OR Controller N+1 ORing Controller N-Channel 1:1 TSOT-23-8 The LM74700QDDFRQ1 is an automotive-qualified ideal diode controller designed to provide reverse polarity protection, reverse current blocking, and input power path management in low-voltage DC power systems. The device controls an external N-channel MOSFET to emulate an ideal diode with very low forward voltage drop and reduced power dissipation compared to conventional Schottky diodes. It is optimized for automotive and industrial applications requiring robust protection against negative supply voltages, load dump conditions, and reverse battery events. The controller supports wide input voltage operation and integrates fast response circuitry for fault handling and transient protection. The device is suitable for power OR-ing, hot-swap, redundant power supply systems, and battery-connected applications where efficiency, reliability, and thermal performance are critical. Engineering Specification Device Type Automotive ideal diode controller with reverse battery and reverse current protection Qualification Standard AEC-Q100 qualified for automotive applications Control Topology External N-channel MOSFET controller for ideal diode operation Input Voltage Range Supports wide automotive and industrial supply voltage ranges Reverse Polarity Protection Provides protection against negative input voltage conditions and reverse battery connection Reverse Current Blocking Actively prevents reverse current flow during output-to-input fault conditions Forward Voltage Drop Low conduction losses through external MOSFET control for high-efficiency power delivery Transient Protection Capable of handling automotive transient events including load dump conditions Gate Drive Control Integrated gate driver optimized for fast MOSFET switching and protection response Power Path Management Supports power OR-ing and redundant supply architectures Fault Response Fast turn-off during reverse current and fault events Current Consumption Low operating quiescent current suitable for always-on systems Thermal Performance Designed for efficient thermal operation with external MOSFET-based power dissipation Operating Temperature Range Automotive-grade extended temperature operation Package Type Small-outline automotive package suitable for compact PCB layouts #commonpartsLibrary #integratedcircuit #powermanagement #orcontroller

1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC with 4.2 VBAT The BQ24075TRGTR (from Texas Instruments) is a highly integrated single-cell Li-Ion / Li-Polymer linear battery charger IC with power-path management. It is designed for portable and space-constrained applications, allowing a device to be powered from a USB port or AC adapter while simultaneously charging the battery. The device integrates charging control, power-path management, and safety features into a compact package. A key feature is its Dynamic Power Path Management (DPPM), which ensures the system is powered even when the battery is low or absent, while intelligently managing charging current. Key Features Battery Charging Supports single-cell Li-Ion / Li-Polymer batteries Up to 1.5 A programmable charge current Three-phase charging: Pre-charge (conditioning) Constant current Constant voltage Fixed 4.2 V charge voltage Power Path Management Dynamic Power Path Management (DPPM): Powers system and charges battery simultaneously Prioritizes system load over charging Allows system operation even with: Deeply discharged battery No battery connected Input & Power Features Operates from: USB input (100 mA / 500 mA selectable) AC adapter Programmable input current limit up to 1.5 A Input voltage range: ~4.35 V to 6.4 V (28 V max rating) Input dynamic power management (VIN-DPM) prevents source overload Protection & Safety Thermal regulation and shutdown Over-voltage protection (OVP) Short-circuit and reverse current protection Battery temperature monitoring (NTC thermistor input) Battery disconnect (SYSOFF) feature Control & Status Standalone operation (no MCU required, resistor-programmable) Charge status outputs: Charging Charge complete Power good Physical Characteristics Package: 16-pin VQFN (3 mm × 3 mm) Operating temperature: –40°C to +85°C #commonpartslibrary #integratedcircuit #powermanagement #batterycharger

Bipolar (BJT) Transistor NPN 40V 200mA 300MHz 350mW Surface Mount SOT-23 The MMBT3904-TP is an NPN general-purpose bipolar junction transistor (BJT) in a SOT-23 surface-mount package. It is a compact SMD version of the classic 2N3904, designed for switching and low-power signal amplification in a wide range of electronic circuits. It is commonly used in embedded systems, consumer electronics, and PCB designs where small size and reliable switching performance are required. Key Features NPN Bipolar Junction Transistor (BJT) Suitable for switching and amplification applications SOT-23 Surface-Mount Package Compact footprint for high-density PCB designs Collector-Emitter Voltage (Vceo) Typically up to 40V Collector Current Up to 200 mA continuous Low Power Operation Designed for small signal and low-power switching tasks High Gain (hFE) DC current gain typically 100–300 Fast Switching Capability Suitable for digital and pulse applications Wide Operating Temperature Range Typically -55°C to +150°C High Reliability Stable performance for general-purpose use RoHS Compliant Environmentally compliant manufacturing Typical Applications Signal switching in digital circuits LED driving circuits Small relay or load switching Sensor interface circuits General-purpose amplification stages 2N3904 SOT-23 #CommonPartsLibrary #Transistor #BJT #NPN #MMBT3904

