N-Channel 30 V 161A (Tc) 140W (Tc) Surface Mount TO-252AA (DPAK) The IRLR7843TRPBF is an N-channel power MOSFET built on Infineon's HEXFET technology platform, originally developed by International Rectifier. It is designed as a low-voltage, high-current switching device intended for applications where minimizing conduction loss and maximizing efficiency are primary design goals. The part is particularly well suited to synchronous switching topologies, where pairs or arrays of MOSFETs alternately conduct to regulate power flow with minimal energy dissipation. This device targets high-density power conversion applications where board space is limited but current demands are substantial, such as notebook computer power delivery, point-of-load converters used in servers, and advanced telecom and datacom equipment. It is commonly found supporting synchronous buck converter stages that step down a higher input rail to a lower output voltage suitable for powering processors, memory, and other low-voltage digital logic. Its low on-resistance characteristic allows it to carry significant current while generating comparatively little resistive heating, which is essential in compact enclosures with constrained thermal budgets. The transistor is fabricated using a refined trench gate process that improves upon earlier HEXFET generations, offering reduced gate charge and lower switching losses alongside its low conduction resistance. This combination makes it effective in both the high-side and low-side positions of a synchronous switching cell, where fast, clean transitions reduce overlap losses and improve overall converter efficiency. The device also offers well-characterized avalanche energy ratings, giving designers confidence in its ruggedness when exposed to transient overvoltage events that can occur during switching, and it presents a very low gate impedance, allowing it to be driven efficiently by standard gate driver circuitry. Mechanically, the part is housed in a surface-mount power package with an exposed tab for enhanced thermal conduction to the host PCB, allowing heat generated during operation to be efficiently transferred away from the silicon die. This package style is widely used in power-dense designs where through-hole packages would be impractical. The device is supplied in a tape-and-reel format suitable for automated assembly and is compliant with RoHS material restrictions, reflecting current environmental and regulatory standards for electronic components. Spec Sheet Identification Part Number: IRLR7843TRPBF Device Family: HEXFET Power MOSFET Manufacturer: Infineon Technologies Functional Classification Device Type: Power MOSFET Channel Type: N-channel Technology: Trench-gate HEXFET (IR MOSFET legacy technology) Logic Level Compatibility: Logic-level gate drive compatible Electrical Characteristics Drain-to-Source Voltage Rating: Low-voltage class, optimized for sub-30V rail applications On-Resistance: Ultra-low on-resistance class Drain Current Capability: High continuous current class Gate Charge: Low gate charge, optimized for fast switching Gate Impedance: Ultra-low gate impedance Avalanche Characteristics: Fully characterized avalanche voltage and current rating Switching & Application Behavior Primary Application: Synchronous buck converter switching stages Suitable Position: High-side and low-side switch positions Target Use Cases: Point-of-load conversion, notebook power delivery, telecom/datacom power systems Thermal & Mechanical Package Type: Surface-mount power package with exposed thermal tab (DPAK-style) Mounting: Surface mount technology (SMT) Thermal Path: Tab-based conduction to PCB for heat dissipation Environmental & Qualification RoHS Compliance: Yes Lifecycle Status: Active production Packaging Format Supply Format: Tape-and-reel, per part suffix designation #IRLR7843 #Infineon #HEXFET #PowerMOSFET #NChannelMOSFET #SynchronousBuck #PowerElectronics #DCDCConverter #PointOfLoad #PowerConversion #DPAK #SMTPackage #RoHSCompliant #SemiconductorIC #EngineeringSpec #ComponentLibrary #CommonPartsLibrary #PowerDensity #LowRDSon #DiscreteSemiconductor #commonpartslibrary #transistor

Non-Isolated PoL Module DC DC Converter 1 Output 1.2 ~ 6V 2.5A 4.5V - 28V Input The RPX-2.5-R is a compact non-isolated buck DC/DC converter module from RECOM Power designed for point-of-load (PoL) power regulation in embedded, industrial, IoT, and portable electronic applications. It integrates a shielded inductor and switching regulator inside a tiny thermally enhanced QFN package, enabling high efficiency and simplified PCB design. Key Features Wide input voltage range: 4.5V to 28V DC Adjustable output voltage: 1.2V to 6V DC Maximum output current: 2.5A High efficiency up to 91% Integrated shielded inductor for reduced EMI Compact low-profile QFN package: approximately 4.5mm × 4mm × 2mm Supports 5V, 12V, and 24V supply systems Built-in protections: Short-circuit protection (SCP) Overcurrent protection (OCP) Overtemperature protection (OTP) Overvoltage protection (OVP) Undervoltage lockout (UVLO) Enable/control pin for power sequencing and shutdown Flip-chip thermal technology for improved heat dissipation Suitable for SMT automated assembly applications Typical Applications Industrial automation systems IoT devices Embedded control boards Medical and imaging equipment Battery-powered systems Telecom and sensor modules Space-constrained power designs

