Active filters amplify desired signals while rejecting unwanted frequencies, and can be tailored to meet application-specific requirements in electronics.
Amplifiers boost signal strength, match impedance levels, and are essential in many circuit systems, including audio, broadcasting, and telecommunications.
Batteries store and provide electrical energy, come in various types and sizes for multiple uses, rechargeable or single-use.
Capacitors store electrical charge with metallic plates and a dielectric; types vary and can be combined for specific circuit characteristics.
Chip carriers and sockets provide an interface between components and PCBs, enabling easy replacement or upgrading without soldering.
Circuit protection devices prevent damage from overcurrent flow, including fuses, breakers, surge protectors, and voltage regulators.
Connector accessories and support devices aid connector function and longevity, including backshells, grips, clamps, and ties; must be compatible with connector type.
Connectors join electronic circuits to transfer signals and power, come in various sizes and shapes, and include support accessories.
Converters transform DC input to another voltage level, essential in electronic systems, renewable energy, and automotive electronics.
Crystals and resonators generate and stabilize frequency signals via piezoelectricity. They are used in timing, frequency control, and filters. Crystals are quartz and resonators are ceramic with a built-in capacitor.
Semiconductor diodes control current flow in one direction (uni-directionality) via low resistance. Useful for rectification, voltage regulation, detection, and digital logic.
Discover essential electronic components for your devices, including CPU accelerators, system cache controllers, computer processors, motherboards, and graphics computing systems. Enhance device performance and connectivity with reliable components engineered for seamless integration and optimal functionality.
Fiber optics use light pulses to transmit data over long distances. They have superior bandwidth capacity, low signal attenuation, and secure physical properties. They are essential in telecommunications networks today.
Filters enhance signal processing by selectively passing desired frequencies while suppressing unwanted ones. Filters can be passive (using capacitors, resistors, and inductors) or active (using transistors or amplifiers).
Flash devices are non-volatile storage solutions that offer fast read and write speeds, making them ideal for applications requiring high-speed data transfer. These devices utilize flash memory technology, providing reliable storage for data-intensive tasks such as gaming, multimedia, and enterprise-level applications.
General purpose ICs consist of multiple individual circuits or components (e.g., logic gates, amplifiers, oscillators, etc.) that are combined onto a single integrated circuit chip for a smaller physical footprint.
I/O and storage controllers are crucial components in computer systems, managing input/output operations and storage devices. These controllers facilitate efficient data transfer between peripherals, storage drives, and the central processing unit (CPU), enhancing system performance and enabling seamless connectivity.
Inductors store energy in magnetic fields, oppose sudden changes in current flow and prevent electrical surges. Common inductor applications include power supplies, signal filters, and oscillators.
Interface ICs allow efficient device connectivity with high-speed data transfer and low power consumption.They can be ASIC or FPGA types, and may perform additional functions such as sensing, storage, and conversion.
Logic ICs can be used for storage, memory, amplification, and multiplexing. They perform fundamental logical operations on digital input signals (1, 0, H, L) to generate a corresponding digital output signal.
Memory modules are essential components in electronic devices, storing data temporarily or permanently for processing and retrieval. From volatile RAM (Random Access Memory) to non-volatile ROM (Read-Only Memory), memory technologies vary in speed, capacity, and functionality, catering to diverse application requirements.
Memory ICs store digital data and retain the information even when the power is turned off. They come in various types, like RAM (Random Access Memory) for fast data access, and ROM (Read-Only Memory) for permanent data storage.
Miscellaneous semiconductor components are a diverse category of electronic components that combines elements from a mix of component devices.
Optoelectronic devices interact with light. This family of devices can emit light, detect light, generate current, and transmit light signals for long-distance communication.
Oscillators generate repetitive waveforms, such as sine, square, or triangle waves. They are commonly used to produce stable and precise frequencies for applications like clocks, signal generation, and communication systems.
Other Function Semiconductor components are a diverse category of semiconductor components that perform a range of specialized functions.
Passive component networks operate without a power source and support data transmission within system by performing filtering, energy storage, and/or signal coupling functions.
Peripheral ICs (Integrated Circuits) are designed to control and manage the peripheral devices connected to a computer or other electronic device.
Programmable Logic ICs are user-programmable devices that allow designers to create custom logic circuits. These cost saving ICs offer real-time data processing and maximum design flexibilty.