Linear Voltage Regulator IC Positive Fixed 1 Output 500mA SOT-23-5 The TLV75533PDBVR is a low-dropout (LDO) linear voltage regulator designed to provide a stable 3.3 V output from a higher input voltage source. It features ultra-low quiescent current and high power-supply rejection ratio (PSRR), making it ideal for battery-powered and noise-sensitive applications such as IoT devices, portable electronics, and RF circuits. The device is optimized for fast transient response and stable operation with small ceramic output capacitors. Key Features Fixed output voltage: 3.3 V Low dropout voltage (typ. ~200 mV at full load) Ultra-low quiescent current (typ. 25 µA) High PSRR for noise-sensitive applications Stable with small ceramic capacitors (≥1 µF) Thermal shutdown and overcurrent protection Available in compact SOT-23-5 package (DBV) Absolute Maximum Ratings Input voltage: –0.3 V to 6.5 V Output voltage: –0.3 V to (VIN + 0.3 V) Operating junction temperature: –40°C to +125°C Storage temperature range: –65°C to +150°C Recommended Operating Conditions Input voltage range: 1.45 V to 5.5 V Output voltage: 3.3 V (fixed) Output current: up to 500 mA Operating temperature range: –40°C to +125°C Electrical Characteristics (Typical unless otherwise noted) Output voltage accuracy: ±1% Dropout voltage: ~200 mV @ 500 mA Quiescent current: ~25 µA PSRR: up to 70 dB (at 1 kHz) Line regulation: <0.05%/V Load regulation: <0.5% Pin Configuration (SOT-23-5) Pin 1: IN – Input voltage Pin 2: GND – Ground Pin 3: EN – Enable (active high) Pin 4: NC – No connect Pin 5: OUT – Regulated output Typical Application Power management for microcontrollers and sensors Battery-powered portable devices RF and analog circuits requiring low noise supply IoT and wearable electronics Protection Features Thermal shutdown protection Overcurrent protection Undervoltage lockout (UVLO) #commonpartsLibrary #integratedcircuit #powermanagement #voltageregulator

Industrial Grade. 5.5V 2A Low RDSON Load Switch with Programmable Current Limit #ultralibrarian

Electronic Fuse Regulator 2.5A 6-WSON (2x2) The TPS25200 is a 5-V eFuse with precision current limit and overvoltage clamp. The device provides robust protection for load and source during overvoltage and overcurrent events.

Low IQ Dual Channel 3A/2A Load Switch #ultralibrarian

3.8-V to 36-V, 3-A synchronous step-down voltage converter Buck Switching Regulator IC Positive Adjustable 1V 1 Output 3A 12-PowerVFQFN The LMR33630-Q1 automotive-qualified regulator is an easy-to-use, synchronous, step-down DC/DC converter that delivers best-in-class efficiency for rugged applications. The LMR33630-Q1 drives up to 3 A of load current from an input of up to 36 V. The LMR33630-Q1 provides high light load efficiency and output accuracy in a very small solution size. Features such as a power-good flag and precision enable provide both flexible and easy-touse solutions for a wide range of applications. The LMR33630-Q1 automatically folds back frequency at light load to improve efficiency. Integration eliminates most external components and provides a pinout designed for simple PCB layout. Protection features include thermal shutdown, input undervoltage lockout, cycle-by-cycle current limit, and hiccup short-circuit protection. The LMR33630-Q1 is available in a 12-pin 3 mm × 2 mm next generation VQFN package with wettable flanks • AEC-Q100 qualified for automotive applications: – Temperature grade 1: –40°C to +125°C, TA • Functional Safety-Capable – Documentation available to aid functional safety system design • Configured for rugged automotive applications – Input voltage range: 3.8 V to 36 V – Output voltage range: 1 V to 24 V – Output current: 3 A – 75-mΩ/50-mΩ RDS-ON power MOSFETs – Peak-current-mode control – Short minimum on-time of 68 ns – Frequency: 400 kHz, 1.4 MHz, 2.1 MHz – Integrated compensation network • Low EMI and switching noise – HotRod™ package – Parallel input current paths • High power conversion at all loads – Peak efficiency > 95% – Low shutdown quiescent current of 5 µA – Low operating quiescent current of 25 µA #CommonPartsLibrary #IntegratedCircuit #PowerManagement #LMR33630

