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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
BD9E101FJ-LBGH2

BD9E101FJ-LBGH2

IC REG BUCK ADJ 1A 8SOPJ

Rohm Semiconductor

160
BD9E101FJ-LBGH2

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7V Buck 36V 1V 25.2V 1A 570kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 8-SOP-J
TPS6734ID

TPS6734ID

IC REG BOOST 12.12V 150MA 8SOIC

Texas Instruments

1,516
TPS6734ID

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Bulk Active Step-Up Positive Fixed 1 2.7V Boost 12V 12.12V - 150mA 170kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LM2734XQMKE/NOPB

LM2734XQMKE/NOPB

IC REG BUCK ADJ 1A TSOT23-6

Texas Instruments

691
LM2734XQMKE/NOPB

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 20V 0.8V 18V 1A 1.6MHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount TSOT-23-6
LM2734XQMK/NOPB

LM2734XQMK/NOPB

IC REG BUCK ADJ 1A SOT23

Texas Instruments

660
LM2734XQMK/NOPB

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 20V 0.8V 18V 1A 1.6MHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount SOT-23-THIN
MPQ9842GLE-AEC1-P

MPQ9842GLE-AEC1-P

IC REG BUCK ADJ 2A 16QFN

Monolithic Power Systems Inc.

1,377
MPQ9842GLE-AEC1-P

Datasheet

MPQ 16-VQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 36V 2A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 16-QFN (3x4)
TPS53314RGFT

TPS53314RGFT

IC REG BUCK ADJ 6A 40VQFN

Texas Instruments

8,000
TPS53314RGFT

Datasheet

D-CAP™, Eco-Mode™ 40-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 15V 0.6V 5.5V 6A 250kHz ~ 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 40-VQFN (7x5)
LM2676SDX-5.0/NOPB

LM2676SDX-5.0/NOPB

IC REG BUCK 5V 3A 14VSON

Texas Instruments

7,952
LM2676SDX-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)
LM2676SD-12/NOPB

LM2676SD-12/NOPB

IC REG BUCK 12V 3A 14VSON

Texas Instruments

628
LM2676SD-12/NOPB

Datasheet

SIMPLE SWITCHER® 14-VDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 8V Buck 40V 12V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 14-VSON (5x6)
LM2673SX-12/NOPB

LM2673SX-12/NOPB

IC REG BUCK 12V 3A TO263

Texas Instruments

2,917
LM2673SX-12/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 12V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
TPS55340QRTETQ1

TPS55340QRTETQ1

IC REG BOOST ADJ 5.25A 16WQFN

Texas Instruments

717
TPS55340QRTETQ1

Datasheet

- 16-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive, Isolation Capable Adjustable 1 2.9V Boost 38V 2.9V 38V 5.25A (Switch) 94kHz ~ 2.55MHz AEC-Q100 No Automotive -40°C ~ 125°C (TA) Surface Mount 16-WQFN (3x3)
LM2673SD-12/NOPB

LM2673SD-12/NOPB

IC REG BUCK 12V 3A 14VSON

Texas Instruments

506
LM2673SD-12/NOPB

Datasheet

SIMPLE SWITCHER® 14-VDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 8V Buck 40V 12V - 3A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 14-VSON (5x6)
MPQ4423AGQ-AEC1-Z

MPQ4423AGQ-AEC1-Z

IC REG BUCK ADJ 3A 8QFN

Monolithic Power Systems Inc.

28,901
MPQ4423AGQ-AEC1-Z

Datasheet

- 8-VDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 36V 0.8V 32.4V 3A 410kHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 8-QFN (3x3)
MAX17632CATE+T

MAX17632CATE+T

IC REG BUCK ADJ 2A 16TQFN

Analog Devices Inc./Maxim Integrated

4,305
MAX17632CATE+T

Datasheet

- 16-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 36V 0.9V 32.4V 2A 400kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 16-TQFN (3x3)
MPQ4420HGJ-P

MPQ4420HGJ-P

IC REG BUCK ADJ 2A TSOT23-8

Monolithic Power Systems Inc.

1,785
MPQ4420HGJ-P

Datasheet

- SOT-23-8 Thin, TSOT-23-8 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 36V 0.8V 32.4V 2A 410kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-8
MPQ4423HGQ-AEC1-Z

MPQ4423HGQ-AEC1-Z

IC REG BUCK ADJ 3A 8QFN

Monolithic Power Systems Inc.

1,439
MPQ4423HGQ-AEC1-Z

Datasheet

- 8-VDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 36V 0.8V 32.4V 3A 410kHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 8-QFN (3x3)
TPS54628DDA

TPS54628DDA

IC REG BUCK ADJ 6A 8SOPWR

Texas Instruments

289
TPS54628DDA

Datasheet

D-CAP2™, Eco-Mode™ 8-PowerSOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4.5V Buck 18V 0.765V 5.5V 6A 650kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-SO PowerPad
MP2109DQ-LF-Z

MP2109DQ-LF-Z

IC REG BUCK ADJ 800MA DL 10QFN

Monolithic Power Systems Inc.

10,729
MP2109DQ-LF-Z

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 2 2.5V Buck 6V 0.6V 6V 800mA 1.24MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-QFN (3x3)
MAX17550AUB+

MAX17550AUB+

IC REG BUCK ADJ 25MA 10UMAX

Analog Devices Inc./Maxim Integrated

1,108
MAX17550AUB+

Datasheet

Himalaya 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 4V Buck 60V 0.8V 54V 25mA 100kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-uMAX/uSOP
LM43600AQPWPTQ1

LM43600AQPWPTQ1

IC REG BUCK ADJ 500MA 16HTSSOP

Texas Instruments

488
LM43600AQPWPTQ1

Datasheet

SIMPLE SWITCHER® 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 36V 1V 28V 500mA 200kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
TPS54622RHLT

TPS54622RHLT

IC REG BUCK ADJ 6A 14VQFN

Texas Instruments

2,166
TPS54622RHLT

Datasheet

SWIFT™ 14-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 17V 0.6V 15V 6A 200kHz ~ 1.6MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 14-VQFN (3.5x3.5)
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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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