Voltage Regulators
A voltage regulator is an electronic device that maintains a constant output voltage level, regardless of changes in the input voltage or load conditions. These devices are commonly used to provide a stable power supply to electronic circuits, as well as to protect them from voltage spikes and surges. There are several types of voltage regulators, including linear, switching, and pulse width modulation (PWM) regulators, each with its own set of characteristics and applications. Linear regulators, for example, are simple and efficient, but have a relatively low switching speed and can only provide a limited output current. Switching regulators, on the other hand, have higher switching speeds and can provide a higher output current, but are more complex and require additional components. In addition to their use in power supplies and voltage protection, voltage regulators are also used in a wide range of other applications, including motor control, battery charging, and instrumentation. Flux.ai has the world's largest community-driven public library of voltage regulators, with footprints, symbols, datasheets, and simulation models for a wide range of devices. Whether you're a designer, engineer, or hobbyist, you can find the resources you need to get your project up and running quickly and efficiently.
INA229AIDGST
Current Monitor Regulator High-Side 10mA 10-VSSOP The INA229AIDGST is a high-precision digital power monitor designed for accurate measurement of shunt voltage, bus voltage, current, power, energy, and charge in low- and high-side sensing applications. The device integrates a low-offset delta-sigma analog-to-digital converter with programmable calibration and alert functionality, enabling precise system-level power monitoring in industrial, automotive, telecommunications, server, and battery-powered applications. The device communicates through a high-speed I²C- and SMBus-compatible serial interface and supports wide common-mode voltage operation for flexible integration into multi-rail power systems. Internal computation engines provide direct digital reporting of current, power, accumulated energy, and charge values, minimizing host processor overhead. The INA229AIDGST includes programmable conversion timing, averaging modes, alert outputs, and diagnostic monitoring features to support advanced power management and protection architectures. Its low input offset and high measurement accuracy make it suitable for precision instrumentation, energy metering, and power optimization systems. Key Features High-accuracy current, voltage, power, energy, and charge monitoring Supports both high-side and low-side current sensing architectures Wide common-mode input voltage range Integrated precision delta-sigma ADC architecture Direct digital calculation of power, energy, and accumulated charge Programmable calibration and averaging configuration I²C- and SMBus-compatible communication interface Configurable alert and fault monitoring output Low offset voltage and low gain error for precision measurements Programmable conversion time and operating modes Integrated temperature measurement support Suitable for industrial, enterprise, automotive, and battery-powered systems Electrical Characteristics Precision shunt voltage measurement capability High-resolution bus voltage monitoring Integrated current and power computation engine Low quiescent current operation Wide supply voltage operating range High common-mode transient immunity Low measurement drift over temperature Interface and Control I²C-compatible serial interface SMBus compatible operation Programmable device addressing Configurable alert pin functionality Internal register-based configuration and diagnostics Package Information Package Type: VSSOP Package Variant: DSG Surface-mount package configuration Thermally optimized compact footprint suitable for dense PCB layouts Typical Applications Power supply monitoring Battery management systems Industrial automation equipment Telecom infrastructure Server and data center power management Embedded system power analytics Energy monitoring and metering DC motor and actuator monitoring #commonpartslibrary #integratedcircuit #powermanagement #powersupplycontroller
1 Uses0 StarsLMR33630-Q1
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
327 Uses0 StarsMAX77960EFV06+
- Converter, Battery Powered Devices Voltage Regulator IC 1 Output 30-FC2QFN (4x4) The MAX77960EFV06+ is a fully integrated switching charger and power management IC that supports both step-up (boost) and step-down (buck) operation, making it suitable for USB-C PD applications where input voltage can be higher or lower than the battery voltage. It includes an internal Smart Power Selector™, which intelligently manages power flow between the input source, battery, and system load, enabling smooth system startup even with deeply discharged batteries. This device is widely used in portable electronics, battery-powered systems, drones, cameras, and USB-C PD devices requiring high power efficiency and compact design. Key Features Power & Electrical Specs Input voltage range: 3.5 V to 25.4 V High-efficiency buck-boost operation (up to ~97% peak efficiency) Programmable charging current: 100 mA to 3.15 A (MAX77960 version) Supports 2-cell and 3-cell Li-ion battery charging #CommonPartsLibrary #IntegratedCircuit #PowerManagement
0 Uses0 StarsLM51772RHAR