24-Bit Analog-to-Digital Converter (ADC) for Weight Scales adc load cell 24-bits analog weight SOP*3.9x9.9mm*P1.27mm*

External Input Sensor Amplifier LOAD CELL AMP HX711 #commonpartslibrary #sensor #transducer #amplifier #loadcellamp

MOSFET Output Solid-State Relay (PhotoMOS® Relay) – Single-pole normally open (1 Form A) solid-state relay with a MOSFET output for low-level signal switching and isolation. Provides 3750 Vrms input-to-output isolation, supports 60 V maximum load voltage, 0.4 A continuous load current, and 2.5 Ω maximum on-state resistance. Features an LED input with 3 mA maximum operate current, 1 ms maximum turn-on/turn-off time, 100 pF typical output capacitance, and is housed in a 4-pin SOP surface-mount package. Operates over a −40°C to +85°C temperature range. #Aratas #G3VM201AY1 #SolidStateRelay #PhotoMOS #MOSFETRelay #SSR #OpticallyIsolatedRelay #SignalSwitch #1FormA #SOP4 #SurfaceMount #EmbeddedSystems

High-Efficiency 3A 16V 800kHz Synchronous Step-Down Converter with External Soft Start and Light Load Mode #ultralibrarian

Polymeric PTC Resettable Fuse 6V 500 mA Ih Surface Mount 0603 (1608 Metric), Concave polyfuse 500mA 0603 The 0603L050YR is a surface-mount resettable fuse based on polymeric positive temperature coefficient technology, designed to provide overcurrent protection in compact electronic circuits. Under normal operating conditions, the device exhibits low resistance and allows current to pass with minimal power loss. When exposed to an overcurrent condition, the device transitions to a high-resistance state, effectively limiting the current and protecting downstream components. Once the fault condition is removed and power is cycled or the device cools, the fuse automatically resets to its original low-resistance state. This component is optimized for space-constrained applications requiring reliable, resettable protection, such as portable electronics, battery-powered systems, and low-voltage signal lines. Its small form factor enables integration into dense PCB layouts while maintaining compliance with industry safety standards for overcurrent protection. Package and Mounting: Surface-mount device in standard 0603 footprint, compatible with automated assembly processes including reflow soldering. Electrical Characteristics: The device is designed to maintain normal operation at a defined hold current level and transition to a protective state when the current exceeds its trip threshold. It operates within low-voltage circuits and provides fast response to fault conditions while minimizing nuisance tripping under typical load variations. Functional Behavior: The fuse operates by increasing resistance sharply in response to thermal energy generated by excess current. This behavior reduces current flow and limits fault energy. After removal of the overcurrent condition, the device gradually returns to its conductive state, enabling repeated use without replacement. Applications: Suitable for use in power lines, battery packs, USB interfaces, consumer electronics, and other low-voltage systems where resettable overcurrent protection is required. Compliance and Reliability: Designed to meet relevant safety and environmental standards for electronic components, ensuring stable performance across specified operating conditions and long-term reliability in field applications. #commonpartslibrary #fuse #Circuit-Protection #PTC #ptc #polymeric

21A 16VOUT High-Efficiency Fully Integrated Synchronous High-Power Boost Converter Support 30W Power Load #ultralibrarian

1V to 5.5V, 2A, 80mΩ Ultra-Low Leakage Load Switch, SOT23-6 high-side power distribution switch SOT?23*

Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 3.5A 8-PowerSOIC (0.154", 3.90mm Width) The LM5013DDAR is a 100-V input, 3.5-A buck switching regulator IC that efficiently steps down high DC voltages (such as 24 V, 48 V, or battery rails) to lower regulated outputs. It is optimized for rugged environments where wide input variations and high reliability are required. It features ultra-low quiescent current operation, making it suitable for systems that require high efficiency even at light load or standby conditions. Key Features Wide input voltage range: 6 V to 100 V Up to 3.5 A output current capability Integrated 100-V high-side MOSFET Non-synchronous buck topology Ultra-low quiescent current (IQ) for high efficiency in standby Constant-on-time (COT) control for fast transient response No external compensation components required Adjustable output voltage (down to ~1.2 V reference) 50 ns minimum on/off time for high step-down ratios Built-in protection features: Overcurrent protection Thermal shutdown Input undervoltage lockout (UVLO) Open-drain power-good (PGOOD) signal for system monitoring Meets low EMI requirements (CISPR 25 Class 5 capable) Package 8-pin SO PowerPAD (DDA) surface-mount package Designed for good thermal performance in high-voltage applications Typical Applications Industrial power supplies (24 V / 48 V systems) Automotive power systems Telecom and networking equipment High cell-count battery systems Motor control and inverter subsystems #LM5013 #BuckConverter #DCDCConverter #TexasInstruments #PowerManagementIC #HighVoltageRegulator #3ARegulator #IndustrialPower #AutomotiveElectronics #SwitchingRegulator #COTController

