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Power ICs simplify the design of power supply and power management circuits by integrating key circuit functions into a single chip, resulting in higher reliability with significant savings in power consumption, board space and cost. We are a leading supplier of power integrated circuits for power conversion and battery management applications. We offer a wide range of power conversion circuits and controller ICs.Maxim's battery management products provide market leading fuel gauging, charging and monitoring functions.Maxim's power products support a wide variety of applications, including the industrial, communications, automotive, data center, consumer and healthcare markets.
Battery Management Solutions
As portable and wearable devices proliferate, the need for safe, secure, and effective battery management solutions is becoming increasingly important.Maxim's broad portfolio of battery management solutions includes battery chargers, fuel gauges, identifiers, and authenticators and also battery monitors, protectors, and selectors. These solutions reduce cost, save space, and help to significantly extend the battery life of portable products while making them safer..
Switching Regulator - Switching Regulators
Our high-efficiency DC-DC switching regulator ICs generate less heat, consume less current and require less board space than other solutions, enabling more robust operation and longer battery life. Switching regulator circuits use a power switch, an inductor, and a diode to transfer energy from input to output. The basic components of the switching circuit can be rearranged to form a step-down (buck) converter, a step-up (boost) converter, or an inverter (flyback). Feedback and control circuitry can be added to regulate the energy transfer and maintain a constant output.Maxim's wide selection of DC-DC converters offer high switching frequencies, very efficient internal switching elements, wide input voltage ranges, and built-in circuit protection to support a broad range of applications.
Power Management ICs
Power management ICs (PMICs) are integrated circuits that include multiple power rails and power management functions within a single chip. PMICs are frequently used to power small, battery-operated devices since the integration of multiple functions into a single chip results in more efficient use of space and system power. Functions commonly integrated into a PMIC include voltage converters and regulators, battery chargers, battery fuel gauges, LED drivers, real-time clocks, power sequencers, and power control.
Low-power PMICs provide the high-efficiency and compact form factors needed for space-constrained applications such as wearables, hearables, sensors, and IoT devices. High-performance PMICs maximize performance per watt while increasing system efficiency for computationally intensive platforms such as systems-on-chip (SoCs), FPGAs, and application processors.
Isolated Power
Isolated power supplies transfer power from one circuit to another without a direct connection between the two circuits. Power isolation protects electronic loads and equipment operators from exposure to high voltages. Power isolation also prevents ground loops, which produce parasitic currents that can disrupt the output voltage regulation and can introduce galvanic corrosion of the conducting traces. Isolated power supplies are routinely utilized in industrial, consumer, and telecom applications concerned with the protection of sensitive loads and the long-term reliability of the equipment.
Although an isolated power supply is more complex than a non-isolated power supply, it must still fit into a small space and perform with high efficiency.Maxim's Rainier portfolio of isolated DC-DC and AC-DC converters and controllers deliver smaller solution sizes with smaller BOMs.Maxim's patented technology eliminates the optocoupler from the feedback path, saving 30% of the typical board space required and up to 50% off the BOM. Industry-leading features include:
Wide input voltage ranges
High-efficiency operation
Small packaging
No-opto technology
Adjustable switching frequencies
Charge Pumps
A charge pump (or Switched Capacitor Converter) IC converts, and optionally regulates, voltages using switching technology and capacitive-energy storage elements. Charge pumps offer high-efficiency and compact solutions with an inductor-less design. Unregulated charge pumps maintain a fixed integer ratio of input to output voltage and exhibit higher efficiency and compact solution size than buck or boost converters. Regulated charge pumps maintain a constant output with a varying voltage input. Maxim’s offerings include both unregulated and regulated output charge pumps that support a wide range of output power.
Linear Regulators (LDOs)
We offer a wide range of high-performance low-dropout (LDO) linear regulators. A low dropout regulator is a voltage regulator that operates with a very small voltage difference between the regulated output voltage and the unregulated input voltage.Maxim's low-dropout linear regulators support specific performance applications where switching voltage regulators are not the obvious choice, including:
Low-noise, high-PSRR LDOs where signal integrity is paramount
LDOs that withstand high voltages to protect mission critical circuitry from transients and reverse polarity
Low-power, tiny LDOs that preserve space and battery life in portable applications.
LDOs for digital core supplies where low voltages and high currents dominate.
Additional features such as short-circuit protection and reverse-current blocking makeMaxim's LDOs the ideal choice when your application calls for performance.
LED Driver - LED Driver ICs
High-brightness LED drivers are integrated circuits that are optimized to efficiently drive strings of high-brightness LEDs. Maxim's continually expanding portfolio includes products covering the full range of efficient switch-mode topologies (step-down, step-up, SEPIC) as well as some linear LED drivers.
