8.64 Non-Isolated Synchronous Buck
MAXREFDES1226
Miniature, Low-Profile, 5V/1.5A, Synchronous, No-Opto Flyback DC-DC Converter with 87% Efficiency
Using MAX17690 and MAX17606
MAX17690 MAX17606 DC 17 36 1.5 Single 5 7.5 Isolated Flyback
MAXREFDES1085
Miniature 24W DC-DC Flyback Converter
Using the MAX17596
MAX17596 DC 17 60 1 Single 24 24 Isolated Flyback
MAXREFDES1179
PoE Powered Device and 24V/300mA No-Opto Flyback DC-DC Converter
Using the MAX17690 and MAX5969B
MAX17690 MAX5969B DC 30 60 0.3 Single 24 7.2 Isolated Flyback
MAXREFDES1214
Portable 1.5A USB Charger with Micro-USB Input and USB Standard-A Output
MAX77816 MAX14595 MAX14632 MAX8891 MAX14636 MAX8808X DC 3 4.2 1.5 Single 5 7.5 Non-Isolated Buck-Boost
MAXREFDES1126
0.72V/20A Supply for Xilinx Ultrascale+ FPGAs
MAX20743 MAX1615 DC 11.4 12.6 20 Single 0.72 14.4 Non-Isolated Synchronous Buck
MAXREFDES1227
Miniature 24W, 12V DC-DC Flyback Converter
Using MAX17596
MAX17596 DC 17 60 2 Single 12 24 Isolated Flyback
MAXREFDES1163
±15V/100mA or ±12V/50mA, Iso-Buck DC-DC Converter
Using MAX17681A
MAX17681 DC 17 32 0.1 Multiple ±15 3 Isolated Iso-Buck
MAXREFDES1166
±7V/100mA or ±5V/50mA, Iso-Buck DC-DC Converter
Using MAX17681A
MAX17651
MAX17681
DC 17 36 0.1 Multiple ±7 1.4 Isolated Iso-Buck
MAXREFDES1198
Ultra-Miniature 4.5V to 36V Input and 3.3V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter
MAX17632 DC 4.5 36 2 Single 3.3 6.6 Non-Isolated Buck
MAXREFDES1175
PoE Powered Device and 5V/1.4A No-Opto Flyback DC-DC Converter
Using MAX17690 and MAX5969B
MAX17690
MAX5969B
DC 30 60 1.4 Single 5 7 Isolated Flyback
MAXREFDES1176
PoE Powered Device and Synchronous 5V/1.4A No-Opto Flyback DC-DC Converter
Using MAX17690, MAX17606 and MAX5969B
MAX17690
MAX5969B
MAX17606
DC 30 60 1.4 Single 5 7 Isolated Flyback
MAXREFDES1178
PoE Powered Device and Synchronous 12V/600mA No-Opto Flyback DC-DC Converter
Using MAX17690, MAX17606 and MAX5969B
MAX17690
MAX5969B
DC 30 60 0.6 Single 12 7.2 Isolated Flyback
MAXREFDES1141
2.4W DC-DC Flyback Converter
Using MAX17596
MAX17596 DC 19 29 0.1 Single 24 2.4 Isolated Flyback
MAXREFDES1098
Miniature, 24V/500mA, No-Opto Flyback DC-DC Converter with 92% Efficiency
Using MAX17690
MAX17690 DC 8 28 0.5 Single 24 12 Isolated Flyback
MAXREFDES1104
Miniature, 5V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 90% Efficiency
Using MAX17690 and MAX17606
MAX17690
MAX17606
DC 8 28 2 Single 5 10 Isolated Flyback
MAXREFDES1107
Miniature, 12V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 92.8% Efficiency
Using MAX17690 and MAX17606
MAX17690
MAX17606
DC 18 60 1 Single 12 12 Isolated Flyback
MAXREFDES1172
Miniature, 12V/1A, No-Opto Flyback DC-DC Converter with 90% Efficiency
Using MAX17690
MAX17690 DC 8 28 1 Single 12 12 Isolated Flyback
MAXREFDES1132
2W DC-DC Flyback Converter
Using MAX17596
MAX17596
MAX17606
DC 17 36 0.4 Single 5 2 Isolated Flyback
MAXREFDES1177
PoE Powered Device and 12V/600mA No-Opto Flyback DC-DC Converter
Using MAX17690 and MAX5969B
MAX5969B
MAX17690
DC 30 60 0.6 Single 12 7.2 Isolated FlybackYes
MAXREFDES1167
15V/200mA or 12V/100mA, Iso-Buck DC-DC Converter
Using MAX17681A
MAX17681
MAX17651
DC 17 36 0.1 or 0.2 Multiple 12 or 15 1.2 or 3 Isolated Iso-Buck
MAXREFDES1099
Miniature, 24V/500mA, No-Opto Flyback DC-DC Converter with 93% Efficiency
Using MAX17690
MAX17690 DC 18 60 0.5 Single 24 12 Isolated Flyback