RF (Radio Frequency) and microwave devices are used in telecommunications, wireless communications, and electronic systems. These devices include amplifiers, attenuators, filters, mixers, oscillators, and antennas, and a host of other components.
Voltage regulators are used to ensure a constant output voltage despite power fluctuations and load changes. Linear and switching regulators are common types used to maintain voltage stability.
Relays are electromagnetic switches that are used to control the flow of electrical current in an electrical circuit. Relays are a safe means of providing isolation between a controlling circuit and a controlled circuit.
Resistors control the flow of electrical current in a circuit by introducing a set resistance. These passive components reduce current flow, adjust signal levels, and bias active elements in circuits.
Transducers convert energy from one form to another and are crucial in sensing, audio and control systems. They transform physical measures like temperature, pressure, or sound into electrical signals for circuits.
Storage drives are hardware devices used to store and retrieve digital data in computers and electronic devices. These drives come in various forms, including hard disk drives (HDDs), solid-state drives (SSDs), and hybrid drives, offering different levels of capacity, speed, and durability to suit specific storage needs.
Storage media encompass physical or digital mediums used for storing and preserving digital data. From optical discs and magnetic tapes to USB flash drives and memory cards, storage media come in diverse formats and capacities, offering flexibility and reliability for data storage and archival purposes.
Storage systems comprise hardware and software components designed to manage and store digital data efficiently. These systems range from simple standalone devices to complex network-attached storage (NAS) and storage area network (SAN) solutions, providing scalable storage capacity and data protection features for businesses and enterprises.
Switches control electrical current flow by making or breaking connections. These devices vary in design and application, from basic on/off switches to complex industrial automation systems.
Telecom integrated circuits (ICs) are specialized electronics for telecommunications, tailored to high data rates, low power use, and reliable long-distance transmission. These devices include amplifiers, filters, ADCs, DACs, and more-- and they are often integrated on one chip for specific telecom tasks.
Terminal blocks, or connection terminals, are modular blocks that bring together multiple electrical wires at one connection point. They offer a reliable, organized way to terminate cables.
Thermal management devices control heat in electronic systems, preventing overheating and ensuring optimal performance and reliability. Examples include heat sinks, fans, and thermal interface materials that dissipate or transfer heat away from components.
Transformers are devices that alter electrical voltage levels between circuits through electromagnetic induction. They are vital in power distribution, converting high-voltage electricity for transmission and lower voltage for safe usage.
Transistors are 3-layer semiconductor devices that regulate the flow of electrical current. They function as amplifiers, boosting weak signals, and as switches, controlling the flow of current between terminals.
Triggering devices initiate electronic processes or events in response to specific conditions. These devices support many automated tasks such as activating switches and signals, or turning on lights when motion is detected.
Video cards, also known as graphics cards or GPU (Graphics Processing Unit), are essential components in computers, responsible for rendering graphics and images on display devices. These cards feature dedicated processors and memory, delivering smooth and immersive visual experiences for gaming, multimedia, and professional applications.
Choose from over than a million of proven quality materials. Over 300 manufacturers are presented. From renowned major international players to small independent companies with a proven track record in local markets.
Featured manufacturers
Allegro MicroSystems A4491EESTR-T is a 20-terminal switching regulator with a max output current of 1.5A and a control mode of CURRENT-MODE. Operating b/w -40 to 85°C, it is ideal for industrial applications requiring a compact chip carrier package with surface mount capability and BUCK switcher configuration.
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Arrow
$1.691
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DigiKey
$2.250
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Verical
Chip Stock
Cyclops Electronics Ltd
NAC Semi
$1.340
VNN
Nova Conductors
Ampacity Inc.
$0.550
Microchip USA
$6.240
iodParts Technologies Inc.
Aranea Global
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Continental Prestige Electronics
Argo Parts USA
Kepictronics
Eastek
$1.180
Perfect Parts
Allows for easy and efficient assembly onto circuit boards.
Sleek and compact design for space-saving in electronic devices.
Provides multiple connection points for flexibility in circuit design.
Can handle high temperatures, suitable for industrial applications.
Efficient current regulation for stable and reliable performance.
Compatible with standard 12V power sources.
Capable of delivering sufficient current for various electronic components.
