Buck, Buck-Boost Regulator Positive Output Step-Down, Step-Up/Step-Down - DC-DC Controller IC 20-HTSSOP #RegulatorSwitching #commonpartslibrary

Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3.5A SOT-23-6 Thin, TSOT-23-6 The LMR51635YFDDCR specification defines the engineering requirements for a synchronous step-down DC-DC converter integrated circuit designed for high-efficiency power regulation in embedded and industrial electronic systems. This specification establishes the functional, electrical, mechanical, thermal, environmental, and quality requirements necessary to ensure stable voltage conversion, efficient power management, and long-term operational reliability. The device is intended for use in industrial automation, telecommunications equipment, consumer electronics, test and measurement instruments, distributed power systems, and embedded applications requiring regulated low-voltage power rails from higher-voltage DC sources. It integrates high-performance switching circuitry to provide efficient voltage conversion while minimizing external component count and overall system power loss. Engineering Requirements The DC-DC converter shall be manufactured using qualified semiconductor fabrication processes and high-quality materials to ensure consistent electrical performance, low power consumption, and reliable long-term operation. The device shall maintain stable functionality under specified input voltage, output load, temperature, and environmental operating conditions. Electrical characteristics shall provide accurate output voltage regulation, high conversion efficiency, low output ripple, and fast transient response during load and input voltage variations. The converter shall maintain stable switching operation while supporting continuous and dynamic power delivery with minimal performance degradation. The integrated control architecture shall ensure reliable startup, controlled shutdown, and stable operation under varying load conditions. Built-in protection mechanisms shall support safe operation during abnormal conditions, including overload, overcurrent, thermal stress, and short-circuit events, thereby enhancing overall system reliability. Thermal performance shall support continuous operation within the specified junction temperature range while maintaining electrical integrity and long-term reliability. The package shall be suitable for automated surface-mount assembly and compatible with standard solder reflow manufacturing processes. Mechanical construction shall withstand thermal cycling, vibration, mechanical handling, and environmental exposure without degradation of electrical or mechanical performance. Workmanship shall be free from defects including contamination, package cracking, bond failures, lead deformation, or structural inconsistencies that could adversely affect device functionality or reliability. Inspection, validation, and testing shall be conducted using calibrated equipment and controlled quality procedures to verify compliance with engineering and manufacturing requirements. Any deviation from this specification shall require formal engineering evaluation, documented technical justification, and approval through the established engineering change control process before implementation. Documentation Supporting documentation shall include engineering drawings, electrical performance specifications, application guidelines, thermal characterization reports, qualification records, inspection reports, reliability data, material declarations, and revision-controlled manufacturing documentation. All documentation shall be maintained under formal configuration management and quality assurance systems to ensure complete product traceability. Revision Control Any modification to this specification shall be managed through the formal engineering change management process. All revisions shall undergo technical review, validation, and approval before release to ensure continued compliance with design intent and applicable engineering standards. #EngineeringSpecification #DCDCConverter #BuckConverter #PowerManagement #PowerElectronics #EmbeddedSystems #IndustrialElectronics #VoltageRegulator #QualityAssurance #EngineeringDocumentation

LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Analog, PWM Dimming 4A 14-VSON (4.5x3) #commonpartslibrary #integratedcircuit #powermanagement #leddrivers

LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Analog, PWM Dimming 1.5A 8-MSOP-EP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LED-Driver #AL8860

Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-VQFN (3.5x4.5) #commonpartslibrary #integratedcircuit #powermanagement #DCDCcontroller

LED Driver IC 1 Output DC DC Controller Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming - 16-QFN (3x3) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LEDdriver

Buck Regulator Positive Output Step-Down DC-DC Controller IC 40-VQFN (6x6) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #DCDC-Switching controller #LM5143

