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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
LM2678SX-12/NOPB

LM2678SX-12/NOPB

IC REG BUCK 12V 5A TO263

Texas Instruments

651
LM2678SX-12/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tape & Reel (TR) Active Step-Down Positive Fixed 1 15V Buck 40V 12V - 5A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
ISL85033IRTZ

ISL85033IRTZ

IC REG BUCK ADJ 3A SGL/DL 28TQFN

Renesas Electronics Corporation

633
ISL85033IRTZ

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 or 2 4.5V Buck 28V 0.8V 28V 3A 300kHz ~ 2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 28-TQFN (4x4)
LM2678SX-3.3/NOPB

LM2678SX-3.3/NOPB

IC REG BUCK 3.3V 5A TO263

Texas Instruments

618
LM2678SX-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 - 5A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LM2678T-5.0/NOPB

LM2678T-5.0/NOPB

IC REG BUCK 5V 5A TO220-7

Texas Instruments

252
LM2678T-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-7 Formed Leads Tube Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 5A 260kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-7
MPQ4572GQB-AEC1-P

MPQ4572GQB-AEC1-P

IC REG BUCK ADJ 2A 12QFN

Monolithic Power Systems Inc.

896
MPQ4572GQB-AEC1-P

Datasheet

MPQ 12-VFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 60V 1V 54V 2A 400kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 12-QFN (2.5x3)
LM536025QPWPTQ1

LM536025QPWPTQ1

IC REG BUCK 5V 2A 16HTSSOP

Texas Instruments

769
LM536025QPWPTQ1

Datasheet

- 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.9V Buck 36V 5V - 2A 2.1MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
MAX20405AFOA/VY+

MAX20405AFOA/VY+

IC REG BCK PROG/0.8V 5A 17FC2QFN

Analog Devices Inc./Maxim Integrated

1,191
MAX20405AFOA/VY+

Datasheet

- 17-PowerWFQFN Tray Active Step-Down Positive Programmable (Fixed) 1 3V Buck 36V 0.8V (5V) 10V 5A 2.1MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 17-FC2QFN (3.5x3.75)
LM22678TJ-5.0/NOPB

LM22678TJ-5.0/NOPB

IC REG BUCK 5V 5A TO263-7

Texas Instruments

3,768
LM22678TJ-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-7 Thin Tape & Reel (TR) Active Step-Down Positive Fixed 1 4.5V Buck 42V 5V - 5A 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263-7 Thin
MPQ4572GQBE-AEC1-Z

MPQ4572GQBE-AEC1-Z

IC REG BUCK ADJ 2A 12QFN

Monolithic Power Systems Inc.

2,479
MPQ4572GQBE-AEC1-Z

Datasheet

MPQ 12-VFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 60V 1V 54V 2A 400kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 12-QFN (2.5x3)
MAX16935SAUE/V+

MAX16935SAUE/V+

IC REG BUCK ADJ/1V 3.5A 16TSSOP

Analog Devices Inc./Maxim Integrated

1,339
MAX16935SAUE/V+

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable (Fixed) 1 3.5V Buck 36V 1V (5V) 10V 3.5A 220kHz ~ 2.2MHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LM2676S-12/NOPB

LM2676S-12/NOPB

IC REG BUCK 12V 3A TO263

Texas Instruments

655
LM2676S-12/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tube Active Step-Down Positive Fixed 1 8V Buck 40V 12V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LM2594HVM-ADJ/NOPB

LM2594HVM-ADJ/NOPB

IC REG BUCK ADJ 500MA 8SOIC

Texas Instruments

626
LM2594HVM-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4.5V Buck 60V 1.2V 57V 500mA 150kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LM2673S-ADJ/NOPB

LM2673S-ADJ/NOPB

IC REG BUCK ADJ 3A TO263

Texas Instruments

518
LM2673S-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tube Active Step-Down Positive Adjustable 1 8V Buck 40V 1.2V 37V 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LM2676SD-5.0/NOPB

LM2676SD-5.0/NOPB

IC REG BUCK 5V 3A 14VSON

Texas Instruments

320
LM2676SD-5.0/NOPB

Datasheet

SIMPLE SWITCHER® 14-VDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 14-VSON (5x6)
LM2673S-12/NOPB

LM2673S-12/NOPB

IC REG BUCK 12V 3A TO263

Texas Instruments

259
LM2673S-12/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tube Active Step-Down Positive Fixed 1 8V Buck 40V 12V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
ISL91110IRAZ-T7A

ISL91110IRAZ-T7A

IC REG BUCK BOOST ADJ 2A 20QFN

Renesas Electronics Corporation

208
ISL91110IRAZ-T7A

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 0.8V 5.2V 2A 2.5MHz - No - -40°C ~ 85°C (TA) Surface Mount 20-QFN (4x4)
RT6365GSP

RT6365GSP

IC REG BUCK ADJ 5A 8SOP

Richtek USA Inc.

1,930
RT6365GSP

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 60V 0.8V 60V 5A 100kHz ~ 2.5MHz - No - -40°C ~ 150°C (TJ) Surface Mount 8-SOP-EP
IR38363MTRPBFAUMA1

IR38363MTRPBFAUMA1

IC REG BUCK ADJ 15A 34PQFN

Infineon Technologies

5,278
IR38363MTRPBFAUMA1

Datasheet

- 34-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 1.5V Buck 16V 0.5V 14V 15A 150kHz ~ 1.5MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 34-PQFN (5x7)
TPS53318DQPT

TPS53318DQPT

IC REG BUCK ADJ 8A 22LSON-CLIP

Texas Instruments

4,384
TPS53318DQPT

Datasheet

D-CAP™, Eco-Mode™ 22-PowerLFDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 1.5V Buck 22V 0.6V 5.5V 8A 250kHz ~ 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 22-LSON-CLIP (6x5)
LM22676QMRE-ADJ/NOPB

LM22676QMRE-ADJ/NOPB

IC REG BUCK ADJ 3A 8SOPWR

Texas Instruments

521
LM22676QMRE-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 1.285V 37V 3A 500kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
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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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