DC-DC Converters & Power Management

DC-DC Converters & Power Management ICs

Power your next project with confidence. Our DC-DC Converters & Power Management collection brings together a comprehensive range of high-performance integrated circuits and modules — from compact SMD buck converter chips to high-current step-down modules, AC-DC controller ICs, battery charging controllers, LED driver ICs, and USB-C PD fast-charge boards. Whether you're an electronics engineer, hobbyist, or production buyer, you'll find trusted brands and bulk-value packs designed to meet demanding power supply design requirements across consumer electronics, industrial systems, and embedded applications.

Why Choose Our Power Management ICs?

  • Wide Selection: Buck, boost, AC-DC, and battery management solutions all in one place.
  • Bulk Value Packs: Save more with 10-packs, 100-packs, and multi-variant bundles.
  • Industry-Standard Packages: SMD, QFN, SOT23, SOP, SSOP, DFN and more — ready for PCB assembly.
  • Trusted Series: TPS, TLV, TNY, TOP, MP, CR, CN, AW, OB, and other leading IC families.
  • Application Versatility: Ideal for IoT devices, LED lighting, battery-powered gadgets, power adapters, and more.

Featured Products

Explore some of our most popular power management solutions:

Product Categories at a Glance

  • DC-DC Buck Converters: Step down voltage efficiently with minimal heat and power loss.
  • DC-DC Boost Converters: Step up voltage for LED drivers, sensor rails, and more.
  • AC-DC Controller ICs: Primary-side switching controllers for power adapters and chargers (TNY, TOP, OB series).
  • Battery Management ICs: Li-Ion/Li-Po charging controllers with protection features.
  • LED Driver ICs: Boost-based and constant-current LED drivers for displays and lighting.
  • USB-C PD Modules: Fast-charge trigger boards and decoy circuits supporting multiple PD voltages.

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What is the difference between a DC-DC buck converter and a boost converter IC?

A: A DC-DC buck converter (step-down converter) reduces a higher input voltage to a lower output voltage with high efficiency — for example, converting 12V to 3.3V. A boost converter does the opposite, stepping up a lower input voltage to a higher output voltage, commonly used in LED driver circuits and battery-powered systems that need a higher rail voltage than the battery can provide.

Q: What are AC-DC controller ICs like the TNY and TOP series used for?

A: AC-DC controller ICs such as the TNY284/288 and TOP series are used in offline switching power supplies that convert mains AC voltage (e.g., 110V/220V) to regulated DC output. They are commonly found inside wall adapters, USB chargers, set-top boxes, and other consumer electronics power supplies, handling switching, regulation, and protection in a compact package.

Q: Are these DC-DC converter ICs suitable for professional PCB assembly?

A: Yes. All ICs in this collection are offered in industry-standard SMD and through-hole packages — including QFN, SOT23, SOP, SSOP, DFN, and DIP — making them fully compatible with automated PCB pick-and-place assembly, reflow soldering, and hand soldering processes. The bulk 10-pack and 100-pack options are especially cost-effective for production runs.

Q: What should I consider when selecting a power management IC for my design?

A: Key parameters to evaluate include input/output voltage range, maximum output current, switching frequency, package type, efficiency rating, and any integrated protection features (overcurrent, overvoltage, thermal shutdown). Consulting the IC's datasheet is essential to ensure the device meets your application's power budget, thermal constraints, and PCB layout requirements.

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  • PWM DC Motor Speed Controller 5V–12V 10A LED Dimmer Module

    PWM DC Motor Speed Controller 5V–12V 10A LED Dimmer Module

    Sale price  $6.59 Regular price $7.50
  • PWM DC Motor Speed Controller 20A DC 10-60V Drive Module

    PWM DC Motor Speed Controller 20A DC 10-60V Drive Module

    Sale price  $13.61 Regular price $16.31
  • PWM DC Motor Speed Controller 10A 90W Adjustable Module

    PWM DC Motor Speed Controller 10A 90W Adjustable Module

    Sale price  $11.58 Regular price $13.76
  • PW28 Dual Power Filter Amplifier Board 25A Rectifier DIY Kit

    PW28 Dual Power Filter Amplifier Board 25A Rectifier DIY Kit

    Sale price  $16.43 Regular price $19.84
  • PT4115-89E LED Driver Buck Converter IC SOT-89 – 10 Pack

    PT4115-89E LED Driver Buck Converter IC SOT-89 – 10 Pack

    Sale price  $26.35 Regular price $32.29
  • OZ9966SN LCD Power Management IC SSOP-24 – 10 PCS Pack