Buck-Boost Regulator Positive Output Step-Up/Step-Down I2C DC-DC Controller IC 40-VQFN (6x6) The LM51772RHAR is a high-performance multi-phase bidirectional buck-boost controller designed for power conversion systems requiring efficient energy transfer between two voltage domains. The device supports seamless operation in both step-up and step-down modes and is optimized for battery-powered, automotive, industrial, and energy storage applications. The controller enables bidirectional current flow, making it suitable for battery charging, backup power systems, supercapacitor management, and high-power USB Type-C power delivery applications. The device integrates advanced control architecture for high efficiency across a wide operating range while supporting programmable current regulation, voltage regulation, and protection features. Multi-phase capability allows reduced input and output ripple currents, improved thermal distribution, and higher overall power capability. The controller supports external MOSFETs for scalable power design flexibility and includes comprehensive monitoring and fault management functions. The LM51772RHAR is designed for operation in demanding environments with robust protection features including overvoltage protection, undervoltage lockout, cycle-by-cycle current limiting, thermal shutdown, and fault reporting. Its flexible configuration and high integration level reduce external component count and simplify implementation in high-density power systems. Key Features Bidirectional synchronous buck-boost controller architecture Supports power transfer in both forward and reverse directions Multi-phase operation for increased power capability and reduced ripple Wide input and output voltage operating range High-efficiency synchronous control using external MOSFETs Programmable current and voltage regulation Peak and average current control capability Seamless transition between buck, boost, and buck-boost operating modes Integrated current sensing support Programmable switching frequency synchronization Phase interleaving support for thermal and ripple optimization External clock synchronization capability Soft-start and controlled startup sequencing Comprehensive fault detection and protection functions Overcurrent protection and short-circuit protection Overvoltage and undervoltage protection Thermal shutdown protection Fault status reporting and system monitoring support Designed for automotive and industrial power applications Compact thermally enhanced package Typical Applications Bidirectional battery charging systems Energy storage systems Automotive dual-battery architectures USB Type-C Power Delivery systems Backup power and UPS systems Supercapacitor charging and balancing Industrial DC power conversion Renewable energy power management High-power portable electronics Telecom and server power systems Electrical Characteristics Wide operating supply voltage range High switching frequency operation capability High-current multi-phase scalability Precision current regulation accuracy Low standby power consumption High-efficiency synchronous rectification support Programmable dead-time and switching parameters Stable operation across wide temperature range Package Information Package Type: VQFN Package Suffix: RHA Thermally enhanced exposed pad package Surface-mount implementation Suitable for automated assembly processes #commonpartslibrary #integratedcircuit #powermanagement #buckboost #dcdcswitchingcontrollers
22 Uses0 StarsTPS62840DLCR
Buck Switching Regulator IC Positive Adjustable 1.8V 1 Output 750mA 8-VFDFN The TPS62840 is a high-efficiency step-down converter with ultra-low operating quiescent current of typically 60 nA. The device contains special circuitry to achieve just 120 nA IQ in 100% mode to further extend battery life near the end of discharge. The device uses DCS-Control to cleanly power radios and operates with a typical switching frequency of 1.8 MHz. In Power-Save Mode, the device extends the light load efficiency down to a load current range of 1 μA and below. 16 predefined output voltages can be selected by connecting a resistor to pin VSET, making the device flexible for various applications with a minimum amount of external components. The STOP pin of the device immediately eliminates any switching noise in order to take a noise-free measurement in test and measurement systems. The TPS62840 provides an output current of up to 750 mA. With an input voltage of 1.8 V to 6.5 V, the device supports multiple power sources such as 2S to 4S Alkaline, 1S to 2S Li-MnO2 , or 1S Li-Ion/LiSOCl2 Features 1• 60-nA operating quiescent current • 100% duty-cycle mode with 120-nA IQ • Input voltage range VIN from 1.8 V to 6.5 V • Output current up to 750 mA • RF friendly DCS-Control™ • 80% efficiency at 1 µA IOUT (3.6 VIN to 1.8 VOUT) • 16 selectable output voltages via VSET pin • Auto transition PFM/PWM or forced-PWM mode • Selectable forced PWM and STOP modes • Output discharge function • 25-nA shutdown current #commonpartslibrary #integratedcircuit #powermanagement #voltageregulator
288 Uses0 StarsAP2114H-3.3TRG1
