The **UP672G-AL6-R** is a specific integrated circuit (IC) primarily used in power management applications. It is an ultra-low dropout (ULDO) linear regulator designed to provide a stable voltage supply for high-performance microprocessors and peripheral components. --- ### ## Technical Specifications Overview The following table summarizes the key electrical characteristics of the UP672G-AL6-R: | Parameter | Specification | | :--- | :--- | | **Device Type** | Ultra Low Dropout (ULDO) Linear Regulator | | **Input Voltage Range** | 1.2V to 5.5V | | **Output Current** | Up to 2A (Continuous) | | **Dropout Voltage** | ~150mV @ 2A (Typical) | | **Package Type** | SOT-223-6 | | **Adjustable Output** | Yes (Via external resistor divider) | | **Protection Features** | Thermal Shutdown, Over-Current Protection (OCP) | --- ### ### Key Features and Components 1. **Low Dropout (LDO) Architecture:** The "Ultra-Low" designation means the chip can maintain its regulated output voltage even when the input voltage is only slightly higher than the output (as low as 150mV difference). 2. **Enable Pin (EN):** Allows the system to turn the regulator on or off electronically to save power during standby modes. 3. **Power Good (POK/PG) Signal:** Some variants include a monitoring pin that signals when the output voltage has reached 90% of its target, ensuring the system doesn't start until power is stable. 4. **Feedback (FB) Mechanism:** Uses an internal reference voltage (typically 0.8V) compared against a fraction of the output voltage to maintain precision. --- ### ### Typical Application Circuit To function correctly, the UP672G-AL6-R requires specific external passive components: * **Input Capacitor ($C_{IN}$):** Typically 10µF MLCC to filter input noise. * **Output Capacitor ($C_{OUT}$):** 10µF to 22µF low-ESR ceramic capacitor to ensure loop stability. * **Resistor Divider ($R_1, R_2$):** Connected to the FB pin to set the desired output voltage using the formula: `Vout = 0.8V * (1 + R1 / R2)` --- ### ### Use Cases * **Motherboards:** Powering Northbridge/Southbridge chipsets. * **Graphics Cards:** Providing stable voltage for GPU memory or auxiliary logic. * **Embedded Systems:** Converting 3.3V rails to 1.8V or 1.2V for high-speed SOCs.