MAXREFDES1105
Miniature, 5V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 90.4% Efficiency
Using MAX17690 and MAX17606
MAX17690
MAX17606
DC 18 60 2 Single 5 10 Isolated FlybackYes
MAXREFDES1106
Miniature, 12V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 92% Efficiency
Using MAX17690 and MAX17606
MAX17690
MAX17606
DC 8 28 1 Single 12 12 Isolated Flyback
MAXREFDES1169
±15V/75mA and ±7.5V/75mA, Iso-Buck DC-DC Converter
Using MAX17681A
MAX17681
MAX17651
DC 17 36 0.075 Multiple -16.5 to 16.5 3.375 Isolated Iso-Buck
MAXREFDES1168
7V/200mA or 5V/100mA, Iso-Buck DC-DC Converter
Using MAX17681A
MAX17681
MAX17651
DC 17 36 0.2 Multiple 5 or 7.6 0.5 or 1.6 Isolated Iso-Buck
MAXREFDES1173
Miniature, 12V/1A, No-Opto Flyback DC-DC Converter with 91.3% Efficiency
Using MAX17690
MAX17690 DC 18 60 1 Single 12 12 Isolated Flyback
MAXREFDES1051
24V/2A, Active Clamp Forward DC-DC Converter
Using MAX17599
MAX17599 DC 18 36 2 Single 24.24 48 Isolated Active Clamp ForwardYes
MAXREFDES1032
5A/12V Step-Down DC-DC Converter with Integrated HS Switch and External LS Switch
Using MAX17506
MAX17506 DC 24 36 5 Single 12 60 Non-Isolated Synchronous Buck
MAXREFDES1047
Two-Layer Board, 5V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter
Using the MAX17504
MAX17504 DC 18 36 3 Single 5 15 Non-Isolated Synchronous Buck
MAXREFDES1186
7.5W 3.3V Offline Flyback Converter
Using MAX17595
MAX17595, MAX17606 AC 176 284 2.27 Single 3.3 7.5 Isolated FlybackYes
MAXREFDES1187
7.5W 5V Offline Flyback Converter
Using the MAX17595
MAX17595, MAX17606 AC 176 284 1.5 Single 5 7.5 Isolated Flyback
MAXREFDES1188
7.5W 12V Offline Flyback Converter
Using MAX17596
MAX17595 AC 176 284 0.625 Single 12 7.5 Isolated Flyback
MAXREFDES1189
7.5W 24V Offline Flyback Converter
Using MAX17595
MAX17595 AC 176 284 0.313 Single 24 7.5 Isolated Flyback
MAXREFDES1190
15W 3.3V Offline Flyback Converter
Using MAX17596
MAX17595, MAX17606 AC 176 284 4.5 Single 3.3 15 Isolated Flyback
MAXREFDES1191
15W 5V Offline Flyback Converter
Using the MAX17595
MAX17595, MAX17606 AC 176 284 3.0 Single 5 15 Isolated Flyback
MAXREFDES1192
15W 12V Offline Flyback Converter
Using the MAX17595
MAX17595 AC 176 284 1.250 Single 12 15 Isolated Flyback
MAXREFDES1193
15W 24V Offline Flyback Converter
Using MAX17595
MAX17595 AC 176 284 0.625 Single 24 15 Isolated Flyback
MAXREFDES1182
3.5W 3.3V Offline Flyback Converter
Using MAX17595
Isolated AC 176 284 1.06 Single 3.3 3.5 Isolated Flyback
MAXREFDES1183
3.5W 5V Offline Flyback Converter
Using MAX17595
MAX17595 AC 176 284 0.7 Single 5 3.5 Isolated Flyback
MAXREFDES1185
3.5W 24V Offline Flyback Converter
Using MAX17595
MAX17595 AC 176 284 0.145 Single 24 3.5 Isolated Flyback
MAXREFDES1184
3.5W 12V Offline Flyback Converter
Using MAX17595
MAX17595 AC 176 284 0.291 Single 12 3.5 Isolated Flyback
MAXREFDES1133
7.5W DC-DC Flyback Converter
Using MAX17596
MAX17596 DC 17 36 1.5 Single 5 7.5 Isolated Flyback
MAXREFDES1122
24W DC-DC Flyback Converter
Using MAX17596
MAX17596 DC 17 36 1 Single 24 24 Isolated FlybackYes
MAXREFDES1142
Ultra miniature Two Layer 4A, 1.8V Step-Down DC-DC Converter with Integrated Switches
Using MAX15051
MAX15051 DC 3 3.6 4 Single 1.8 7.2 Non-Isolated Synchronouse BuckYes
MAXREFDES1045
Two-Layer Board, 5V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter
Using MAX17574