Linear Voltage Regulator IC Positive Fixed 1 Output 1A SOT-223-3 General Description The AP2114H-3.3TRG1 is a low dropout linear voltage regulator designed to provide a stable fixed output voltage for low-noise and power-sensitive electronic applications. The device is optimized for high current capability, low quiescent current operation, and reliable thermal performance. It is suitable for portable electronics, embedded systems, communication equipment, consumer devices, and industrial control applications where stable power regulation is required. The regulator incorporates internal protection functions including over-current protection and thermal shutdown to improve operational reliability and system safety. The component is supplied in a surface-mount SOT-223 package suitable for automated PCB assembly processes. Device Type Low Dropout Linear Voltage Regulator with Enable Function Output Configuration Positive Fixed Output Nominal Output Voltage 3.3 V Maximum Output Current 1 A minimum continuous load current capability Input Voltage Range Operates from low-voltage DC input supplies up to 6 V maximum Dropout Voltage Low dropout operation suitable for battery-powered and low-headroom applications Output Accuracy High precision regulated output voltage with tight tolerance characteristics Quiescent Current Low standby current for power-efficient system operation Power Supply Rejection High ripple rejection performance for low-noise output regulation Protection Features Integrated over-current protection Thermal shutdown protection Short-circuit protection Operating Temperature Range Suitable for industrial temperature operating conditions from negative forty degrees Celsius to positive eighty-five degrees Celsius Package Information Surface-mount SOT-223 package Mounting Method Surface Mount Technology Applications LCD monitors LCD televisions Set-top boxes Portable electronics Embedded controllers Industrial electronic systems Low-noise power supply applications #CommonPartsLibrary #IntegratedCircuit #PowerManagement
18 Uses0 StarsTPS259814ARPWR
Electronic Fuse Regulator High-Side 10A 10-VQFN-HR (2x2) The TPS25981xx family of eFuses is a highly integrated circuit protection and power management solution in a small package. The devices provide multiple protection modes using very few external components and are a robust defense against overloads, short circuits, voltage surges and excessive inrush current. Output slew rate and inrush current can be adjusted using a single external capacitor. Loads are protected from input overvoltage conditions by cutting off the output if input exceeds an adjustable overvoltage threshold. The devices respond to output overload by actively limiting the current (during startup) or breaking the circuit (during steady-state). The overcurrent protection threshold as well as the transient overcurrent blanking timer are useradjustable. The current limit control pin also functions as an analog load current monitor. The devices are available in a 2-mm × 2-mm, 10- pin HotRod™ QFN package for improved thermal performance and reduced system footprint. The devices are characterized for operation over a junction temperature range of –40°C to +125°C. • Wide operating input voltage range: 2.7 V to 16 V – 20-V absolute maximum • Integrated FET with low on-resistance: RON = 6 mΩ (typ.) • Fast overvoltage protection – Adjustable overvoltage lockout (OVLO) with 1.2-μs (typ.) response time • Overcurrent protection with load current monitor output (ILM) – Circuit-breaker response – Adjustable threshold (ILIM) 1.5 A – 11 A • ±10% accuracy for ILIM > 5 A – Adjustable transient blanking timer (ITIMER) to allow peak currents up to 2 × ILIM – Output load current monitor accuracy: ±10% (IOUT ≥ 3 A) • Fast-trip response for short-circuit protection – 640-ns (typ.) response time – Adjustable (2 × ILIM) and fixed thresholds • Active high enable input with adjustable undervoltage lockout threshold (UVLO) • Active low enable input with adjustable undervoltage lockout threshold (OVLO) • Adjustable output slew rate control (dVdt) • Option to drive external FET for reverse current blocking in disabled/OFF state • Overtemperature protection • Quick Output Discharge • Digital outputs – Power Good (PG) and fault indication (FLT) • UL 2367 recognition (pending) • IEC 62368 CB certification (pending) • Small footprint: QFN 2-mm × 2-mm, 0.45-mm pitch #CommonPartsLibrary #IntegratedCircuit #PowerManagement
31 Uses0 StarsSRP1265A-330M
33µH Shielded Drum Core, Wirewound Inductor 8 A 58mOhm Max Nonstandard The SRP1265A-330M is a shielded wirewound power inductor from the Bourns SRP1265A series, designed for high-current DC-DC converters, voltage regulator modules, and power supply applications. It features a carbonyl powder core construction that provides high saturation current capability, low electromagnetic interference (EMI), and stable inductance characteristics in compact surface-mount packaging. The device is AEC-Q200 qualified, making it suitable for automotive and industrial environments. Key Features 33 µH inductance Shielded construction for reduced EMI High saturation current capability Carbonyl powder core Low DC resistance Surface-mount package Wirewound drum-core structure AEC-Q200 qualified RoHS compliant and halogen free Operating temperature up to +150 °C Suitable for high-current switching regulators and DC-DC converters Electrical Characteristics Inductance: 33 µH Tolerance: ±20% Current Rating: 8 A Saturation Current (Isat): 11 A DC Resistance (Max): 58 mΩ Self-Resonant Frequency: 5 MHz Typical Applications DC-DC converters Switching power supplies Automotive electronics EMI filtering Industrial power systems LED drivers Battery-powered equipment #CommonPartsLibrary #Inductor #SMD
13 Uses0 Stars
