The **RTS-053.3-R** is a high-performance, surface-mount (SMD) isolated DC/DC converter manufactured by **RECOM Power**. It belongs to the RTS series, which is designed for applications requiring small footprints and high isolation. --- ### ## Technical Specifications Below are the primary electronic characteristics of the RTS-053.3-R: | Parameter | Specification | | :--- | :--- | | **Input Voltage** | 5V DC (Nominal) | | **Output Voltage** | 3.3V DC | | **Output Current** | 303mA (Max) | | **Power Rating** | 1 Watt | | **Isolation Voltage** | 1kV DC (standard) | | **Efficiency** | ~70% to 75% | | **Package Type** | SMD (Surface Mount Device) | | **Operating Temperature** | -40°C to +85°C (without derating) | --- ### ### Key Internal Features 1. **Galvanic Isolation:** The "R" in the suffix typically denotes a specific reel packaging, but the core design provides 1kV DC isolation between the input and output. This prevents noise or ground loops from interfering with sensitive logic circuits. 2. **Unregulated Output:** This is an unregulated converter. This means the output voltage (3.3V) may fluctuate slightly depending on the load and the stability of the input voltage. 3. **Short Circuit Protection:** It usually includes limited short-circuit protection (typically 1-second duration) to prevent catastrophic failure during faults. 4. **Physical Construction:** It uses an internal toroidal transformer and a switching frequency of approximately 100kHz to achieve its compact SMD form factor. --- ### ### Pin Configuration (Typical SMD) While you should always consult the specific datasheet for the footprint, the standard RTS series layout involves: * **Pin 1:** -Vin (Ground) * **Pin 2:** +Vin (5V Input) * **Pin 5:** -Vout (Ground) * **Pin 8:** +Vout (3.3V Output) * *Note: Other pins may be "No Connection" (NC) or missing depending on the specific SMD package variant.* --- ### ### Common Applications * **Digital Logic Power:** Converting 5V rails to 3.3V for microcontrollers or FPGAs. * **Industrial Controls:** Isolating RS-485 or CAN bus transceivers. * **Sensor Power:** Providing clean, isolated power to analog sensors in noisy environments.