MAX17574 DC 12 48 3 Single 5 15 Non-Isolated Synchronouse Buck
MAXREFDES1170
24V/100mA, Iso-Buck DC-DC Converter
Using MAX17681A
MAX17681 DC 17 36 0.1 Single 25.2 2.4 Isolated Synchronouse Buck
MAXREFDES1012
Miniature, 5.3V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency
Using MAX17690 and MAX17606
MAX17606, MAX17690 DC 8 20 2 Single 5.3 10.6 Isolated Flyback
MAXREFDES1004
Boost, Single-Output, -73V to -35V Input, 5V/100mA Output DC-DC Converter
Using MAX668
MAX668, MAX669 DC -73 -35 0.1 Single 5.1 0.5 Isolated Flyback
MAXREFDES1046
Two-Layer Board, 3.3V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter
Using MAX17574
MAX17574 DC 12 48 3 Single 3.3 9.9 Non-Isolated Synchronouse Buck
MAXREFDES1148
5V/2.5A, Synchronous, No-Opto Isolated PoE DC-DC Converter
Using MAX17690, MAX17606, MAX5969A
MAX17690, MAX17606, MAX5969A DC 37 57 2.5 Single 5 12.8 Isolated FlybackYes
MAXREFDES1149
12V/1A, Synchronous, No-Opto Isolated PoE DC-DC Converter
MAX17690, MAX17606, MAX5969A DC 36 57 1 Single 12 12 Isolated Flyback
MAXREFDES1123
80V/5mA, High-Voltage, Compact Boost Power Supply
Using MAX1523
MAX1523 DC 4.5 5.5 0.0055 Single 80 0.44 Non-Isolated Boost
MAXREFDES1093
MAXREFDES1093: Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 92% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 18 60 1 Single 5 5 Isolated Flyback
MAXREFDES1092
Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 91.5% Efficiency
Using MAX17960 and MAX17606
MAX17690, MAX17606 DC 8 28 1 Single 5 5 Isolated Flyback
MAXREFDES1053
Miniature, 12V/2.5A, Synchronous, No-Opto Flyback DC-DC Converter with 89.6% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 42 56 2.5 Single 12 30 Isolated Flyback
MAXREFDES1103
Miniature, 24V/250mA, No-Opto Flyback DC-DC Converter with 91.7% Efficiency
Using the MAX17690
MAX17690 DC 18 60 0.25 Single 24 6 Isolated Flyback
MAXREFDES1102
Miniature, 24V/250mA, No-Opto Flyback DC-DC Converter with 92% Efficienc
Using the MAX17690
MAX17690 DC 8 28 0.25 Single 24 6 Isolated Flyback
MAXREFDES1101
Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency
Using MAX17690
MAX17690 DC 18 60 0.50 Single 12 6 Isolated Flyback
MAXREFDES1100
Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency
Using MAX17690
MAX17690 DC 8 28 0.5 Single 12 6 Isolated Flyback
MAXREFDES1095
Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 92.8% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 18 60 0.5 Single 12 6 Isolated Flyback
MAXREFDES1094
Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 8 28 0.5 Single 12 6 Isolated Flyback
MAXREFDES1091
Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91% Efficiency
Using MAX17690
MAX17690 DC 18 60 0.25 Single 12 3 Isolated Flyback
MAXREFDES1090
Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91.3% Efficiency
Using the MAX17690
MAX17690 DC 8 28 0.25 Single 12 3 Isolated Flyback
MAXREFDES1089
Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.7% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 18 60 0.25 Single 12 3 Isolated Flyback
MAXREFDES1088
Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 8 28 0.25 Single 12 3 Isolated Flyback
MAXREFDES1087
Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 18 60 0.5 Single 5 2.5 Isolated Flyback
MAXREFDES1086
Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency
Using MAX17690 and MAX17606
