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Voltage Regulators - DC DC Switching Regulators

Manufacturer Series Package/Case Packaging Part Status Function Output Configuration Output Type Number of Outputs Voltage - Input (Min) Topology Voltage - Input (Max) Voltage - Output (Min/Fixed) Voltage - Output (Max) Current - Output Frequency - Switching Qualification Synchronous Rectifier Grade Operating Temperature Mounting Style Supplier Device 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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Part Status Function Output Configuration Output Type Number of Outputs Voltage - Input (Min) Topology Voltage - Input (Max) Voltage - Output (Min/Fixed) Voltage - Output (Max) Current - Output Frequency - Switching Qualification Synchronous Rectifier Grade Operating Temperature Mounting Style Supplier Device Package
LM22680MR-ADJ/NOPB

LM22680MR-ADJ/NOPB

IC REG BUCK ADJ 2A 8SOPWR

Texas Instruments

2,921
LM22680MR-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® 8-PowerSOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4.5V Buck 42V 1.285V 37V 2A 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
LM76002RNPT

LM76002RNPT

IC REG BUCK ADJ 2.5A 30WQFN

Texas Instruments

3,460
LM76002RNPT

Datasheet

- 30-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 60V 1V 57V 2.5A 300kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 30-WQFN (6x4)
LM2597M-ADJ/NOPB

LM2597M-ADJ/NOPB

IC REG BUCK ADJ 500MA 8SOIC

Texas Instruments

1,846
LM2597M-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4.5V Buck 40V 1.2V 37V 500mA 150kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LM2676T-5.0/NOPB

LM2676T-5.0/NOPB

IC REG BUCK 5V 3A TO220-7

Texas Instruments

863
LM2676T-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-7 Formed Leads Tube Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-7
LM2676SDX-ADJ/NOPB

LM2676SDX-ADJ/NOPB

IC REG BUCK ADJ 3A 14VSON

Texas Instruments

473
LM2676SDX-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® 14-VDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 8V Buck 40V 1.2V 37V 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 14-VSON (5x6)
LM2597M-5.0/NOPB

LM2597M-5.0/NOPB

IC REG BUCK 5V 500MA 8SOIC

Texas Instruments

373
LM2597M-5.0/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 4.5V Buck 40V 5V - 500mA 150kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LM2676T-12/NOPB

LM2676T-12/NOPB

IC REG BUCK 12V 3A TO220-7

Texas Instruments

360
LM2676T-12/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-7 Formed Leads Tube Active Step-Down Positive Fixed 1 8V Buck 40V 12V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-7
LM2673SX-5.0/NOPB

LM2673SX-5.0/NOPB

IC REG BUCK 5V 3A TO263

Texas Instruments

697
LM2673SX-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tape & Reel (TR) Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LM2673SX-3.3/NOPB

LM2673SX-3.3/NOPB

IC REG BUCK 3.3V 3A TO263

Texas Instruments

555
LM2673SX-3.3/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tape & Reel (TR) Active Step-Down Positive Fixed 1 8V Buck 40V 3.3V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LM2673T-ADJ/NOPB

LM2673T-ADJ/NOPB

IC REG BUCK ADJ 3A TO220-7

Texas Instruments

310
LM2673T-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-7 Formed Leads Tube Active Step-Down Positive Adjustable 1 8V Buck 40V 1.2V 37V 3A 260kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-7
MAX17223ELT+T

MAX17223ELT+T

IC REG BOOST ADJ 500MA 6UDFN

Analog Devices Inc./Maxim Integrated

9,175
MAX17223ELT+T

Datasheet

- 6-WDFN Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.4V Boost 5.5V 1.8V 5V 500mA (Switch) 2.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 6-µDFN (2x2)
TPS54540BQDDARQ1

TPS54540BQDDARQ1

IC REG BCK SPLIT RAIL ADJ 8SOPWR

Texas Instruments

7,039
TPS54540BQDDARQ1

Datasheet

Eco-Mode™ 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck, Split Rail 42V 0.8V 41.1V 5A 100kHz ~ 2.5MHz AEC-Q100 No Automotive -40°C ~ 125°C (TA) Surface Mount 8-SO PowerPad
ADP2302ARDZ-5.0-R7

ADP2302ARDZ-5.0-R7

IC REG BUCK 5V 2A 8SOIC

Analog Devices Inc.

5,633
ADP2302ARDZ-5.0-R7

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck 20V 5V - 2A 700kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC-EP
ADP2302ARDZ-3.3-R7

ADP2302ARDZ-3.3-R7

IC REG BUCK 3.3V 2A 8SOIC

Analog Devices Inc.