Switching Regulators & Controllers A4491EESTR-T attributes and parameters. Explore more Switching Regulators & Controllers devices from Allegro MicroSystems
Other IC type:
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JESD-30 Code:
JESD-609 Code:
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No. of Terminals:
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Maximum Output Current:
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Peak Reflow Temperature (C):
Qualification:
Maximum Seated Height:
Sub-Category:
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Switcher Config:
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A4491EESTR-T Other Function Semiconductors trade compliance attributes, and parameters.
ECCN
EAR99
ECCN Governance
EAR
HTS
8542.39.00.01
SB
8542.39.00.00
PCN Packaging - Tape Change 27/Jan/2023
With more than 30 years of experience developing advanced semiconductor technology and application-specific algorithms, Allegro is a global leader in power and sensing solutions for motion control and energy-efficient systems. Through our innovations in e-Mobility, Clean Energy, and Automation, we are helping move the world toward a safer, more sustainable future. Each year we ship over one billion units into these applications to support our 10,000+ customers around the globe, including over 50 automotive OEMs. Our global engineering, manufacturing and support, combined with our agility, make Allegro a trusted partner to both large enterprises and regional market leaders worldwide.
2N2222A
Semitronics
NPN; Configuration: SINGLE; Surface Mount: NO; Nominal Transition Frequency (fT): 300 MHz; Maximum Power Dissipation (Abs): .5 W; Maximum Collector Current (IC): .8 A;
ULN2803A
Texas Instruments
ULN2803A by Texas Instruments is a peripheral driver with 8 functions. It has a max supply voltage of 3V and can operate in temperatures ranging from -40 to 85°C. This IC is commonly used as a buffer or inverter based peripheral driver for various applications.
LM317T
Linear Technology
ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR; No. of Terminals: 3; Terminal Form: THROUGH-HOLE; Operating Temperature (TJ-Min): 0 Cel; No. of Functions: 1; JESD-609 Code: e0;
LL4148
Fairchild Semiconductor
RECTIFIER DIODE; Terminal Position: END; Terminal Form: WRAP AROUND; No. of Terminals: 2; Surface Mount: YES; Package Shape: ROUND;
BAV99
Nexperia
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: GULL WING; No. of Terminals: 3; Surface Mount: YES; Package Shape: RECTANGULAR;
1N4148
Synsemi
RECTIFIER DIODE; Terminal Position: AXIAL; Terminal Form: WIRE; No. of Terminals: 2; Surface Mount: NO; Package Shape: ROUND;
08055C104KAT4A
KYOCERA AVX
08055C104KAT4A by KYOCERA AVX is a ceramic capacitor with 0.1uF capacitance, rated for 50V. With X7R temperature characteristics and -55 to 125 °C operating range, it's ideal for SMT applications requiring compact size and high reliability. The wraparound terminals and multi-layer design make it suitable for various electronic circuits.
STM32F405RGT6TR
STMicroelectronics
STM32F405RGT6TR by STMicroelectronics is a 32-bit microcontroller with 64 terminals, operating at a max frequency of 26 MHz. It features DAC and ADC channels, along with DMA support. Ideal for industrial applications requiring low power consumption and high-speed processing capabilities.
DS18B20Z
Dallas Semiconductor
TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL; Mounting Feature: SURFACE MOUNT; No. of Terminals: 8; Package Shape or Style: RECTANGULAR; Housing: PLASTIC; Maximum Accuracy (Cel): 0.50;
LM107H
National Semiconductor
OPERATIONAL AMPLIFIER; Temperature Grade: MILITARY; Terminal Form: WIRE; No. of Terminals: 8; Package Code: TO-99; Package Shape: ROUND;
Nte Electronics
NPN; Configuration: SINGLE; Surface Mount: NO; Maximum Power Dissipation (Abs): 1 W; Maximum Collector Current (IC): .8 A; Terminal Form: WIRE;
L7805CV
L7805CV by STMicroelectronics is a fixed positive single output standard regulator with an output voltage of 5V and max current of 1.5A. It operates in temperatures ranging from 0 to 125°C, making it suitable for various applications requiring stable voltage regulation in electronic circuits.
