The Murata 78SR series synchronous switching regulator, specifically the 40M6585 part number, offers a compact solution for power supply needs with a maximum output of 2A at either 3.3V or 5V. It operates within a wide input voltage range of 8V to 32V DC and achieves efficiencies up to 95%, eliminating the need for heat sinks or fans. The device features excellent load and line regulation, with load regulation at ¬±0.2% and line regulation at ¬±0.35%. Designed for full load operation in ambient temperatures ranging from -40¬8C to +70¬8C, the regulator includes built-in output short-circuit protection and thermal shutdown for enhanced reliability. Its open-frame SIP design minimizes self-heating and occupies a small footprint on the PCB. The 78SR series is a suitable upgrade for older linear regulators, providing improved efficiency and reduced heat generation, making it ideal for battery-powered and low-power applications.
Linear Regulator Replacement DC DC Converter 1 Output 3.3V 2A 8V - 32V Input
DC DC CONVERTER 3.3V 6W
IC, SYNCHRONOUS SWITCHING REGULATOR, SIP-3; Power Supply Approvals:ITE; No. of Outputs:1 Output; Output Power Max:6.6W; Output Current Max:2A; Product Range:78SR Series; DC / DC Converter Mounting:Through Hole; Input Voltage Min:8VDCRoHS Compliant: Yes
| DigiKey | Shenzhen Shengyu Electronics Technology Limited | Newark, An Avnet Company | |
|---|---|---|---|
| Product Category | Power Supplies | Power Supplies | Power Supplies |
| Product Number | 811-1118-ND | 78SR-3.3/2-C | 40M6585 |
| Product Name | DC DC Converters | Power Supplies - Board Mount - DC DC Converters | Ic, Synchronous Switching Regulator, Sip-3; Power Supply Approvals Murata Power Solutions |
| Type | DC-DC Converter; 1 | DC-DC Converter | |
| Technology | Linear Power Supply | Switching Power Supply | Switching Power Supply |
| Form Factor | Board Mount | Board Mount | Board Mount |
| Operating Temperature | -40 to 70 C (-40 to 158 F) | -40 to 70 C (-40 to 158 F) | |
| DC Output Current | 2 amps | 2 amps |