3,352
ADP2302ARDZ-3.3-R7

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck 20V 3.3V - 2A 700kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC-EP
L4973D3.3-013TR

L4973D3.3-013TR

IC REG BUCK ADJ/0.5V 3.5A 20SO

STMicroelectronics

3,916
L4973D3.3-013TR

Datasheet

- 20-SOIC (0.295", 7.50mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable (Fixed) 1 8V Buck 55V 0.5V (3.3V) 50V 3.5A 100kHz ~ 300kHz - No - -40°C ~ 150°C (TJ) Surface Mount 20-SO
MAX17644AATE+

MAX17644AATE+

IC REG BUCK 3.3V 2.7A 16TQFN

Analog Devices Inc./Maxim Integrated

636
MAX17644AATE+

Datasheet

Himalaya 16-WFQFN Exposed Pad Tray Active Step-Down Positive Fixed 1 4.5V Buck 36V 3.3V - 2.7A 400kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 16-TQFN (3x3)
MPQ8616GL-6-Z

MPQ8616GL-6-Z

IC REG BUCK ADJ 6A 14QFN

Monolithic Power Systems Inc.

4,088
MPQ8616GL-6-Z

Datasheet

- 14-VFQFN Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 1.5V Buck 6V 0.61V 4.5V 6A 300kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 14-QFN (3x4)
MAX17551AUB+T

MAX17551AUB+T

IC REG BUCK ADJ 50MA 10UMAX

Analog Devices Inc./Maxim Integrated

1,630
MAX17551AUB+T

Datasheet

Himalaya 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 60V 0.8V 54V 50mA 100kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-uMAX/uSOP
LM2675N-5.0/NOPB

LM2675N-5.0/NOPB

IC REG BUCK 5V 1A 8PDIP

Texas Instruments

1,275
LM2675N-5.0/NOPB

Datasheet

SIMPLE SWITCHER® 8-DIP (0.300", 7.62mm) Tube Active Step-Down Positive Fixed 1 6.5V Buck 40V 5V - 1A 260kHz - No - -40°C ~ 125°C (TJ) Through Hole 8-PDIP
ADP2119ACPZ-R7

ADP2119ACPZ-R7

IC REG BUCK ADJ 2A 10LFCSP

Analog Devices Inc.

26,117
ADP2119ACPZ-R7

Datasheet

- 10-VFDFN Exposed Pad, CSP Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.3V Buck 5.5V 0.6V 5.5V 2A 1.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-LFCSP-WD (3x3)
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Voltage Regulators - DC-DC Switching Regulators Overview

DC-DC Switching Regulators, also known as DC-DC converters, are essential components in modern power management systems. Unlike linear regulators that dissipate excess energy as heat, switching regulators use high-frequency switching elements and energy storage components (inductors, capacitors) to efficiently step up, step down, or invert voltage levels. This design enables conversion efficiency levels of 80–95% or higher, making them indispensable for portable electronics, industrial automation, automotive systems, and communication equipment.

Key Advantages

High Efficiency: By minimizing energy loss, DC-DC switching regulators extend battery life in mobile devices and reduce overall power consumption in embedded systems.
Flexibility: Available in buck (step-down), boost (step-up), buck-boost, and inverting topologies, they provide engineers with versatile solutions for a wide range of voltage conversion needs.
Compact Size: With the integration of control circuitry and optimized packaging, regulators are now available in ultra-small footprints such as QFN and TSSOP, enabling compact PCB designs.
Thermal Performance: Efficient energy transfer reduces heat generation, which is critical in high-density boards and automotive ECUs.

Typical Applications

Consumer Electronics: Smartphones, tablets, wearables, and gaming devices rely on DC-DC converters for stable operation of processors, memory, and RF modules.
Industrial Equipment: Used in factory automation, robotics, and sensor networks where stable power is critical.
Automotive Systems: Powertrain control modules, infotainment units, and ADAS (Advanced Driver Assistance Systems) require efficient DC-DC conversion to meet stringent performance and reliability standards.
Telecommunication & Networking: Routers, base stations, and IoT gateways integrate switching regulators to ensure consistent power delivery under variable loads.

Features to Consider

When selecting a DC-DC switching regulator, engineers should evaluate:
Input voltage range and output voltage accuracy
Maximum output current capability
Efficiency curves under various load conditions
Switching frequency and EMI performance
Package type and thermal dissipation
Compliance with RoHS/REACH and automotive AEC-Q100 standards

Inventory and Availability

At OEMSTOCK.COM, we maintain a broad selection of Voltage Regulators – DC-DC Switching Regulators from leading manufacturers such as Texas Instruments, Analog Devices, Nuvoton, and Nisshinbo Micro Devices. Products are available in multiple packages and stocked in significant quantities to support both prototype development and large-scale production. Our global sourcing network ensures competitive pricing and reliable lead times, while our RFQ system allows engineers and procurement teams to request customized quotations instantly.
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