## Overview of YEV09T10-R The **YEV09T10-R** is a high-performance, non-isolated point-of-load (POL) DC-DC converter. It belongs to the Y-Series family of power modules designed to provide precise voltage regulation for sensitive electronic components like FPGAs, ASICs, and microprocessors. --- ### Technical Specifications | Parameter | Specification | | :--- | :--- | | **Input Voltage Range** | 4.5V to 13.8V DC | | **Output Voltage Range** | 0.59V to 5.1V DC (Adjustable) | | **Max Output Current** | 10 Amperes | | **Efficiency** | Up to 94% | | **Package Style** | SIP (Single In-line Package) / Through-hole | | **Control Topology** | Synchronous Buck Regulator | --- ### Key Electronic Components & Features 1. **Synchronous Buck Controller:** The core of the YEV09T10-R is a synchronous buck converter circuit. Unlike standard buck converters, it uses a MOSFET instead of a diode for the low-side switch to minimize power loss and maximize efficiency. 2. **Voltage Trimming (Pin Programming):** The output voltage is not fixed. It is determined by an external resistor connected between the **Trim** pin and **GND**. This allows the same part to be used for various voltage rails (e.g., 1.2V, 1.8V, 3.3V). 3. **Protection Circuitry:** * **Over-Current Protection (OCP):** Automatically limits current during a short circuit or overload. * **Over-Temperature Protection (OTP):** Shuts down the module if the internal temperature exceeds safe operating limits. * **Under-Voltage Lockout (UVLO):** Prevents the device from operating if the input voltage is too low to ensure stable output. 4. **Remote Sense:** This feature allows the converter to compensate for voltage drops across PCB traces by sensing the voltage directly at the load, ensuring high accuracy. --- ### Typical Pin Configuration | Pin Number | Name | Description | | :--- | :--- | :--- | | 1 | +Vout | Positive Output Voltage | | 2 | Trim | Output Voltage Programming Pin | | 3 | GND | Ground / Common Return | | 4 | +Vin | Positive Input Voltage | | 5 | Remote On/Off | Logic level to enable/disable the module | --- ### Application Usage These modules are commonly found in: * **Networking Gear:** Routers and switches. * **Industrial Systems:** Automation and control boards. * **Data Centers:** Distributed power architectures where a 12V bus is stepped down to lower voltages for digital ICs.