Motor Driver ICs
Our DC motor driver family provides the simplest and most flexible IC solution available for driving brushed DC motors.
Features that simplify designs include integrated power MOSFETs and a charge pump-less power architecture that provides integrated current limiting and flexible current regulation modes. Monitoring and safety features such as overvoltage, short-circuit, and over-temperature protection, along with fault diagnostics ensure robust performance. In addition, ultra low RON and a flexible supply voltage enable cooler running temperatures for long lived operation.
Power Protection and Control
Power protection and control ICs are used to monitor the input voltage to a load to ensure it is within specified bounds. If an out-of-bounds level is detected, a protection and control IC can either regulate the voltage or current, or switch off the power source to protect the load from damage. Reverse-voltage protection prevents system damage when the input voltage is accidentally reversed or when the output voltage is shorted to a higher voltage rail.
Power protection and control ICs offer a range of functions from load switching, such as with USB power switches, to fully configurable overcurrent, overvoltage, and undervoltage monitoring. Specialized protection and control circuits manage redundant power systems and in-rush current for hot board insertion applications.
Display Power Control
Maxim Integrated manufactures a wide variety of products that combine analog processing and logic with power circuitry to control a variety of displays including liquid crystal displays (LCDs), dot matrix, and segmented displays.
Power Sequencer, Voltage Supervisor, & Voltage Monitors
Analog ICs provide complete power supply monitoring
Voltage supervisors monitor the supply voltages of a microprocessor-based system to ensure that the system starts up properly every time, that system errors are detected and and minimized, and that the system returns safely from an error with little or no user intervention. Power supply sequencers enable/disable the power supplies in order at power-up and power-down. Voltage monitors continuously check the power-supply output voltages and currents for over and under threshold levels. If a fault is detected, the supervisory IC automatically shuts down the system in an orderly fashion.
Power Over Ethernet Devices
Maxim's IEEE® 802.3af/at-compliant products for power-sourcing equipment (PSE) and powered devices (PDs) provide an end-to-end PoE solution. Besides meeting the IEEE standard and ensuring interoperability,Maxim's PSE products are rated for 80V (absolute maximum rating). PD products are rated for 100V to ensure robustness. Some applications require power levels above the standard (PoE+). Maxim also offers PSE and PD solutions that provide up to 70W.
MOSFET Drivers and Controllers
A MOSFET driver IC is a high-gain amplifier that uses a low-voltage input to switch on/off discrete power MOSFETS in high-voltage applications. MOSFET driver ICs are commonly used to switch MOSFETS in a half-bridge circuit. The MOSFET driver IC controls switch timing to ensure that only one transistor conducts at a time, preventing potentially damaging shoot-through current.
In applications where multiple power supplies are connected in parallel (e.g., backup power supplies), ORing Schottky diodes are commonly used for protection. However, if a large current is required, the diode forward-voltage drop causes significant power loss, which means a heatsink is required. For these applications, it is better to use a MOSFET instead of a Schottky diode. MOSFETS, which have a lower on-resistance than Schottky diodes, produce less heat and therefore do not need heatsinks, making the overall solution size smaller.
ORing MOSFET controllers provide the control logic required for this type of circuit. Single and dual drivers, along with secondary-side synchronous drivers, provide even greater efficiency for isolated designs. We provide evaluation kits and reference designs for quick prototyping and design verification. Industry-leading features ofMaxim's MOSFET driver ICs include fast delay times, small package sizes, high efficiency, and better reliability.
Power Modules
Himalaya power modules integrate most of the components needed for a power supply—synchronous switching regulator IC, inductor, resistors, and capacitors—into a single, compact package. The result is an efficient and compact fully integrated solution that complies with EMI requirements and makes power-supply design as easy as possible. Designers can migrate, as needed, between module and IC to tradeoff cost, size, and ease of use.
The high-efficiency, low-profile, wide input voltage, step-down DC-DC power modules are available in a highly integrated system-in-package (SiP) or ultra-small micro system level IC (uSLIC™) package. These ready-made, reliable, easy-to-use modules save PCB space and reduce design time for popular 5V, 12V, 24V, 36V, 48V, and 60V voltage rails.
Himalaya power modules enable quick time to market with industry-standard manufacturing and reflow processes. Himalaya uSLIC power modules leverage advanced packaging technology to shrink the power supply solution size by 2.25 times. A select group of Himalaya power modules are certified with compliance to the CISPR 22 electromagnetic interference (EMI) standard to help improve the first-time success rate for EMI certification of your end products.
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