    OZ9966SN LCD Power Management IC SSOP-24 – 10 PCS Pack

    Sale price  $71.95 Regular price $89.48
  • NCP81270 NCP81530 Drive IC SMD Chipset for Motherboard (1pc)

    NCP81270 NCP81530 Drive IC SMD Chipset for Motherboard (1pc)

    Sale price  $10.45 Regular price $12.34
  • NCP81269MNTXG QFN-20 Drive IC Chipset | 2–10 Pieces

    NCP81269MNTXG QFN-20 Drive IC Chipset | 2–10 Pieces

    Sale price  $76.82 Regular price $95.59
  • MT36291 2.5A 1.2MHz Boost Converter IC SOT-23-6 – 20 PCS

    MT36291 2.5A 1.2MHz Boost Converter IC SOT-23-6 – 20 PCS

    Sale price  $35.83 Regular price $44.18
  • MT3540-F23 1.5A 28V Boost Converter SOT-23-5 – 20 Pack ICs

    MT3540-F23 1.5A 28V Boost Converter SOT-23-5 – 20 Pack ICs

    Sale price  $33.23 Regular price $40.91
  • MT3540 1.5A 28V Boost Converter IC SOT-23-5 – 10 Pack

    MT3540 1.5A 28V Boost Converter IC SOT-23-5 – 10 Pack

    Sale price  $20.70 Regular price $25.20
  • MT3420B 2A 1.5MHz Sync Buck Converter IC SOT-23-6 – 10 Pack

    MT3420B 2A 1.5MHz Sync Buck Converter IC SOT-23-6 – 10 Pack

    Sale price  $26.20 Regular price $32.10
  • MT2499A Buck Converter IC ESOP-8 4.5V–21V 340kHz – 10 Pack

    MT2499A Buck Converter IC ESOP-8 4.5V–21V 340kHz – 10 Pack

    Sale price  $56.49 Regular price $70.09
  • MPM3620GQV-Z MPM3630GQV-Z QFN-20 Step-Down Converter 5PCS

    MPM3620GQV-Z MPM3630GQV-Z QFN-20 Step-Down Converter 5PCS

    Sale price  $48.99 Regular price $60.68
  • MP9943GQ-Z QFN-8 Chipset 10-Pack – 100% New IC Chips

    MP9943GQ-Z QFN-8 Chipset 10-Pack – 100% New IC Chips

    Sale price  $30.24 Regular price $37.16
  • MP2945GU MP2964GQK MP2979A Drive IC QFN SMD Chip – New

    MP2945GU MP2964GQK MP2979A Drive IC QFN SMD Chip – New

    Sale price  $9.85 Regular price $11.59
  • MP2315SGJ-Z SOT23-8 Drive IC Chip | 2–5 Piece SMD Pack

    MP2315SGJ-Z SOT23-8 Drive IC Chip | 2–5 Piece SMD Pack

    Sale price  $14.24 Regular price $17.10
  • MP1652GTF SOT-563 Drive IC Chipset | 5–10 Piece Pack

    MP1652GTF SOT-563 Drive IC Chipset | 5–10 Piece Pack

    Sale price  $15.95 Regular price $19.24
  • MP1584EN DC-DC Step-Down Module 3A Adjustable Buck Converter

    MP1584EN DC-DC Step-Down Module 3A Adjustable Buck Converter

    Sale price  $8.47 Regular price $9.86
  • Mini560 5A DC-DC Buck Converter – Step Down Voltage Regulator

    Mini560 5A DC-DC Buck Converter – Step Down Voltage Regulator

    Sale price  $9.13 Regular price $10.69
  • Mini360 DC-DC Buck Converter Step-Down Module 4.75–23V, 340KHz

    Mini360 DC-DC Buck Converter Step-Down Module 4.75–23V, 340KHz

    Sale price  $7.16 Regular price $8.21
  • Mini PWM DC Motor Speed Controller 5V–35V 5A 90W Adjustable

    Mini PWM DC Motor Speed Controller 5V–35V 5A 90W Adjustable

    Sale price  $6.95 Regular price $7.95
  • Mini PWM DC Motor Speed Controller 3V–35V 90W 5A LED Dimmer

    Mini PWM DC Motor Speed Controller 3V–35V 90W 5A LED Dimmer

    Sale price  $6.26 Regular price $7.09
  • Mini Boost Step-Up Module 5V/8V/9V/12V 1.5A LED DIY Board

    Mini Boost Step-Up Module 5V/8V/9V/12V 1.5A LED DIY Board

    Sale price  $6.77 Regular price $7.73