1N4148WS
Tak Cheong Electronics Holdings
RECTIFIER DIODE; Terminal Position: DUAL; Terminal Form: FLAT; No. of Terminals: 2; Surface Mount: YES; Package Shape: RECTANGULAR;
LM2675M-ADJ/NOPB
SWITCHING REGULATOR; Temperature Grade: AUTOMOTIVE; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES;
0460-202-16141
TE Connectivity
TE Connectivity's 0460-202-16141 contact features a crimp terminal type, machined contact design, and rated AC voltage of 1500V. With a wire gauge range of 20-16 AWG, it is ideal for applications requiring a male round pin-socket contact style in assembly products.
M39029/56351
Souriau-sunbank Connection Technologies
Souriau-sunbank's M39029/56351 is a CRIMP contact type backshell accessory compliant with MIL-DTL-38999. It features FEMALE gender contacts, compatible with M39029/58363 mating contacts. The insertion and removal tools required are M81969/14-10 and M22520/2-10 respectively, making it ideal for military connector applications.
BSS138K-13
Diodes Incorporated
BSS138K-13 by Diodes Inc. is a N-channel FET with 50V DS breakdown voltage, ideal for switching applications. It features single configuration with built-in diode, operating in enhancement mode. With 3 terminals and 0.31A max drain current, it offers high performance in small outline package style.
LM107H by Linear Technology is an Operational Amplifier with a max input offset voltage of 3000uV, common mode reject ratio of 96dB, and min voltage gain of 50000. It is used in military applications due to its MILITARY temperature grade and BIPOLAR technology for precise signal processing in harsh environments.
B340A-13-F
B340A-13-F by Diodes Inc. is a Schottky rectifier diode with 40V reverse test voltage, 3A max output current, and 0.5V max forward voltage. It is used for efficiency applications in electronics due to its small outline package and high operating temperature range of -55°C to 150°C.
Secos
LM2576T-ADJ
Taejin Technology
SWITCHING REGULATOR; Temperature Grade: AUTOMOTIVE; No. of Terminals: 5; Package Shape: RECTANGULAR; Surface Mount: NO; Maximum Input Voltage: 40 V;
LTM4644EY#PBF
Analog Devices
Analog Devices' LTM4644EY#PBF is a 77-terminal switching regulator with a max operating temperature of 125°C. It features current-mode control, pulse width modulation, and a buck switcher configuration. Ideal for automotive applications, this IC has a nominal input voltage of 12V and nominal output voltage of 1.5V, with a max switching frequency of 1300 kHz.
UCC28C45DGKRG4
UCC28C45DGKRG4 by Texas Instruments is a voltage-mode switching controller with a max output current of 1A and max switching frequency of 1000kHz. It operates in industrial temperature grade range (-40 to 105°C) and is suitable for applications requiring precise pulse width modulation control, such as power supplies and converters.
TPS55340PWPR
TPS55340PWPR by Texas Instruments is a switching regulator with 14 terminals, operating b/w -40 to 150°C. It offers a min output voltage of 3V and max output current of 7.75A, suitable for automotive applications due to its compact size and pulse width modulation control technique.
LT1054IS8#TRPBF
LT1054IS8#TRPBF by Analog Devices is a small outline switched capacitor regulator with -5V output voltage. It operates b/w -40 to 85°C, has a max switching frequency of 40 kHz, and can handle input voltages from 3.5V to 15V. Ideal for industrial applications requiring efficient power conversion in compact spaces.
LM3150MHE/NOPB
LM3150MHE/NOPB by Texas Instruments is a switching regulator with 14 terminals, operating temperature range of -40 to 125°C, and output current up to 12A. It features hysteric current mode control, push-pull switcher configuration, and supports input voltages from 6V to 42V. Ideal for automotive applications due to its compact size (5x4.4mm) and high switching frequency of up to 1MHz.
UCC28C43DRG4
UCC28C43DRG4 by Texas Instruments is a voltage-mode switching controller with a max output current of 1A and a max switching frequency of 1kHz. It operates in an industrial temperature range from -40°C to 105°C, making it suitable for various power management applications. With a small outline package style and surface-mount capability, this BICMOS technology-based IC is ideal for compact designs requiring efficient pulse width modulation control.
TPS5450DDAG4
TPS5450DDAG4 by Texas Instruments is a voltage-mode switching regulator with 8 terminals, operating b/w -40 to 125°C. It supports a max output current of 5A and has a wide input voltage range from 5.5V to 36V, making it suitable for automotive applications requiring efficient power management in compact spaces.
