Last Updated on May 26, 2025 by omar Gamaleldin
B0503S-1W Isolated DC-DC Converter SIP-4
The B0503S-1W Isolated DC-DC Converter is a compact and efficient solution designed to convert a 5V DC input to a stable 3.3V DC output, delivering up to 1W of power. This converter is engineered for applications requiring reliable power conversion with electrical isolation between input and output circuits. , it ensures safe operation in systems where electrical separation is critical, such as in distributed power supply systems.
Features:
- Efficiency up to 76%.
- Small footprint.
- Miniature SIP-4 package.
- Operating temperature range: -40°C to +85°C.
- Internal SMD construction.
- Industry-standard pinout.
- No heat sink required.
- No external components required.
- PCB mounting.
Specifications:
| Attribute | Value |
| Category | Power Supply Chip/Power Modules |
| Datasheet | B0503S-1W |
| Mounting Type | Through-hole |
| Output Voltage | 3.3V |
| Output Current (Max) | 303mA |
| Input Voltage(DC) | 4.5V~5.5V |
| Output Channel | 1 |
| Output Power | 1W |
| Function | – |
| Conversion Type | DC-DC |
| Conversion Efficiency | 76% |
Pin configuration:
Applications:
- Distributed power supply systems.
- Pure digital circuits.
- Low frequency analog circuits.
- Relay-driven circuits.
- Data switching circuits.
Package Include:
- 1x B0503S-1W Isolated DC-DC Converter.