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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  • 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
  • CD3217B12 iPad Power Management IC BGA Chip 1-10 PCS

    CD3217B12 iPad Power Management IC BGA Chip 1-10 PCS

    Sale price  $125.95 Regular price $157.20
  • CA1235 Buck Power Module – Adjustable 1.25V–5V Step-Down Supply

    CA1235 Buck Power Module – Adjustable 1.25V–5V Step-Down Supply

    Sale price  $9.04 Regular price $10.58
  • BQ34Z100PWR-G1 Battery Monitor IC TSSOP-14 – 2PCS Pack

    BQ34Z100PWR-G1 Battery Monitor IC TSSOP-14 – 2PCS Pack

    Sale price  $39.15 Regular price $48.34
  • BQ27220YZFR Battery Management IC DSBGA9 – 5-Pack

    BQ27220YZFR Battery Management IC DSBGA9 – 5-Pack

    Sale price  $19.53 Regular price $23.74
  • BQ2057W Battery Charger IC Chip – 10 Pack | BQ2057WSNTR

    BQ2057W Battery Charger IC Chip – 10 Pack | BQ2057WSNTR

    Sale price  $12.87 Regular price $15.38
  • BQ Series Charging IC Chips for Electronics – 5 to 10 Pack

    BQ Series Charging IC Chips for Electronics – 5 to 10 Pack

    Sale price  $32.69 Regular price $40.24
  • ATX Adapter Board Desktop PSU Power Module with USB Charging

    ATX Adapter Board Desktop PSU Power Module with USB Charging

    Sale price  $24.23 Regular price $29.63
  • APL5934 SOP8 Drive IC Chipset 5-Pack – 100% New

    APL5934 SOP8 Drive IC Chipset 5-Pack – 100% New

    Sale price  $12.93 Regular price $15.45
  • APL5933C SOP-8 Power Management IC 5-Pack | APL5933CKAI-TRG

    APL5933C SOP-8 Power Management IC 5-Pack | APL5933CKAI-TRG

    Sale price  $14.24 Regular price $17.10
  • AOZ5332QI QFN Chipset IC – 2 to 10 Pcs, Brand New

    AOZ5332QI QFN Chipset IC – 2 to 10 Pcs, Brand New

    Sale price  $90.43 Regular price $112.65
  • AOZ5038QI5 QFN Drive IC Chipset | 2–5 Pieces Original

    AOZ5038QI5 QFN Drive IC Chipset | 2–5 Pieces Original

    Sale price  $11.82 Regular price $14.06
  • AOZ23645QI Drive IC Chipset BGA – 2 to 5 Pcs, 100% New

    AOZ23645QI Drive IC Chipset BGA – 2 to 5 Pcs, 100% New

    Sale price  $76.14 Regular price $94.73
  • AOZ22559QI QFN Drive IC Chipset | New – 1 to 5 Pieces

    AOZ22559QI QFN Drive IC Chipset | New – 1 to 5 Pieces

    Sale price  $8.29 Regular price $9.64
  • AONS34356C APX9365DQFI-TRG Drive IC DFN QFN – New Original

    AONS34356C APX9365DQFI-TRG Drive IC DFN QFN – New Original

    Sale price  $13.20 Regular price $15.79
  • Adjustable LED Driver PWM Control Board 30-1500mA 9W DC 2.8-6V

    Adjustable LED Driver PWM Control Board 30-1500mA 9W DC 2.8-6V

    Sale price  $14.00 Regular price $16.80
  • AC 220V to DC 5V 1A WiFi Camera Power Adapter USB Module

    AC 220V to DC 5V 1A WiFi Camera Power Adapter USB Module

    Sale price  $28.80 Regular price $35.36
  • AC 220V to DC 12V 2A Isolated Power Supply Module 24W

    AC 220V to DC 12V 2A Isolated Power Supply Module 24W

    Sale price  $11.88 Regular price $14.14
  • AC 220V to DC 12V 2A Isolated Power Supply Module 24W

    AC 220V to DC 12V 2A Isolated Power Supply Module 24W

    Sale price  $11.88 Regular price $14.14
  • AC 220V Motor Speed Controller Forward & Reverse 15–400W

    AC 220V Motor Speed Controller Forward & Reverse 15–400W

    Sale price  $43.19 Regular price $53.40
  • AC 220V 2000W SCR Voltage Regulator – Dimmer & Speed Controller

    AC 220V 2000W SCR Voltage Regulator – Dimmer & Speed Controller

    Sale price  $9.52 Regular price $11.18
  • 8W DC-DC Boost Converter 3V–6V to 12V 3A USB Power Module

    8W DC-DC Boost Converter 3V–6V to 12V 3A USB Power Module

    Sale price  $8.29 Regular price $9.64
  • 75W CC/CV Buck Converter Module – LED Driver, USB Voltmeter & Ammeter

    75W CC/CV Buck Converter Module – LED Driver, USB Voltmeter & Ammeter

    Sale price  $13.58 Regular price $16.28
  • 600W 25A Buck Step-Down DC-DC Converter Module – CV/CC Adjustable

    600W 25A Buck Step-Down DC-DC Converter Module – CV/CC Adjustable

    Sale price  $50.21 Regular price $62.21