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FILTERED PRODUCT SELECTION

DC DC Switching Controllers

Use the filters and product table below to compare DC DC Switching Controllers components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

Parametric Selection Filter options by technical parameters
Stock & Datasheets Review availability and technical references
RFQ & BOM Support Send your target MPN, quantity or BOM
Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Output Type Function Output Configuration Topology Number of Outputs Output Phases Voltage - Supply (Vcc/Vdd) Frequency - Switching Duty Cycle (Max) Synchronous Rectifier Clock Sync Serial Interfaces Control Features Operating Temperature Grade Qualification Mounting Type Supplier Device Package
FAN5029MPX Fairchild Semiconductor

FAN5029MPX

SWITCHING CONTROLLER

Fairchild Semiconductor

173,848 -
Datasheet - 40-WFQFN Exposed Pad Bulk Obsolete PWM Signal Step-Down Positive Buck 5 5 - 1MHz - - No - Current Limit, Enable, Soft Start 0°C ~ 85°C (TA) - - Surface Mount 40-MLP (6x6)
FAN6520AM Fairchild Semiconductor

FAN6520AM

SWITCHING CONTROLLER

Fairchild Semiconductor

8,584 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Tube Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 300kHz 100% Yes No - Enable 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
FAN6520AIMX Fairchild Semiconductor

FAN6520AIMX

SWITCHING CONTROLLER

Fairchild Semiconductor

5,465 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Bulk Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 300kHz 100% Yes No - Enable -40°C ~ 85°C (TA) - - Surface Mount 8-SOIC
FAN7585SN Fairchild Semiconductor

FAN7585SN

SWITCHING CONTROLLER

Fairchild Semiconductor

78,500 -
Datasheet - 24-SDIP (0.300", 7.62mm) Tube Obsolete Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Push-Pull 1 1 15V ~ 30V 9.4kHz 48% No No - Dead Time Control, Frequency Control, Power Good -25°C ~ 85°C (TA) - - Through Hole 24-SDIP
UC3844D Fairchild Semiconductor

UC3844D

SWITCHING CONTROLLER

Fairchild Semiconductor

24,144 -
Datasheet - 14-SOIC (0.209", 5.30mm Width) Tube Obsolete Transistor Driver Step-Up, Step-Down, Step-Up/Step-Down Positive, Isolation Capable Boost, Buck, Buck-Boost, Flyback, Forward 1 1 10V ~ 30V Up to 500kHz 48% No No - Frequency Control 0°C ~ 70°C (TA) - - Surface Mount 14-SOP
UC3843D Fairchild Semiconductor

UC3843D

SWITCHING CONTROLLER

Fairchild Semiconductor

10,903 -
Datasheet - 14-SOIC (0.209", 5.30mm Width) Tube Obsolete - - - - - - - - - - - - - 0°C ~ 70°C (TA) - - Surface Mount 14-SOP
UC3845D Fairchild Semiconductor

UC3845D

SWITCHING CONTROLLER

Fairchild Semiconductor

9,265 -
Datasheet - 14-SOIC (0.154", 3.90mm Width) Tube Obsolete - - - - - - - - - - - - - 0°C ~ 70°C (TA) - - Surface Mount 14-SOIC
FAN6520BMX Fairchild Semiconductor

FAN6520BMX

SWITCHING REGLTR, VOLTAGE-MODE

Fairchild Semiconductor

26,968 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Bulk Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 300kHz 100% Yes No - Enable 0°C ~ 70°C (TA) - - Surface Mount 8-SOIC
FAN6520BIMX Fairchild Semiconductor

FAN6520BIMX

SWITCHING REGLTR, VOLTAGE-MODE

Fairchild Semiconductor

14,023 -
Datasheet - 8-SOIC (0.154", 3.90mm Width) Bulk Obsolete Transistor Driver Step-Down Positive Buck 1 1 4.5V ~ 5.5V 300kHz 100% Yes No - Enable -40°C ~ 85°C (TA) - - Surface Mount 8-SOIC
FAN1577AMX Fairchild Semiconductor

FAN1577AMX

DUAL SWITCHING CONTROLLER

Fairchild Semiconductor

3,355 -
Datasheet - 20-SOIC (0.295", 7.50mm Width) Bulk Obsolete Transistor Driver Step-Down Positive Buck 2 2 8V ~ 15V 340kHz 90% Yes No - Enable, Frequency Control, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 20-SOIC
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WINSUN SOURCING SUPPORT

Need Help Sourcing DC DC Switching Controllers?

Send the target part number, manufacturer, specifications and quantity. Winsun (HK) Electronics can assist with availability checks, quotation support, shortage sourcing and alternative-part options when appropriate.

Availability and lead-time support BOM, shortage and alternative sourcing
FREQUENTLY ASKED QUESTIONS

DC DC Switching Controllers FAQ

Common questions about filtering, comparing and sourcing DC DC Switching Controllers components.

How can I narrow the DC DC Switching Controllers selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific DC DC Switching Controllers part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.