MAX17690, MAX17606 DC 8 28 0.5 Single 5 2.5 Isolated Flyback
MAXREFDES1054
Non-Isolated, Single-Output, Synchronous Buck, Step-Down, DC-DC Converter
Using the MAX17506
MAX17506 DC 10 55 5 Single 4 20 Non-Isolated Synchronous Buck
MAXREFDES1048
Two-Layer Board, 3.3V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter
Using the MAX17504
MAX17504 DC 18 36 3 Single 3.3 9.9 Non-Isolated Synchronous Buck
MAXREFDES1040
59.4W, No-Opto Flyback DC-DC Converter
Using MAX17690
MAX17690 DC 18 60 1.1 Single 54 59.4 Isolated Flyback
MAXREFDES1039
64W and 48W Dual Output DC-DC Buck Converter
Using the MAX17559
MAX17559 DC 36 51 2 to 4 Multiple 16 to 24 48 to 64 Non-Isolated Synchronous Buck
MAXREFDES1037
72W Offline Flyback Converter
Using the MAX17595
MAX17595 AC 103 128 3 Single 24 72 Isolated Flyback
MAXREFDES1036
20.25W Offline Flyback Converter
Using MAX17595
MAX17595 AC 195 265 4.5 Single 4.5 20.25 Isolated Flyback
MAXREFDES1034
High-Efficiency Power Supply for TVs
Using MAX17506
MAX17506 DC 11.5 28 5 Single 5 25 Non-Isolated Synchronous BuckYes
MAXREFDES1033
3A/3.3V and 3A/5V Single-Phase, Dual-Output, Synchronous, Step-Down DC-DC Converter
Using the MAX17509
MAX17509 DC 11.5 13 3 Multiple 3.3 to 5 9.9 to 15 Non-Isolated Synchronous Buck
MAXREFDES1009
IEEE 802.3af/at-Compliant, PD Interface with Three Ultra-Small, High-Efficiency, Synchronous DC-DC Buck Converters
MAX5969B, MAX17502 DC 37 57 0.3 to 1 Multiple 5 to 12 13 to 26 Non-Isolated Synchronous Buck
MAXREFDES1022
5V/2A, Synchronous No-Opto Isolated Flyback DC-DC Converter
Using MAX17690 and MAX17606
MAX17690
MAX17606
DC 10 50 2 Single 5 10 Isolated Flyback
MAXREFDES1021
4A, 1.8V Step-Down DC-DC Converter with Integrated Switches
Using MAX15050
MAX15050 DC 2.9 5.5 4 Single 1.8 7.2 Non-Isolated Synchronous Buck
MAXREFDES1020
0.68V Power Supply
Using MAX15118 as a Current-Mode Step-Down Regulator
MAX15118 DC 2.7 4.5 4 Single 0.68 2.7 Non-Isolated Synchronous Buck
MAXREFDES1019
Single-Input to Multiple-Input Buck Converter Circuit
Using MAX17541G and MAX17504
MAX17541G
MAX17504
DC 24 24 0.05 to 2 Multiple -20 to 20 40 Non-Isolated Synchronous Buck
MAXREFDES1018
Boost, Single-Output, DC-DC Converter, 1V to 3.3V Input, 13.5V/6mA Output
Using MAX1606
MAX1606 DC 1 3.3 0.006 Single 13.5 0.081 Non-Isolated BoostYes
MAXREFDES1017
Selectable Single-Output Sepic Converter
Using MAX16990
MAX16990 DC 18 32 0.9 Single 5 or 24 21.6 Non-Isolated Sepic
MAXREFDES1016
6.6W Dual-Phase Buck Converter
Using MAX17509
MAX17509 DC 4.5 16 6 Single 1.1 6.6 Non-Isolated Synchronous Buck
MAXREFDES1014
48V/80mA, No-Opto Isolated Flyback DC-DC Converter
MAX17690 DC 28 32 0.08 Single 49 3.92 Isolated Flyback
MAXREFDES1013
12W Offline Flyback Converter
Using MAX17595
MAX17595 AC 200 240 0.5 Single 24 12 Isolated Flyback
MAXREFDES1010
24V/300mA, No-Opto Isolated Flyback DC-DC Converter
Using MAX17690
MAX17690 DC 19 40 0.3 Single 24 7.2 Isolated Flyback
MAXREFDES1006
0.68V Power Supply
Using MAX15112 as a Current-Mode Step-Down Regulator
MAX15112 DC 2.7 4.5 4 Single 0.68 2.7 Non-Isolated Synchronous Buck
MAXREFDES1003
150mA, 4-Channel LED Driver in SEPIC Configuration
Using MAX16813
MAX16813 DC 8 32 0.6 Single 19 to 24 14 Non-Isolated Sepic
MAXREFDES1002
6W, Synchronous No-Opto Flyback DC-DC Converter
Using MAX17690
MAX17690
MAX17606
DC 18 36 0.5 Single 12 6 Isolated Flyback