Automotive, 60-V, 6-A, 30-mΩ, one-channel smart high-side switch with adjustable current limit TPS1HTC30-Q1 is a single-channel, smart high-side switch, with integrated NMOS power FET and charge pump, designed to meet the requirements of 24-V automotive battery systems. The low RON(30 mΩ) minimizes device power dissipation driving a wide range of output load current up to 6-A DC, and the 60- V DC operating range improves system robustness. The device integrates protection features such as thermal shutdown, output clamp, and current limit. These features improve system robustness during fault events such as short circuit. TPS1HTC30-Q1 implements an adjustable current limiting circuit that improves the reliability of the system by reducing inrush current when driving large capacitive loads and minimizing overload current. The device also provides an accurate load current sense that allows for improved load diagnostics such as overload and open-load detection enabling better predictive maintenance. TPS1HTC30-Q1 is available in a small 14-pin, 4.40- mm × 5.0-mm HTSSOP leaded package with 0.65- mm pin pitch minimizing the PCB footprint. • Single-channel smart high-side power switch for 24-V automotive systems with full diagnostics • Wide operating voltage range: 6 V to 60 V – OVP protection: 66 V • Low RON: 30-mΩ typical, 55-mΩ maximum • Low standby current: < 0.5 µA • Low quiescent current (Iq): < 2 mA • Improve system level reliability through adjustable current limiting – Current limit: 2 A –16 A • Accurate current sensing: ±4% at 1 A • Protection – Overload and short-circuit protection – Integrated inductive discharge clamp – Undervoltage lockout (UVLO) protection – Loss of GND, loss of supply protection – Reverse battery protection with external components • Diagnostics – On and off state output open-load and short-tobattery detection – Overload and short to ground detection – Absolute and relative thermal shutdown detection • Functional Safety-Capable – Documentation available to aid functional safety system design • Operating junction temperature: –40 to 125°C • Input control: 1.8-V, 3.3-V and 5-V logic compatible • Integrated fault sense voltage scaling for ADC protection • Qualifications – AEC-Q100 qualified for automotive applications • Temperature grade 1: –40°C to +125°C, TA • 14-pin thermally-enhanced TSSOP package TPS1HTC30AQPWPRQ1 #CommonPartsLibrary #IntegratedCircuit

The FS8205A is a dual N-channel enhancement-mode power MOSFET designed primarily for lithium-ion and lithium-polymer battery protection applications. Manufactured by several semiconductor vendors including Fortune Semiconductor, this device integrates two low on-resistance MOSFETs within a compact surface-mount package, enabling efficient bidirectional current control for battery charging and discharging systems. The device is commonly paired with single-cell battery protection controller ICs such as the DW01A to provide overcharge, overdischarge, overcurrent, and short-circuit protection in portable electronic products. Its low drain-to-source resistance minimizes conduction losses and improves overall battery efficiency while maintaining compact PCB layout requirements. The FS8205A is widely used in battery management systems, portable consumer electronics, rechargeable battery packs, USB-powered devices, IoT hardware, and embedded power management circuits requiring reliable load switching and battery protection functionality. Engineering Specification Device Type Dual N-channel power MOSFET Transistor Technology Enhancement-mode MOSFET architecture Channel Configuration Dual independent N-channel MOSFETs Switching Characteristics Low on-resistance for efficient power switching Gate Characteristics Logic-level gate drive compatibility Current Handling Optimized for battery charge and discharge current control Power Efficiency Low conduction loss for improved battery runtime Protection System Compatibility Designed for lithium battery protection controller integration Thermal Characteristics Compact thermal-efficient surface-mount structure Package Type SOP-8 surface-mount package Mounting Style Surface mount technology Reliability Features Stable switching performance and robust load handling capability Applications Lithium-ion battery protection Battery management systems Portable electronics Rechargeable battery packs USB-powered devices Power path switching Embedded systems Consumer electronics IoT hardware Load switching circuits Manufacturer Commonly manufactured by Fortune Semiconductor and compatible vendors #commonpartslibrary #mosfet #dualmosfet #nchannelmosfet #batteryprotection #batterymanagement #powermanagement #powerelectronics #embeddedhardware #consumerelectronics #surfaceountcomponents #electronicsdesign #lithiumbattery #loadswitch #portableelectronics

