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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
TPS65266-1RHBT

TPS65266-1RHBT

IC REG BUCK PROG TRPL 32VQFN

Texas Instruments

3,730
TPS65266-1RHBT

Datasheet

- 32-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Programmable 3 2.7V Buck 6.5V 2.7V 6V 3A, 2A, 2A 250kHz ~ 2.4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 32-VQFN (5x5)
ISL8016IR18Z

ISL8016IR18Z

IC REG BUCK 1.8V 6A 20QFN

Renesas Electronics Corporation

740
ISL8016IR18Z

Datasheet

- 20-VFQFN Exposed Pad Tube Active Step-Down Positive Fixed 1 2.7V Buck 5.5V 1.8V - 6A 525kHz ~ 3.9MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 20-QFN (3x4)
BD90521EFV-CE2

BD90521EFV-CE2

IC REG BUCK ADJ 2A 20HTSSOP-B

Rohm Semiconductor

2,476
BD90521EFV-CE2

Datasheet

- 20-VSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.6V Buck 5.5V 0.6V 5V 2A 300kHz ~ 2.4MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount 20-HTSSOP-B
MP28259DD-LF-P

MP28259DD-LF-P

IC REG BUCK ADJ 2A 12QFN

Monolithic Power Systems Inc.

500
MP28259DD-LF-P

Datasheet

- 12-TFQFN Exposed Pad Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 4.2V Buck 20V 0.815V 13V 2A - - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-QFN (2x3)
MP9840GL-P

MP9840GL-P

IC REG BUCK ADJ 3.5A 16QFN

Monolithic Power Systems Inc.

495
MP9840GL-P

Datasheet

MP 16-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 36V 3.5A 350kHz ~ 2.5MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x4)
IR3888BMTRPBFAUMA1

IR3888BMTRPBFAUMA1

IC REG BUCK ADJ 25A 22IQFN

Infineon Technologies

4,591
IR3888BMTRPBFAUMA1

Datasheet

OptiMOS™ IPOL 22-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2V Buck 17V 0.6V 6V 25A 600kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount PG-IQFN-22-2
MPQ2123GD-AEC1-Z

MPQ2123GD-AEC1-Z

IC REG BUCK ADJ 2A 11QFN

Monolithic Power Systems Inc.

4,983
MPQ2123GD-AEC1-Z

Datasheet

- 11-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 6V 0.606V 6V 2A 300kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 11-QFN (2x3)
MPQ4418GJ-AEC1-Z

MPQ4418GJ-AEC1-Z

IC REG BUCK ADJ 600MA TSOT23-8

Monolithic Power Systems Inc.

948
MPQ4418GJ-AEC1-Z

Datasheet

- SOT-23-8 Thin, TSOT-23-8 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 36V 0.8V 32.4V 600mA 410kHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount TSOT-23-8
TPS65263RHBT

TPS65263RHBT

IC REG BCK PROG 3A/TRPL 32VQFN

Texas Instruments

2,574
TPS65263RHBT

Datasheet

- 32-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Programmable 3 4.5V Buck 18V 0.68V 6.3V 3A, 2A 600kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 32-VQFN (5x5)
BD9P105EFV-CE2

BD9P105EFV-CE2

IC REG BUCK ADJ 1A 20HTSSOP-B

Rohm Semiconductor

4,795
BD9P105EFV-CE2

Datasheet

- 20-VSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 40V 0.8V 8.5V 1A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount 20-HTSSOP-B
BD9P135EFV-CE2

BD9P135EFV-CE2

IC REG BUCK 3.3V 1A 20HTSSOP-B

Rohm Semiconductor

2,500
BD9P135EFV-CE2

Datasheet

- 20-VSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 40V 3.3V - 1A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount 20-HTSSOP-B
BD9P155MUF-CE2

BD9P155MUF-CE2

IC REG BUCK 5V 1A VQFN20FV4040

Rohm Semiconductor

2,472
BD9P155MUF-CE2

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 40V 5V - 1A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank VQFN20FV4040
BD9P135MUF-CE2

BD9P135MUF-CE2

IC REG BUCK 3.3V 1A VQFN20FV4040

Rohm Semiconductor

1,247
BD9P135MUF-CE2

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 40V 3.3V - 1A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank VQFN20FV4040
BD9P105MUF-CE2

BD9P105MUF-CE2

IC REG BUCK ADJ 1A VQFN20FV4040

Rohm Semiconductor

332
BD9P105MUF-CE2

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 40V 0.8V 8.5V 1A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank VQFN20FV4040
MPQ2179GQHE-P

MPQ2179GQHE-P

IC REG BUCK ADJ 3A 8QFN

Monolithic Power Systems Inc.

500
MPQ2179GQHE-P

Datasheet

- 8-VFDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5V 3A 2.4MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 8-QFN (2x1.5)
LM22671QMRE-ADJ/NOPB

LM22671QMRE-ADJ/NOPB

IC REG BUCK ADJ 500MA 8SOPWR

Texas Instruments

496
LM22671QMRE-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 500mA 500kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
MPQ2178GQHE-18-AEC1-P

MPQ2178GQHE-18-AEC1-P

IC REG BUCK 1.8V 2A 8QFN

Monolithic Power Systems Inc.

490
MPQ2178GQHE-18-AEC1-P

Datasheet

- 8-VFDFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.8V - 2A 2.4MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 8-QFN (2x1.5)
MPQ2178GQHE-12-AEC1-P

MPQ2178GQHE-12-AEC1-P

IC REG BUCK 1.2V 2A 8QFN

Monolithic Power Systems Inc.

400
MPQ2178GQHE-12-AEC1-P

Datasheet

- 8-VFDFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.2V - 2A 2.4MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 8-QFN (2x1.5)
MPQ2178GQHE-AEC1-P

MPQ2178GQHE-AEC1-P

IC REG BUCK ADJ 2A 8QFN

Monolithic Power Systems Inc.

390
MPQ2178GQHE-AEC1-P

Datasheet

- 8-VFDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5V 2A 2.4MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 8-QFN (2x1.5)
LM20154MH/NOPB

LM20154MH/NOPB

IC REG BUCK ADJ 4A 16HTSSOP

Texas Instruments

341
LM20154MH/NOPB

Datasheet

PowerWise® 16-PowerTSSOP (0.173", 4.40mm Width) Tube Active Step-Down Positive Adjustable 1 2.95V Buck 5.5V 0.8V 4.68V 4A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
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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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