Monitors & Reset Circuits TPS3823A-33DBVR SOT-23-5_L2.9-W1.6-P0.95-LS2.8-BL LCSC Part Number: C702191 JLCPCB Part Class: Extended Part Manufactured by TI(德州仪器) Texas Instruments TPS54xx/TPS545x/TPS546x synchronous step-down DC/DC converter family, wide input voltage buck regulator with integrated MOSFETs, adjustable output voltage, high efficiency operation, power-good indication, enable control, overcurrent and thermal protection, suitable for industrial power supplies, embedded systems, point-of-load regulation and general DC/DC conversion applications.

15µH Shielded Drum Core, Wirewound Inductor 5.45 A 25.8mOhm Max Nonstandard The 7447798151 is a 15 µH shielded wirewound drum core inductor optimized for high current power applications. It features low DC resistance and high saturation current capability, making it suitable for compact, high-frequency power designs. Key Features Inductance: 15 µH High current rating: up to 5.45 A (RMS) Saturation current: ~4 A Low DC resistance: 25.8 mΩ max Shielded construction for low EMI / magnetic leakage High self-resonant frequency: ~19 MHz Wide operating temperature: -40°C to +150°C Compact SMD package (~10.2 mm × 10.2 mm footprint) Typical Applications DC-DC converters (buck / boost) Power supply filtering Automotive and industrial power systems Point-of-load (POL) regulators High-frequency switching circuits #WurthElektronik #WEPDF #PowerInductor #15uH #SMDInductor #ShieldedInductor #PowerElectronics #ElectronicsComponents #SMTComponents #CommonPartsLibrary #Fixed-Inductor

10 µH Shielded Drum Core, Wirewound Inductor 7.5 A 30mOhm Max Nonstandard # Engineering Specification ## Product Name SRP1038A-100M ## General Description SRP1038A-100M is a shielded surface mount power inductor designed for use in high-efficiency DC-DC conversion and power management applications. The device is intended to support energy storage and current smoothing functions in switching regulator circuits, where stable inductance performance and low power loss are critical. The inductor utilizes a ferrite core construction with a shielded magnetic structure to minimize electromagnetic interference and reduce magnetic flux leakage. This enables improved circuit density and reduced noise coupling in compact electronic assemblies. The design is optimized for use in high current power conversion systems, including buck converters, point-of-load regulators, and distributed power architectures. The component is widely used in industrial, automotive, telecommunications, and embedded systems where reliable energy transfer, thermal stability, and efficient power delivery are required. Its surface mount form factor supports automated PCB assembly and compact system integration while maintaining mechanical robustness under thermal and electrical stress. The design emphasizes low direct current resistance, high current handling capability, and stable inductance behavior under load conditions. It is suitable for applications requiring efficient power conversion with minimal energy loss and stable electromagnetic performance. ## Functional Requirements ### Energy Storage The device shall store energy in a magnetic field during switching operation in power conversion circuits. ### Current Filtering The device shall smooth current ripple in switching regulator applications to maintain stable output conditions. ### Electromagnetic Shielding The device shall reduce electromagnetic interference through a shielded magnetic structure. ### Power Conversion Support The component shall support efficient operation in DC-DC conversion systems. ## Electrical Requirements ### Inductive Performance The device shall provide stable inductance characteristics suitable for power conversion and filtering applications. ### Low Loss Operation The inductor shall minimize resistive and core losses to improve overall system efficiency. ### High Current Capability The device shall support operation under elevated current conditions typical of switching power supplies. ### Thermal Stability The inductor shall maintain performance consistency under thermal loading and temperature variation. ## Mechanical Requirements ### Surface Mount Package The device shall be supplied in a surface mount configuration suitable for automated PCB assembly processes. ### Structural Integrity The component shall withstand mechanical stress during assembly, operation, and thermal cycling. ### PCB Integration The design shall support compact layout integration in multilayer printed circuit board systems. ## Environmental Requirements ### Operating Conditions The device shall operate reliably under conditions typical of industrial and embedded electronic systems. ### Thermal Performance The component shall maintain stable operation under continuous power cycling and heat generation. ### Storage and Handling The device shall retain structural and electrical integrity during storage, transportation, and handling. ## Quality Requirements ### Reliability The inductor shall provide consistent long-term performance under continuous electrical and thermal stress. ### Verification Electrical and thermal characteristics shall be validated through appropriate qualification and testing procedures. ### Compliance The product shall conform to applicable standards for magnetic components used in power electronics applications. ## Documentation Requirements Technical documentation shall include application guidance, layout recommendations for switching power designs, thermal considerations, electrical characteristics, and integration practices for DC-DC converter systems. ## Classification Tags #SRP1038A100M #PowerInductor #ShieldedInductor #SMDInductor #MagneticComponent #EnergyStorageInductor #DCDCConverter #BuckConverter #PowerElectronics #SMPSDesign #ElectromagneticCompatibility #EMIShielding #PCBDesign #ElectricalEngineering #EmbeddedPower #IndustrialElectronics #AutomotiveElectronics #CommonPartsLibrary #ComponentLibrary #EngineeringSpecification #PowerManagement #CircuitDesign #HighCurrentInductor

