TPS5450DDAR (TPS5450) — SOP8 / SMD8 StepDown (Buck) Converter Pack: 10pcs Key benefits Reliable stepdown regulation: Provides boardlevel DCDC conversion to reduce a higher input voltage to a stable lower output for downstream electronics. Compact surfacemount package: SOP8 (SMD8) footprint saves PCB space and supports automated soldering and assembly. Easy integration: Industrystandard 8pin package and typical pinout make it straightforward to drop into existing powermanagement layouts. Practical for production: Multiplepiece pack suits prototyping and small production runs. What this component does Function: Switching stepdown (buck) regulator IC used to convert a higher DC input to a regulated lower DC output for powering ICs, sensors, and peripherals. Package/format: SOP8 surfacemount device (SMD8), 8pin configuration for PCB mounting and reflow processes. Model identifiers: TPS5450DDAR, commonly referenced as TPS5450. Important attributes Compatibility: Fits standard SOP8 footprints used in many embedded, industrial, and consumer board designs. Size and mounting: Compact SMD8 package for lowprofile assemblies and automated pickandplace. Functionality focus: Designed for boardlevel power conversion where efficient, stable stepdown regulation is required. Performance orientation: A switching regulator topology provides better efficiency and thermal behavior than linear regulators in many applications (refer to manufacturer datasheet for exact electrical limits and performance curves). Typical use scenarios Embedded systems and microcontroller boards: Provide a regulated supply rail for MCUs, sensors, and communication modules when the system supply voltage is higher than the component voltage requirements. Batterypowered devices and portable electronics: Implement a compact, surfacemount buck regulator to extend battery life by converting battery voltage to the required lower core voltages with switching efficiency. Power rails for modules and peripherals: Generate stable supply voltages for FPGAs, memory peripherals, motor controllers, or sensor clusters on industrial and consumer PCBs. Notes for designers Confirm electrical ratings: Consult the TPS5450 datasheet for input/output voltage ranges, switching frequency, maximum current, thermal limits, and recommended external components before final design and layout. PCB layout matters: Follow recommended layout and decoupling guidelines in the manufacturer documentation to achieve stable regulation and thermal performance. Package handling: SOP8 surfacemount package is compatible with standard reflow profiles and automated assembly workflows. Model reference TPS5450DDAR (TPS5450), SOP8 / SMD8, StepDown (Buck) Converter — sold as a pack of 10 pieces.