STMicroelectronics ST1S40IPHR

The ST1S40IPHR is a high-efficiency step-down switching regulator that can provide a regulated output voltage for a variety of applications. It is designed to operate from a wide input voltage range and delivers a high output current while maintaining low output voltage ripple. Functions - Step-Down Regulation: Converts a higher input voltage to a lower output voltage efficiently. - Enable Control: Provides the ability to enable or disable the device, allowing for power management. - Overcurrent Protection: Protects the device from damage due to excessive current. - Thermal Shutdown: Provides safety against overheating by shutting down the device under high-temperature conditions. - Voltage Feedback Loop: Maintains a stable output voltage over varying load conditions. Applications - Power management in computing devices. - Battery-operated gadgets. - Power supply for microcontrollers and microprocessors. - Automotive electronics. - Communication devices and network equipment. - Industrial automation controls. Alternative Parts Some alternative parts to the ST1S40IPHR include: - LM2596: An adjustable step-down regulator with similar high-efficiency characteristics. - TPS561201: A synchronous buck converter offering adjustable voltage output and load capabilities. - LT1763: A low-dropout linear regulator, suitable for less demanding applications. - LM2675: A step-down regulator with a variety of output voltage options. Embedded Modules Embedded modules incorporating the ST1S40IPHR are often found in development boards that require a reliable power supply, such as: - Arduino Shields: Power shields that provide stable voltage rails for various Arduino boards. - Raspberry Pi GPIO power modules: Used to power accessories and peripherals. - Industrial Development Kits: Often include step-down power regulators for powering various sensors and components. Related Q&A Q1: What is the input voltage range for the ST1S40IPHR? A1: The ST1S40IPHR typically supports an input voltage range from 4.5V to 38V. Q2: What is the maximum output current that the ST1S40IPHR can provide? A2: The ST1S40IPHR can provide up to 1.5A of continuous output current. Q3: How does the ST1S40IPHR achieve high efficiency? A3: The ST1S40IPHR achieves high efficiency through its synchronous rectification techniques and optimized switching frequency, which minimizes switching and conduction losses. Q4: Can the ST1S40IPHR operate in a thermal shutdown mode? A4: Yes, the ST1S40IPHR features a thermal shutdown function that protects the device from overheating by shutting it down when a preset temperature limit is exceeded. Q5: Is it possible to adjust the output voltage of the ST1S40IPHR? A5: Yes, the output voltage can be adjusted by selecting appropriate external resistor values for the feedback network according to the datasheet guidelines provided by STMicroelectronics.