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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
LM5009MMX/NOPB

LM5009MMX/NOPB

IC REG BUCK ADJ 150MA 8VSSOP

Texas Instruments

8,947
LM5009MMX/NOPB

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 9.5V Buck 95V 2.5V 85V 150mA - - No - -40°C ~ 125°C (TJ) Surface Mount 8-VSSOP
TPS65261-1RHBR

TPS65261-1RHBR

IC REG BCK ADJ 3A/2A TRPL 32VQFN

Texas Instruments

7,031
TPS65261-1RHBR

Datasheet

- 32-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 3 4.5V Buck 18V 0.6V 18V 3A, 2A 250kHz ~ 2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 32-VQFN (5x5)
TPS65261RHBR

TPS65261RHBR

IC REG BCK ADJ 3A/2A TRPL 32VQFN

Texas Instruments

5,649
TPS65261RHBR

Datasheet

- 32-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 3 4.5V Buck 18V 0.6V 18V 3A, 2A 250kHz ~ 2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 32-VQFN (5x5)
LM2841XMKX-ADJL/NOPB

LM2841XMKX-ADJL/NOPB

IC REG BUCK ADJ 300MA SOT23

Texas Instruments

3,918
LM2841XMKX-ADJL/NOPB

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.765V 34V 300mA 550kHz - No - -40°C ~ 125°C (TJ) Surface Mount SOT-23-THIN
BD9C401EFJ-E2

BD9C401EFJ-E2

IC REG BUCK ADJ 4A 8HTSOP-J

Rohm Semiconductor

3,121
BD9C401EFJ-E2

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 18V 0.8V 12.6V 4A 500kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-HTSOP-J
TPS5410DR

TPS5410DR

IC REG BUCK ADJ 1A 8SOIC

Texas Instruments

195
TPS5410DR

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 5.5V Buck 36V 1.221V 31.32V 1A 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
MP2384CGG-Z

MP2384CGG-Z

IC REG BUCK ADJ 4A 11QFN

Monolithic Power Systems Inc.

8,533
MP2384CGG-Z

Datasheet

- 11-VFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 24V 0.6V 13V 4A 700kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 11-QFN (2x2)
L6981N50DR

L6981N50DR

IC REG BUCK 5V 1.5A 8SO

STMicroelectronics

3,948
L6981N50DR

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 38V 5V - 1.5A 400kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 8-SO
L6981N33DR

L6981N33DR

IC REG BUCK 3.3V 1.5A 8SO

STMicroelectronics

3,501
L6981N33DR

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 38V 3.3V - 1.5A 400kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 8-SO
MP3437GJ-Z

MP3437GJ-Z

IC REG BOOST ADJ TSOT23-8

Monolithic Power Systems Inc.

1,762
MP3437GJ-Z

Datasheet

MP SOT-23-8 Thin, TSOT-23-8 Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.8V Boost 16V 0.8V 16V - 600kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-8
L6981NDR

L6981NDR

IC REG BUCK ADJ 1.5A 8SO

STMicroelectronics

1,615
L6981NDR

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 38V 0.85V 38V 1.5A 400kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 8-SO
L6981C33DR

L6981C33DR

IC REG BUCK 3.3V 1.5A 8SO

STMicroelectronics

1,477
L6981C33DR

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 38V 3.3V - 1.5A 400kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 8-SO
L6981CDR

L6981CDR

IC REG BUCK ADJ 1.5A 8SO

STMicroelectronics

1,457
L6981CDR

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 38V 0.85V 38V 1.5A 400kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 8-SO
LM2574N-5G

LM2574N-5G

IC REG BUCK BOOST 5V 500MA 8PDIP

onsemi

402
LM2574N-5G

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Fixed 1 4.75V Buck, Boost, Buck-Boost 40V 5V - 500mA 52kHz - No - -40°C ~ 125°C (TJ) Through Hole 8-PDIP
LM2574N-ADJG

LM2574N-ADJG

IC REG BUCK BST ADJ 500MA 8PDIP

onsemi

261
LM2574N-ADJG

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 4.75V Buck, Boost, Buck-Boost 40V 1.23V 37V 500mA 52kHz - No - -40°C ~ 125°C (TJ) Through Hole 8-PDIP
TPS62111RSAT

TPS62111RSAT

IC REG BUCK 3.3V 1.5A 16QFN

Texas Instruments

7,122
TPS62111RSAT

Datasheet

- 16-VQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.1V Buck 17V 3.3V - 1.5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (4x4)
TPS63802DLAT

TPS63802DLAT

IC REG BUCK BOOST ADJ 2A 10VSON

Texas Instruments

4,158
TPS63802DLAT

Datasheet

- 10-PowerVFDFN Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 1.3V Buck-Boost 5.5V 1.8V 5.2V 2A 2.1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-VSON-HR (3x2)
LMR70503TM/NOPB

LMR70503TM/NOPB

IC REG BUCK BST ADJ 270MA 8DSBGA

Texas Instruments

1,732
LMR70503TM/NOPB

Datasheet

SIMPLE SWITCHER® 8-WFBGA, DSBGA Tape & Reel (TR) Active Step-Up/Step-Down Negative Adjustable 1 2.8V Buck-Boost 5.5V -0.9V -5.5V 270mA (Switch) 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-DSBGA
TPS629210DRLR-ET

TPS629210DRLR-ET

IC REG BUCK ADJ 1A SOT583

Texas Instruments

1,682
TPS629210DRLR-ET

Datasheet

- SOT-583 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 17V 0.4V 5.5V 1A 1MHz, 2.5MHz - Yes - -55°C ~ 150°C (TJ) Surface Mount SOT-583
TPS62112RSAT

TPS62112RSAT

IC REG BUCK 5V 1.5A 16QFN

Texas Instruments

670
TPS62112RSAT

Datasheet

- 16-VQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.1V Buck 17V 5V - 1.5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (4x4)
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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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