The MSR7805WUP series of miniature switching voltage regulators provide up to 1.0-A output current. They are pin-compatible with linear regulators such as the LM78xx but offer 95% efficiency and don’t need a heat sink. Four standard models operate from inputs that range from 6.0 to 36 Vdc, providing tightly regulated outputs of 3.3, 5, –5, 12, –12, 15, or –15 Vdc.
Fabricated as a miniature, unpotted (open-board) unit, the regulator measures 0.689 x 0.453 x 0.295 in. Each model is specified for operation from –40°C to 85°C with no heat sinking required. Cooling is by air convection. All models are approved to EN 60950 and have continuous short circuit protection. The MTBF of the regulator is greater than 2.0 Mh (per MIL HDBK 217F).
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