Dc-dc converter modules offer very high power density
RECOM RPX modulesā outstanding thermal performance and innovative 3D Power Package technology enable fanless operation at high ambient temperatures while supplying output currents up to 4.0 A.
The RPX series of dc-dc converter modules from RECOM are complete power modules with integrated power transistors and inductors, requiring only input and output capacitors and voltage-setting resistors to form fully functioning power regulators with various maximum current ratings up to 4 A. The RPX modulesā wide input-voltage ranges mean that they can be used in circuits with a supply voltage of 5 V, 12 V, 15 V or 24 V dc.Ā
The RPX-1.0, RPX-1.5, RPX-2.5 and RPX-4.0 power modules are supplied in thermally-enhanced, surface-mount QFN packages that have a small footprint and offer high power density. The 3D power packaging design developed by RECOM features an integrated inductor and a control IC embedded in the substrate, reducing the system footprint. The excellent thermal performance of the RPX modules means that they can operate at temperatures up to at least 85Ā°C without forced-air cooling.Ā
Built-in protection functions include short-circuit protection, over-current limiting and thermal shutdown. A resistor divider on the input allows an under-voltage lockout voltage to be set to protect battery-powered supplies from over-discharge. A resistor divider on the output controls the setting of the output voltage over a very wide range, while an enable input provides for voltage supply sequencing.
Some products in the RPX series are now also offered as -Q variants, qualified to AECāQ100 Grade 1 for operation up to 125Ā°C. These modules include wettable flanks, which facilitate automated optical inspection of the land-grid array solder joints.
All modules are readily available on short lead times from Future Electronics.
| Product Name | Current Rating (A) | Input-voltage Range (V) | Main Output-voltage Range (V) | Package Dimensions |
| RPX-0.5QĀ | 0.5 | 4.0 to 36.0 | 0.8 to 34 | 3 mm x 5 mm x 1.6 mm |
| RPX-1.0 | 1.0 | 4.0 to 36.0 | 0.8 to 30 | 3 mm x 5 mm x 1.6 mm |
| RPX-1.5 | 1.5 | 4.0 to 36.0 | 0.8 to 30 | 3 mm x 5 mm x 1.6 mm |
| RPX-1.5Q | 1.5 | 4.0 to 36.0 | 0.8 to 30 | 3 mm x 5 mm x 1.6 mm |
| RPX-2.5 | 2.5 | 4.5 to 28.0 | 1.2 to 6.0 | 4 mm x 4.5 mm x 2.0 mm |
| RPX-4.0 | 4.0 | 3.8 to 36.0 | 1.0 to 7.0 | 5.0 mm x 5.5 mm x 4.1 mm |