Buck Switching Regulator IC Positive Adjustable 0.6V Output 2A SC-74A, SOT-753 The Texas Instruments TLV62569DBVR is a high-efficiency synchronous step-down (buck) DC-DC converter designed for compact and low-power applications. It converts a higher DC input voltage down to a lower, regulated output voltage with high efficiency and small external component size. It is commonly used in portable electronics, embedded systems, routers, set-top boxes, and battery-powered devices where efficient power conversion and small footprint are important. 🔧 Key Features Input voltage range: 2.5 V to 5.5 V Output current capability: up to 2 A Adjustable output voltage: 0.6 V to VIN (via external resistors) High efficiency: up to ~95% Switching frequency: ~1.5 MHz (allows small inductors/capacitors) Synchronous rectification: improves efficiency by reducing losses Power Save Mode (PSM): boosts efficiency at light load Low quiescent current: ~35 µA typical 100% duty cycle support: low dropout operation 🛡️ Protection & Safety Features Overcurrent protection (OCP) Thermal shutdown protection Internal soft-start (reduces inrush current at startup) Power Good (PG) indicator for system monitoring 📦 Package SOT-23-5 (DBVR) Very small footprint for space-constrained PCB designs ⚙️ Typical Applications Point-of-load (POL) power supplies Wireless routers and networking devices Set-top boxes Battery-powered and portable systems Embedded controllers and IoT devices

Non-Isolated PoL Module DC DC Converter 1 Output 0.8 ~ 6V 10A 6V - 20V Input The LMZ22010TZ/NOPB is a compact, high-efficiency step-down (buck) DC-DC power module from Texas Instruments. It integrates a switching regulator, power MOSFETs, inductor, and compensation components into a single package, simplifying power supply design. This module is capable of delivering up to 10A output current with excellent thermal performance and minimal external components. It is intended for high power density applications such as industrial systems, telecommunications equipment, and embedded processing platforms. Manufacturer Information Manufacturer: Texas Instruments Part Number: LMZ22010TZ/NOPB Product Type: DC-DC Buck Power Module Key Features Integrated power module with inductor and controller Output current up to 10A Wide input voltage range High efficiency operation Adjustable output voltage Built-in protection features (thermal shutdown, overcurrent protection) Power-good output and enable control Requires minimal external components Electrical Characteristics Parameter Value Input Voltage Range 6 V to 20 V Output Voltage Range 0.8 V to 6 V (adjustable) Output Current Up to 10 A Switching Frequency ~500 kHz Efficiency Up to ~95% Operating Temperature Range -40°C to +125°C Package Information Package Type: TO-PMOD (Power Module) Mounting Type: Surface Mount Integrated inductor and power components Optimized for thermal performance Pin Configuration (Typical) Pin Name Description VIN Input supply voltage VOUT Regulated output voltage GND Ground EN Enable input FB Feedback for output adjustment PGOOD Power-good indicator Typical Applications Industrial automation systems Telecom and networking equipment FPGA / DSP / processor power rails Embedded systems Point-of-load regulation Design Considerations Ensure proper PCB layout for heat dissipation Use appropriate input/output capacitors External resistors required to set output voltage Consider airflow for high-current operation #commonpartslibrary #powersupply #dcdc #converter

