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Innovating Power Module Packaging - April/May 21
A systemís power delivery network or PDN is made up of passive and active components such as cables, connectors, AC-DC and DC-DC converters and regulators. As power levels increase to enable new More details...
Power Electronics Europe News
 
Miniature PoL switching regulators replace linear regulators

They are specifically designed to replace linear regulators such as the LM78xx type.

There is no need for a heatsink and are small in size. Four standard models operate from inputs that range from 4.75 to 36V DC,  providing tightly regulated outputs of 3.3, 5.0, -5.0, 12, -12, 15, or -15V DC. Standard features include efficiency as high as 95%, very low noise operation and tight line/load regulation.

All models are approved to EN 60950 and have continuous short circuit protection. The 5.0, 12V and 15V models can be configured to produce a negative output. The MTBF (per MIL HDBK 217F) of the MSR7805WUP series is greater than 2Mhours.

Regulators are fabricated as a miniature, unpotted (open board) unit that is only 10 x 7.2 x 11mm. The pin-out is compatible with LM78xx linear regulators. Each model is specified for operation over the industrial temperature range of -40 to 85°C, with no derating or heat sinking required. Cooling is by free-air convection.

They are a replacement for inefficient linear regulators that often require a heatsink to operate reliably. Applications would include a wide variety of board level systems where PoL regulation is required.




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