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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  • DC-DC Step-Down Converter 9–36V to 5V 3A Dual USB Power Module

    DC-DC Step-Down Converter 9–36V to 5V 3A Dual USB Power Module

    Sale price  $11.88 Regular price $14.14
  • DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    Sale price  $68.24 Regular price $84.83
  • DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    Sale price  $68.24 Regular price $84.83
  • DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    Sale price  $68.24 Regular price $84.83
  • DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    Sale price  $68.24 Regular price $84.83
  • DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    DC-DC Step-Down Converter 12V 10A 120W | 20–90V Wide Input

    Sale price  $68.24 Regular price $84.83
  • DC-DC Step Down Buck Converter 8A 25V to 3.3V/5V/9V/12V Module

    DC-DC Step Down Buck Converter 8A 25V to 3.3V/5V/9V/12V Module

    Sale price  $15.74 Regular price $18.98
  • DC-DC Power Supply Module – USB Step Up/Down 1.2V–24V

    DC-DC Power Supply Module – USB Step Up/Down 1.2V–24V

    Sale price  $12.15 Regular price $14.48
  • DC-DC LTC1871 Step-Up Boost Converter 3-35V with Voltmeter

    DC-DC LTC1871 Step-Up Boost Converter 3-35V with Voltmeter

    Sale price  $59.48 Regular price $73.84
  • DC-DC Buck Converter 6-24V to 5V 3A Dual USB Step-Down Module

    DC-DC Buck Converter 6-24V to 5V 3A Dual USB Step-Down Module

    Sale price  $8.62 Regular price $10.05
  • DC-DC Buck Converter 12–24V to 5V 3A | Adjustable Output

    DC-DC Buck Converter 12–24V to 5V 3A | Adjustable Output

    Sale price  $8.53 Regular price $9.94
  • DC-DC Boost Converter Lithium Battery Charger Module DD05CVSA

    DC-DC Boost Converter Lithium Battery Charger Module DD05CVSA

    Sale price  $8.68 Regular price $10.13
  • DC Step Down Voltage Regulator Module 5–16V to 1.25–5V 3A

    DC Step Down Voltage Regulator Module 5–16V to 1.25–5V 3A

    Sale price  $16.10 Regular price $19.43
  • DC Step Down Voltage Regulator Module 5-16V to 1.25-5V 3A

    DC Step Down Voltage Regulator Module 5-16V to 1.25-5V 3A

    Sale price  $16.10 Regular price $19.43
  • DC Brushless Motor Control Board 6V 12V 24V Speed Governor DIY

    DC Brushless Motor Control Board 6V 12V 24V Speed Governor DIY

    Sale price  $20.13 Regular price $24.49
  • DC 8V-24V Brushless Motor PWM Speed Controller Driver Board

    DC 8V-24V Brushless Motor PWM Speed Controller Driver Board

    Sale price  $12.45 Regular price $14.85
  • DC 5V–12V Step-Up Booster Module for 18650 Lithium Battery UPS

    DC 5V–12V Step-Up Booster Module for 18650 Lithium Battery UPS

    Sale price  $11.82 Regular price $14.06
  • DC 400W 15A Step Up Boost Converter Constant Current Module

    DC 400W 15A Step Up Boost Converter Constant Current Module

    Sale price  $17.74 Regular price $21.49
  • DC 12V/24V 30A LED Dimmer Controller for Single Color Strip

    DC 12V/24V 30A LED Dimmer Controller for Single Color Strip

    Sale price  $16.81 Regular price $20.33
  • DC 12V PWM Fan Speed Controller Module – Buzzer Alarm & NTC

    DC 12V PWM Fan Speed Controller Module – Buzzer Alarm & NTC

    Sale price  $12.84 Regular price $15.34
  • CS5463-ISZ Power Energy IC SSOP-24 – 10 PCS Pack

    CS5463-ISZ Power Energy IC SSOP-24 – 10 PCS Pack

    Sale price  $147.00 Regular price $183.60
  • CNMAWAY 0.75KW Frequency Converter 220V to 3-Phase RS485 Modbus

    CNMAWAY 0.75KW Frequency Converter 220V to 3-Phase RS485 Modbus

    Sale price  $76.02 Regular price $94.58
  • CN3705 5A Battery Charging IC TSSOP-16 – 10 PCS Pack

    CN3705 5A Battery Charging IC TSSOP-16 – 10 PCS Pack

    Sale price  $151.15 Regular price $188.81
  • CN3155 SOP-8 LTO Battery Charge IC 1A – 10 Pack

    CN3155 SOP-8 LTO Battery Charge IC 1A – 10 Pack

    Sale price  $97.84 Regular price $121.95