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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
LM2575HVT-3.3/NOPB

LM2575HVT-3.3/NOPB

IC REG BUCK 3.3V 1A TO220-5

Texas Instruments

269
LM2575HVT-3.3/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-5 Tube Active Step-Down Positive Fixed 1 4V Buck 60V 3.3V - 1A 52kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-5
MAX20079AATP/VY+

MAX20079AATP/VY+

IC REG BCK PROG 3.5A 20SWTQFN

Analog Devices Inc./Maxim Integrated

450
MAX20079AATP/VY+

Datasheet

- 20-WFQFN Exposed Pad Tray Active Step-Down Positive Programmable (Fixed) 1 3V Buck 36V 3V, 5V 12V 3.5A 2.1MHz - Yes - -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 20-SWTQFN (4x4)
MAX5097AATE+

MAX5097AATE+

IC REG BUCK ADJ/1.24V 16TQFN

Analog Devices Inc./Maxim Integrated

2,786
MAX5097AATE+

Datasheet

- 16-WQFN Exposed Pad Tube Active Step-Down Positive Adjustable (Fixed) 1 5V Buck 40V 1.24V (3.3V) 11V 600mA 330kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TQFN (5x5)
MPQ4571GQB-AEC1-P

MPQ4571GQB-AEC1-P

IC REG BUCK ADJ 1A 12QFN

Monolithic Power Systems Inc.

623
MPQ4571GQB-AEC1-P

Datasheet

MPQ 12-VFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 60V 1V 54V 1A 400kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 12-QFN (2.5x3)
MP8794GLE-P

MP8794GLE-P

IC REG BUCK ADJ 20A 21QFN

Monolithic Power Systems Inc.

480
MP8794GLE-P

Datasheet

- 21-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 16V 0.6V 5.5V 20A 600kHz, 800kHz, 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 21-QFN (3x4)
MPQ4432GL-AEC1-P

MPQ4432GL-AEC1-P

IC REG BCK 3.3/3.8/5V 2.2A 16QFN

Monolithic Power Systems Inc.

1,500
MPQ4432GL-AEC1-P

Datasheet

- 16-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.3V Buck 36V 3.3V, 3.8V, 5V - 2.2A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x4)
MPQ2189GQBE-AEC1-P

MPQ2189GQBE-AEC1-P

IC REG BUCK PROG 4A 14QFN

Monolithic Power Systems Inc.

500
MPQ2189GQBE-AEC1-P

Datasheet

- 14-VFQFN Tape & Reel (TR) Active Step-Down Positive Programmable 1 2.7V Buck 6V 0.6V 1.235V 4A 850kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 14-QFN (2.5x3)
MPQ8623GD-P

MPQ8623GD-P

IC REG BUCK ADJ 6A 14QFN

Monolithic Power Systems Inc.

360
MPQ8623GD-P

Datasheet

- 14-VFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 16V 0.9V 6V 6A 660kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 14-QFN (2x3)
MPQ8847AGQB-AEC1-Z

MPQ8847AGQB-AEC1-Z

IC REG BUCK PROG 6A 14QFN

Monolithic Power Systems Inc.

5,000
MPQ8847AGQB-AEC1-Z

Datasheet

MPQ 14-VFQFN Tape & Reel (TR) Active Step-Down Positive Programmable 1 2.7V Buck 6V 0.6V 1.235V 6A 850kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 14-QFN (2.5x3)
MPQ2180GQBE-8-AEC1-Z

MPQ2180GQBE-8-AEC1-Z

IC REG BUCK PROG 6A 14QFN

Monolithic Power Systems Inc.

5,000
MPQ2180GQBE-8-AEC1-Z

Datasheet

- 14-VFQFN Tape & Reel (TR) Active Step-Down Positive Programmable 1 2.7V Buck 6V 0.6V 1.235V 6A 850kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 14-QFN (2.5x3)
TPS54340QDDAQ1

TPS54340QDDAQ1

IC REG BCK SPLIT RAIL ADJ 8SOPWR

Texas Instruments

120
TPS54340QDDAQ1

Datasheet

Eco-Mode™ 8-PowerSOIC (0.154", 3.90mm Width) Tube Not For New Designs Step-Down Positive Adjustable 1 4.5V Buck, Split Rail 42V 0.8V 41V 3.5A 100kHz ~ 2.5MHz AEC-Q100 No Automotive -40°C ~ 150°C (TJ) Surface Mount 8-SO PowerPad
MAX17541GATB+T

MAX17541GATB+T

IC REG BUCK ADJ 500MA 10TDFN

Analog Devices Inc./Maxim Integrated

6,923
MAX17541GATB+T

Datasheet

Himalaya 10-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.9V 38.64V 500mA 600kHz - Yes - -40°C ~ 125°C (TA) Surface Mount 10-TDFN (3x2)
MPQ3431AGL-AEC1-P

MPQ3431AGL-AEC1-P

IC REG BOOST ADJ 21A 13QFN

Monolithic Power Systems Inc.

980
MPQ3431AGL-AEC1-P

Datasheet

MPQ 13-PowerVFQFN Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.8V Boost 13V 0.8V 16V 21A 450kHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 13-QFN (3x4)
MAX20459ATJA/V+

MAX20459ATJA/V+

IC REG BUCK ADJ 3A 32TQFN

Analog Devices Inc./Maxim Integrated

479
MAX20459ATJA/V+

Datasheet

- 32-WFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 3V Buck 3.6V 5V 7V 3A 410kHz, 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C Surface Mount 32-TQFN (5x5)
MP4316GRE-P

MP4316GRE-P

IC REG BUCK ADJ 6A 20QFN

Monolithic Power Systems Inc.

378
MP4316GRE-P

Datasheet

- 20-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 45V 0.815V 42.75V 6A 350kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 20-QFN (4x4)
LP87521SRNFRQ1

LP87521SRNFRQ1

IC REG BUCK ADJ 10A 26VQFN

Texas Instruments

3,000
LP87521SRNFRQ1

Datasheet

- 26-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.8V Buck 5.5V 0.6V 3.36V 10A 2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 26-VQFN-HR (4.5x4)
LP875241JRNFRQ1

LP875241JRNFRQ1

IC REG BUCK ADJ QUAD 26VQFN

Texas Instruments

2,990
LP875241JRNFRQ1

Datasheet

- 26-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 4 2.8V Buck 5.5V 0.6V 3.36V 4A, 4A, 4A, 4A 2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 26-VQFN-HR (4.5x4)
LP87523JRNFRQ1

LP87523JRNFRQ1

IC REG BUCK ADJ QUAD 26VQFN

Texas Instruments

1,653
LP87523JRNFRQ1

Datasheet

- 26-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 4 2.8V Buck 5.5V 0.6V 3.36V 4A, 4A, 8A 2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 26-VQFN-HR (4.5x4)
LM43603DSUT

LM43603DSUT

IC REG BUCK ADJ 3A 16SON

Texas Instruments

480
LM43603DSUT

Datasheet

SIMPLE SWITCHER® 16-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 36V 1V 28V 3A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 16-SON (4x5)
2D-048-015B-QFN32-C

2D-048-015B-QFN32-C

IC REG BUCK 24V/12V DL 32QFN

Helix Semiconductors

2,990
2D-048-015B-QFN32-C

Datasheet

MxC® 200 32-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 2 20V Buck 57V 24V, 12V - 650mA, 1A 95kHz - No - 0°C ~ 70°C Surface Mount 32-QFN (5x5)
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Frequently Asked Questions

Voltage Regulators - DC DC Switching Regulators Overview

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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