Buck Switching Regulator IC Positive Fixed 3.3V 1 Output 2A 8-SOIC (0.154", 3.90mm Width) # L6982N33DR ## General Description The L6982N33DR is a high-efficiency synchronous step-down switching regulator manufactured by STMicroelectronics. It is designed to provide a fixed regulated output voltage from a wide input voltage range while maintaining excellent conversion efficiency and low power dissipation. The device integrates high-side and low-side power MOSFETs, control circuitry, protection features, and compensation functions within a compact package, reducing external component count and simplifying power supply design. Its robust architecture makes it suitable for industrial automation systems, distributed power architectures, telecommunications equipment, embedded systems, consumer electronics, smart devices, and battery-powered applications requiring efficient DC-to-DC voltage conversion. ## Key Features ### Power Conversion Architecture * Synchronous buck regulator topology * Fixed output voltage regulation * Integrated power MOSFETs * High-efficiency power conversion * Optimized switching performance * Reduced external component requirements ### Electrical Characteristics * Wide input voltage operating range * Stable output voltage regulation * High conversion efficiency * Low standby power consumption * Fast transient response * Low output ripple performance ### Control Features * Current-mode control architecture * Internal compensation circuitry * Soft-start functionality * Frequency synchronization capability * Stable operation under varying load conditions ### Protection Features * Overcurrent protection * Short-circuit protection * Thermal shutdown protection * Undervoltage lockout protection * Safe startup operation * Enhanced system reliability ### Power Management * Low-power operating modes * Energy-efficient design * Suitable for battery-powered systems * Optimized thermal performance * Reduced power dissipation ### Package Characteristics * Surface-mount package * Compact footprint * Automated assembly compatible * High-density PCB design support * Industrial-grade packaging ### Material Construction * Monolithic integrated power management solution * Lead-free package materials * RoHS-compliant construction * High-reliability semiconductor technology ### Environmental Characteristics * Suitable for industrial operating environments * Long operational service life * Reliable continuous operation * Robust thermal performance ### Application Areas * Industrial Automation Equipment * Embedded Systems * Microcontroller Power Supplies * FPGA and Processor Power Rails * Telecommunications Equipment * Smart Metering Systems * Consumer Electronics * Building Automation Systems * Distributed Power Architectures * Battery-Powered Devices * IoT Products * Power Management Modules ### Compliance * RoHS Compliant * Lead-Free Compatible * Industrial-Grade Power Management Solution ## Manufacturer STMicroelectronics ## Product Family L6982 Synchronous Step-Down Switching Regulator Series #L6982N33DR #STMicroelectronics #BuckConverter #DCtoDCConverter #SwitchingRegulator #PowerManagement #PowerSupplyDesign #EmbeddedSystems #IndustrialElectronics #VoltageRegulator #PowerElectronics #IoTDevices #ElectronicsEngineering #PCBDesign #SMPS

LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) PWM Dimming 750mA 8-DFN-EP (3x3) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LEDdriver

LED Driver IC 1 Output DC DC Controller Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 16-MSOP-EP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LEDdriver

LED Driver IC 1 Output DC DC Regulator Step-Down (Buck) Dimming 1A TSOT-25 #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LED-Driver #AL8860

Buck, Buck-Boost Regulator Positive Output Step-Down, Step-Up/Step-Down DC-DC Controller IC 20-HTSSOP #commonpartslibrary #integratedcircuit #powermanagement #dcdc

LED Driver IC 12 Output DC DC Regulator Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 24-HTSSOP #commonpartslibrary #integratedcircuit #leddriver

LED Driver IC 1 Output DC DC Controller Step-Down (Buck) Analog, PWM Dimming 8-SOIC #commonpartslibrary #integratedcircuit #powermanagement #leddriver

