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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
MPQ4418GJ-AEC1-P

MPQ4418GJ-AEC1-P

IC REG BUCK ADJ 600MA TSOT23-8

Monolithic Power Systems Inc.

494
MPQ4418GJ-AEC1-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 600mA 410kHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount TSOT-23-8
MPQ2179GQHE-AEC1-P

MPQ2179GQHE-AEC1-P

IC REG BUCK ADJ 3A 8QFN

Monolithic Power Systems Inc.

443
MPQ2179GQHE-AEC1-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)
MPQ9843GL-P

MPQ9843GL-P

IC REG BUCK ADJ 3A 16QFN

Monolithic Power Systems Inc.

418
MPQ9843GL-P

Datasheet

MPQ 16-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 36V 3A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x4)
IR3447AMTRPBFAUMA2

IR3447AMTRPBFAUMA2

IC REG BUCK ADJ 25A VIQFN-29

Infineon Technologies

3,995
IR3447AMTRPBFAUMA2

Datasheet

OptiMOS™ IPOL 29-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2V Buck 17V 0.6V 7.5V 25A 600kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount PG-VIQFN-29
TPS6734IP

TPS6734IP

IC REG BOOST 12.12V 150MA 8PDIP

Texas Instruments

3,220
TPS6734IP

Datasheet

- 8-DIP (0.300", 7.62mm) Bulk Active Step-Up Positive Fixed 1 2.7V Boost 12V 12.12V - 150mA 170kHz - No - -40°C ~ 85°C (TA) Through Hole 8-PDIP
BD9P255MUF-CE2

BD9P255MUF-CE2

IC REG BUCK 5V 2A VQFN20FV4040

Rohm Semiconductor

2,114
BD9P255MUF-CE2

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 40V 5V - 2A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank VQFN20FV4040
LM43600QPWPRQ1

LM43600QPWPRQ1

IC REG BUCK ADJ 500MA 16HTSSOP

Texas Instruments

3,997
LM43600QPWPRQ1

Datasheet

SIMPLE SWITCHER® 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs 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
MPQ4323MGQCE-AEC1-P

MPQ4323MGQCE-AEC1-P

IC REG BUCK ADJ 3A 12QFN

Monolithic Power Systems Inc.

500
MPQ4323MGQCE-AEC1-P

Datasheet

- 12-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 34.2V 3A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 12-QFN (3.5x3.5)
MPQ9841GL-AEC1-Z

MPQ9841GL-AEC1-Z

IC REG BUCK ADJ 1A 16QFN

Monolithic Power Systems Inc.

4,746
MPQ9841GL-AEC1-Z

Datasheet

MPQ 16-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 36V 1A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x4)
MP2130DG-LF-Z

MP2130DG-LF-Z

IC REG BUCK ADJ 3.5A 12QFN

Monolithic Power Systems Inc.

905
MP2130DG-LF-Z

Datasheet

- 12-PowerVFQFN Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 2.7V Buck 6V 0.6V 5.5V 3.5A 1.2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 12-QFN (2x2)
MP5403BGQBU-P

MP5403BGQBU-P

IC REG BUCK ADJ/0.6V DL 20UTQFN

Monolithic Power Systems Inc.

396
MP5403BGQBU-P

Datasheet

- 20-UFQFN Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable (Fixed) 2 2.7V Buck 6V 0.6V 6V 3.5A, 2.5A 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-UTQFN (2.5x3)
LTC3303CRUCM#TRPBF

LTC3303CRUCM#TRPBF

IC REG BUCK ADJ 4A 12TQFN

Analog Devices Inc.

3,776
LTC3303CRUCM#TRPBF

Datasheet

- 12-PowerWFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.5V 3.65V 4A 6MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 12-TQFN (2x2)
MPQ9840GLE-AEC1-Z

MPQ9840GLE-AEC1-Z

IC REG BUCK ADJ 3.5A 16QFN

Monolithic Power Systems Inc.

3,700
MPQ9840GLE-AEC1-Z

Datasheet

MPQ 16-VQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 36V 3.5A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 16-QFN (3x4)
LTC3303ARUCM#TRPBF

LTC3303ARUCM#TRPBF

IC REG BUCK ADJ 4A 12TQFN

Analog Devices Inc.

1,768
LTC3303ARUCM#TRPBF

Datasheet

- 12-PowerWFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.5V 3.65V 4A 2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount 12-TQFN (2x2)
MPQ9840GL-P

MPQ9840GL-P

IC REG BUCK ADJ 3.5A 16QFN

Monolithic Power Systems Inc.

404
MPQ9840GL-P

Datasheet

MPQ 16-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 36V 3.5A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x4)
MP3430GQ-P

MP3430GQ-P

IC REG BOOST ADJ 600MA 16QFN

Monolithic Power Systems Inc.

292
MP3430GQ-P

Datasheet

- 16-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Adjustable 1 2.7V Boost 5.5V 2.7V 90V 600mA (Switch) 1.3MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x3)
LTC3548IDD#PBF

LTC3548IDD#PBF

IC REG BUCK BOOST ADJ DL 10DFN

Analog Devices Inc.

2,625
LTC3548IDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down, Step-Up/Step-Down Positive Adjustable 2 2.5V Buck, Buck-Boost 5.5V 0.6V 5V 400mA, 800mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
TPS54627DDA

TPS54627DDA

IC REG BUCK ADJ 6A 8SOPWR

Texas Instruments

1,159
TPS54627DDA

Datasheet

D-CAP2™ 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
MPQ9842GLE-5-AEC1-P

MPQ9842GLE-5-AEC1-P

IC REG BUCK 5V 2A 16QFN

Monolithic Power Systems Inc.

1,292
MPQ9842GLE-5-AEC1-P

Datasheet

MPQ 16-VQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.3V Buck 36V 5V - 2A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 16-QFN (3x4)
MPQ9842GLE-33-AEC1-P

MPQ9842GLE-33-AEC1-P

IC REG BUCK 3.3V 2A 16QFN

Monolithic Power Systems Inc.

1,000
MPQ9842GLE-33-AEC1-P

Datasheet

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