LM2576HVS-ADJ/NOPB
SWITCHING REGULATOR; Temperature Grade: AUTOMOTIVE; No. of Terminals: 5; Package Code: TO-263; Package Shape: RECTANGULAR; Surface Mount: YES;
LM2672M-ADJ
LM2672M-ADJ by Texas Instruments is a voltage-mode switching regulator with 1A output current, 1.23V min and 37V max output voltage. Ideal for automotive applications, it operates b/w -40°C to 125°C temperature range and supports pulse width modulation control technique.
LM5007MM/NOPB
LM5007MM/NOPB by Texas Instruments is a switching regulator with a max output voltage of 73V and max output current of 0.5A. It operates in automotive-grade temperatures (-40 to 125°C) making it suitable for automotive applications. With a compact package style, small outline, and thin profile, it is ideal for space-constrained designs.
LMZ14202HTZE/NOPB
LMZ14202HTZE/NOPB by Texas Instruments is a switching regulator with 2A output current, 5-24V output voltage range, and VOLTAGE-MODE control mode. Ideal for automotive applications due to its -40 to 125°C operating temperature range and compact design. Features include small outline package, single terminal position, and buck-boost switcher configuration.
TPS5410DR
TPS5410DR by Texas Instruments is a voltage-mode switching regulator with a max output current of 1A and a max input voltage of 36V. It operates in buck configuration with pulse width modulation control technique, suitable for automotive applications due to its temperature grade. The package style is small outline, making it ideal for space-constrained designs.
LM5022MM/NOPB
Switching Regulator or Controllers; No. of Terminals: 10; Package Code: TSSOP; Package Shape: RECTANGULAR; Surface Mount: YES; Qualification: Not Qualified;
LMR14010ADDCR
LMR14010ADDCR by Texas Instruments is a small outline, thin profile switching regulator with 6 terminals. It operates b/w -40 to 125°C, supporting input voltages from 4-40V and output currents up to 1A. Ideal for automotive applications due to its pulse width modulation control mode and buck switcher configuration at a max frequency of 700kHz.
LM22675MR-ADJ/NOPB
Switching Regulator or Controllers; No. of Terminals: 8; Package Code: SOP; Package Shape: RECTANGULAR; Surface Mount: YES; Control Mode: VOLTAGE-MODE;
LMZ14203TZ-ADJ/NOPB
LMZ14203TZ-ADJ/NOPB by Texas Instruments is a switching regulator with 3A output current, 6V max output voltage, and 1000 kHz max switching frequency. Ideal for automotive applications due to its -40 to 125 °C operating temperature range and compact design with small outline package style.
TPS54040DGQ
TPS54040DGQ by Texas Instruments is a switching regulator with a max output current of 0.5A and a control mode of current-mode PWM. It operates in automotive-grade temperatures, making it suitable for various applications requiring precise voltage regulation in tight spaces.
L5970D013TR
L5970D013TR by STMicroelectronics is a voltage-mode switching regulator with a max output current of 2.25A and a max switching frequency of 280kHz. Ideal for automotive applications, it operates b/w -40 to 125°C, supports input voltages from 4.4V to 36V, and features pulse frequency modulation control technique.
TPS62130ARGTT
TPS62130ARGTT by Texas Instruments is a 16-terminal switching regulator with a 12V nominal input voltage and 3A max output current. It operates in industrial temperature grades from -40 to 85°C, using pulse width modulation control for buck switcher configuration. Ideal for applications requiring efficient power conversion in compact spaces.
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A4490EESTR-T
Allegro MicroSystems
A4490EESTR-T by Allegro MicroSystems is a switching regulator with 2A output current, 630kHz max frequency, and -40 to 85°C operating temp. Ideal for industrial applications requiring efficient power control in compact spaces.
A4490EES-T
SWITCHING REGULATOR; Temperature Grade: INDUSTRIAL; No. of Terminals: 20; Package Code: HVQCCN; Package Shape: SQUARE; Surface Mount: YES;
A4492EESTR-T
A4490SES-T
SWITCHING REGULATOR; Temperature Grade: OTHER; No. of Terminals: 20; Package Code: HVQCCN; Package Shape: SQUARE; Surface Mount: YES;
A4490SESTR-T
Supply Digital Components
$106.00
$54.25
$11.90
$7.29
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12,000 In-Stock
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