The TPS54531DDA is a high-efficiency step-down switching regulator designed for converting higher input voltages into regulated lower output voltages. It integrates a power MOSFET, control circuitry, and protection features into a compact package, enabling simplified power supply design for a wide range of industrial, consumer, communication, and embedded applications. The device utilizes current-mode control architecture to provide fast transient response, stable operation, and straightforward loop compensation. It supports a wide input voltage range and delivers efficient power conversion while minimizing external component count. Built-in protection mechanisms enhance system reliability by safeguarding against fault conditions such as overcurrent, undervoltage, and thermal overload. The TPS54531DDA is commonly used in distributed power systems, industrial controllers, networking equipment, telecommunications hardware, battery-powered devices, and embedded computing platforms requiring efficient voltage regulation. Features Integrated high-side power MOSFET High-efficiency buck regulator architecture Wide input voltage operating range Current-mode control operation Adjustable output voltage capability Fast transient response performance Internal soft-start functionality Cycle-by-cycle current limiting protection Thermal shutdown protection Undervoltage lockout protection Frequency compensation support Low standby current operation Compact surface-mount package Suitable for industrial temperature environments Electrical Characteristics Step-down DC/DC conversion topology Fixed switching frequency operation Adjustable output regulation High conversion efficiency across load conditions Stable operation with ceramic output capacitors Integrated power switch architecture Low output voltage ripple performance High load regulation accuracy Applications Industrial automation systems Embedded processors and microcontrollers Communication equipment Networking hardware Distributed power architectures Point-of-load regulators Consumer electronic products Measurement and instrumentation equipment Battery-powered systems Digital control platforms Package Information Package Type: SO PowerPAD package Surface-mount assembly compatible Thermally enhanced package construction Optimized for automated PCB manufacturing Compact footprint for space-constrained designs #commonpartslibrary #integratedcircuit #powermanagement #powersupply #buckconverter #dcdcconverter #switchingregulator #voltageregulator #embeddedsystems #industrialelectronics #powerelectronics #texasinstruments #energyefficiency #electronicsdesign #powersupplycontroller

7.2 µH Shielded Drum Core, Wirewound Inductor 7.9 A 12.8mOhm Max Nonstandard # 7447798720 ## General Description The 7447798720 is a high-performance power inductor manufactured by Würth Elektronik as part of the WE-MAPI series. It is designed for energy storage, filtering, and power conversion applications in modern switching power supplies and DC-DC converter circuits. The component features a magnetically shielded construction that minimizes electromagnetic interference while maintaining excellent current handling capability and low power losses. Its compact surface-mount design and robust mechanical structure make it suitable for industrial automation equipment, telecommunications systems, embedded electronics, automotive-support applications, consumer devices, and high-efficiency power management systems. The inductor is optimized for use in applications requiring stable inductance, low DC resistance, and reliable performance under varying load conditions. ## Key Features ### Magnetic Characteristics * Magnetically shielded construction * Stable inductance performance * High-current handling capability * Low magnetic flux leakage * Optimized energy storage capability * Suitable for high-frequency switching applications ### Electrical Characteristics * Low DC resistance * High efficiency operation * Low core losses * Stable electrical performance * Excellent current saturation behavior * Reliable operation in power conversion circuits ### Mechanical Characteristics * Surface-mount package * Compact footprint * Robust mechanical construction * Automated assembly compatible * High-density PCB design support ### Material Construction * Metal alloy core technology * Shielded magnetic structure * High-temperature materials * RoHS-compliant construction * Lead-free compatible design ### Thermal Characteristics * Efficient heat dissipation * Stable operation under continuous load * Suitable for demanding power applications * Reliable performance across industrial operating conditions ### Environmental Characteristics * Industrial-grade reliability * Long operational service life * Resistance to mechanical stress * Suitable for harsh electronic operating environments ### Application Areas * DC-DC Converters * Switching Power Supplies * Point-of-Load Regulators * Industrial Automation Equipment * Telecommunications Systems * Embedded Electronics * Power Distribution Modules * Consumer Electronics * Energy Management Systems * Battery-Powered Devices * Motor Control Systems * Power Filtering Applications ### Compliance * RoHS Compliant * Lead-Free Compatible * Industrial-Grade Power Inductor Solution ## Manufacturer Würth Elektronik ## Product Family WE-MAPI Molded Power Inductor Series #7447798720 #WurthElektronik #WEMAPI #PowerInductor #ShieldedInductor #SMDInductor #PowerElectronics #DCDCConverter #SwitchingPowerSupply #EmbeddedSystems #IndustrialElectronics #PowerManagement #PCBDesign #ElectronicsEngineering #EnergyStorage