0.5 mOhms ±1% 5W Chip Resistor Nonstandard Automotive AEC-Q200, Current Sense Metal Element # Engineering Specification ## Product Name CSS4J-4026R-L500F ## General Description CSS4J-4026R-L500F is a precision four-terminal Kelvin current sense shunt resistor designed for accurate current measurement in high-performance electronic and power management systems. The device is intended for use in applications requiring low resistance sensing, high measurement accuracy, and stable thermal performance under varying electrical loads. The component utilizes a metal element resistive structure optimized for minimal resistance drift, reduced temperature effects, and consistent long-term stability. Its four-terminal Kelvin configuration separates current flow and voltage sensing paths, enabling improved measurement accuracy by eliminating errors caused by PCB trace and connection resistance. The device is widely used in power conversion systems, battery monitoring systems, motor control circuits, and industrial power electronics where precise current feedback is essential for control, protection, and monitoring functions. Its surface-mount construction supports compact PCB layouts and automated assembly processes while maintaining robust mechanical and electrical reliability. The design emphasizes efficient heat dissipation, stable electrical characteristics, and compatibility with demanding industrial and automotive environments. It is suitable for integration into systems requiring continuous current monitoring and high measurement fidelity. ## Functional Requirements ### Current Measurement The device shall provide accurate current sensing through a low-resistance conductive path designed for minimal measurement error. ### Kelvin Sensing Operation The device shall support four-terminal Kelvin sensing to improve measurement accuracy by separating current and voltage sensing paths. ### Signal Stability The device shall maintain stable sensing characteristics under varying load and thermal conditions. ### System Integration The component shall support integration into power electronics and embedded control systems requiring precise current feedback. ## Electrical Requirements ### Low Resistance Operation The device shall exhibit very low resistance to minimize power loss and maintain measurement accuracy. ### Thermal Stability The resistor shall maintain consistent electrical behavior under elevated operating temperatures and thermal cycling conditions. ### Power Handling The device shall support operation in high-current environments typical of power conversion and motor control systems. ### Measurement Accuracy The design shall support precise voltage drop measurement proportional to current flow for control and monitoring applications. ## Mechanical Requirements ### Surface Mount Construction The device shall be provided in a surface mount package suitable for automated PCB assembly. ### Structural Integrity The component shall maintain mechanical stability during assembly, operation, and thermal cycling. ### PCB Integration The device shall support direct integration into multilayer printed circuit board designs with optimized current path layout. ## Environmental Requirements ### Operating Conditions The device shall operate reliably under industrial and automotive environmental conditions. ### Thermal Performance The component shall maintain performance stability under continuous electrical loading and heat generation. ### Storage and Handling The device shall maintain physical and electrical integrity during storage, transport, and handling procedures. ## Quality Requirements ### Reliability The device shall provide long-term stability in resistance value and sensing accuracy under continuous operation. ### Verification Electrical, thermal, and mechanical characteristics shall be validated through appropriate testing and qualification procedures. ### Compliance The product shall conform to applicable standards for current sensing resistors used in industrial and automotive electronics. ## Documentation Requirements Technical documentation shall include application guidelines, layout recommendations for Kelvin sensing, thermal considerations, electrical characteristics, and integration practices for power electronics systems. ## Classification Tags #CSS4J4026RL500F #CurrentSenseResistor #ShuntResistor #KelvinSensing #FourTerminalResistor #PowerElectronics #BatteryManagement #MotorControl #PowerSupplyDesign #AnalogSensing #ElectricalEngineering #PCBDesign #EmbeddedSystems #IndustrialElectronics #AutomotiveElectronics #CommonPartsLibrary #ComponentLibrary #EngineeringSpecification #TechnicalDocumentation #HighCurrentSensing #PrecisionMeasurement #CircuitDesign

High Efficiency 2A 6V 1.5MHz 17uA Iq COT Synchronous Step Down Converter with better Vfb accuracy and better load regulation in QFN package #ultralibrarian