STMicroelectronics ST2378ETTR

The ST2378ETTR is a dual-channel, programmable low-dropout linear voltage regulator (LDO) designed for applications where low noise and high accuracy are essential. The device can deliver a stable output voltage with minimal ripple and has features such as thermal protection and overcurrent protection. It is commonly used in battery-operated devices and other sensitive electronic applications. Functions - Low-Dropout Regulation: Maintains a stable output voltage even with minimal input voltage differential. - Programmability: Allows adjustment of output voltage to suit specific application needs. - Overcurrent Protection: Protects the device and the load from excessive current flow. - Thermal Protection: Prevents overheating by shutting down the regulator when the temperature exceeds a safe threshold. - Dual Channel: Supports two independent outputs, enabling multiple voltage supplies from a single IC. Applications - Battery-powered devices (smartphones, tablets) - Portable electronic equipment - Communication devices - Embedded systems requiring stable voltage regulation - Microcontroller and FPGA power supplies Alternative Parts 1. LM117: A three-terminal adjustable voltage regulator similar in function. 2. MCP1700: A low-dropout regulator with slightly different specifications. 3. MIC5205: Another LDO regulator with similar low-noise characteristics. 4. TPS780: A line of low-dropout linear regulators from Texas Instruments. 5. LT1763: A low-noise LDO with high performance specifications. Embedded Modules - Power management modules that integrate the ST2378ETTR for generating multiple voltage rails. - Sensor interface modules that require stable power for operation. - Development boards for prototyping with microcontrollers that necessitate regulated power inputs. Related Q&A Q1: What is the maximum output current for the ST2378ETTR? A1: The ST2378ETTR can typically deliver up to 500 mA of output current, depending on the specific configuration and thermal conditions. Q2: How do I program the output voltage of the ST2378ETTR? A2: The output voltage can be programmed by selecting external resistor values connected to the feedback pin, according to the datasheet specifications. Q3: What are the thermal performance characteristics of the ST2378ETTR? A3: The ST2378ETTR comes with built-in thermal protection that disables the output when the junction temperature exceeds the safe limit, preventing damage due to overheating. Q4: In what applications would you prefer using an LDO like the ST2378ETTR? A4: An LDO like the ST2378ETTR would be preferred in applications requiring low noise, such as audio devices, precision sensors, and radio frequency circuits. Q5: What measures should be taken to ensure the reliability of the ST2378ETTR in circuit designs? A5: To ensure reliability, use proper bypass capacitors on the input and output, maintain good thermal management through heatsinking if necessary, and follow the recommended layout techniques provided in the datasheet.