Battery Power Management IC Lithium Ion/Polymer 24-QFN (4x4) nPM1100 is an integrated Power Management IC (PMIC) with a linear-mode lithium-ion/lithium-polymer battery charger in a compact 2.1x2.1 mm WLCSP package. It has a highly efficient, dual-mode configurable output DC/DC buck regulator. nPM1100 is an extremely compact PMIC device, created for space constrained applications with a small lithium-ion or lithium-polymer battery. It is compatible with all nRF52 and nRF53 Series SoCs and supports charging batteries at up to 500 mA through USB, and also delivers up to 150 mA of current to power external components with regulated voltage. A minimum of five passive components are required for operation and the device functions without a control interface. It is the perfect companion for nRF52 and nRF53 multiprotocol SoCs in battery powered designs. Low quiescent current (IQ) extends battery life during shipping and storage with Ship mode, or in operation using auto-controlled hysteretic buck mode for high efficiency down to 1 µA loads. Charge and error indication LED drivers are built in. Charge profile limits are configurable and VBUS current limits can be fixed or auto-controlled with on-chip USB port detection. • 400 mA linear battery charger • Linear charger for lithium-ion/lithium-polymer batteries • Adjustable charge current from 20 mA to 400 mA • Selectable termination voltage of 4.1 V or 4.2 V • Automatic trickle, constant current, and constant voltage charging • Battery thermal protection • Discharge current limitation • JEITA compliant • Li-ion/Li-polymer USB battery charger with a high efficiency buck regulator • 800 nA - Typical quiescent current • 460 nA - Shipping mode quiescent current • Thermal protection • Input regulator • USB compatible current limit of 100 mA and 500 mA • 4.1 V to 6.7 V input voltage range for normal operation • 20 V overvoltage protection • Reverse current protection • 3.0 V to 5.5 V system voltage output • USB port detection supporting the following types: • SDP • CDP/DCP • 1.8 V to 3.0 V, 150 mA step-down buck regulator • Step-down buck regulator with up to 92% efficiency • Automatic transition between hysteretic and pulse width modulation (PWM) modes • Forced PWM mode for clean power operation • Pin-selectable output voltage (1.8 V, 2.1 V, 2.7 V, 3.0 V) • Soft start-up • LED drivers for charger state indication • 5 mA low side LED driver for charging indication • 5 mA low side LED driver for error indication • 2.3 V to 4.35 V battery operating input range • 2.1x2.1 mm WLCSP package • Suitable for two layer PCB design #CommonPartsLibrary #IntegratedCircuit #NordicSemiconductor #nPM1100 #PMIC #BatteryCharger #PowerManagement #LiIon #LiPolymer #BuckConverter #Wearables #IoT #WirelessSensor #LowPowerDesign #USBCharging #EmbeddedSystems #nRF52 #nRF53 #PortableElectronics

LED Driver IC 1 Output DC DC Controller Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 16-TSSOP-EP #commonpartslibrary #integratedcircuit #powermanagement #leddriver

Buck Regulator Positive Output Step-Down I2C, PMBus DC-DC Controller IC 52-QFN (5x8) #commonpartslibrary #integratedcircuit #voltageregulator #pmic

1.8μA Quiescent Current, 15V, 300mA Synchronous Step-Down DC/DC Converter 10-MSOP #CommonPartsLibrary #IntegratedCircuits #BatteryChargers #LTC3103

Buck Regulator Positive Output Step-Down DC-DC Controller IC 24-WQFN (4x4) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #switching-regulator #LM25117

LED Driver IC 1 Output DC DC Controller Step-Down (Buck), Step-Up (Boost) PWM Dimming 8-SOIC #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LEDdriver

LED Driver IC 1 Output DC DC Controller Flyback, SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming - 16-MSOP-EP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LEDdriver

LED Driver IC 1 Output DC DC Controller SEPIC, Step-Down (Buck), Step-Up (Boost) Analog, PWM Dimming 20-HTSSOP #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LED-Driver #LM3423

Buck Regulator Positive Output Step-Down DC-DC Controller IC 20-QFN (3.5x4.5) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #Switching-controller #L3751

LED Driver IC 1 Output DC DC Controller Step-Down (Buck) PWM Dimming 28-QFN (4x5) #commonpartslibrary #integratedcircuit #leddriver

Buck Regulator Positive Output Step-Down DC-DC Controller IC 32-TQFP (7x7) #CommonPartsLibrary #IntegratedCircuit #PowerManagement #DCDC #Switching-controller #MAX17559