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
MP4459DQT-LF-Z

MP4459DQT-LF-Z

IC REG BUCK ADJ 1.5A 10TQFN

Monolithic Power Systems Inc.

12,634
MP4459DQT-LF-Z

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.8V Buck 36V 0.8V 30V 1.5A Up to 4MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-TQFN (3x3)
LM61480RPHR

LM61480RPHR

IC REG BUCK ADJ 8A 16VQFN

Texas Instruments

2,474
LM61480RPHR

Datasheet

- 16-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 36V 1V 34.2V 8A 400kHz, 2.2MHz, 200kHz ~ 2.2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 16-VQFN-HR (4.5x3.5)
LMR36506MSC5RPERQ1

LMR36506MSC5RPERQ1

IC REG BUCK 5V 600MA 9VQFN

Texas Instruments

1,952
LMR36506MSC5RPERQ1

Datasheet

- 9-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck 65V 5V - 600mA 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 9-VQFN-HR (2x2)
LM5576QMHX/NOPB

LM5576QMHX/NOPB

IC REG BUCK ADJ 3A 20HTSSOP

Texas Instruments

1,715
LM5576QMHX/NOPB

Datasheet

SIMPLE SWITCHER® 20-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 6V Buck 75V 1.225V 70V 3A 50kHz ~ 500kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 20-HTSSOP
LMR36506MSC3RPERQ1

LMR36506MSC3RPERQ1

IC REG BUCK 3.3V 600MA 9VQFN

Texas Instruments

953
LMR36506MSC3RPERQ1

Datasheet

- 9-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck 65V 3.3V - 600mA 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 9-VQFN-HR (2x2)
LM25184NGUR

LM25184NGUR

IC REG FLYBACK 12V 4.1A 8WSON

Texas Instruments

5,382
LM25184NGUR

Datasheet

- 8-WDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Fixed 1 4.5V Flyback 42V 12V - 4.1A 12kHz ~ 350kHz - No - -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 8-WSON (4x4)
LMQ62440APPQRJRRQ1

LMQ62440APPQRJRRQ1

IC REG BUCK ADJ 4A 14VQFN

Texas Instruments

321
LMQ62440APPQRJRRQ1

Datasheet

- 14-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 36V 1V 34.2V 4A 2.1MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 14-VQFN-HR (4x3.5)
ADM8828ARTZ-REEL7

ADM8828ARTZ-REEL7

IC REG CHARGE PUMP 25MA SOT23-6

Analog Devices Inc.

6,041
ADM8828ARTZ-REEL7

Datasheet

- SOT-23-6 Tape & Reel (TR) Active Ratiometric Negative Fixed 1 1.5V Charge Pump 5.5V -Vin - 25mA 120kHz - No - -40°C ~ 85°C (TA) Surface Mount SOT-23-6
MP4575GF-Z

MP4575GF-Z

IC REG BUCK ADJ 5A 20TSSOP

Monolithic Power Systems Inc.

4,970
MP4575GF-Z

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 55V 1V 49.5V 5A - - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
TPS62873Y1QWRXSRQ1

TPS62873Y1QWRXSRQ1

IC REG BUCK ADJ 15A 16VQFN

Texas Instruments

672
TPS62873Y1QWRXSRQ1

Datasheet

- 16-TFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 6V 0.4V 3.35V 15A 1.5MHz, 2.25MHz, 2.5MHz, 3MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 16-VQFN (2.55x3.55)
LM5158QRTERQ1

LM5158QRTERQ1

IC REG BOOST FLYBACK ADJ 16WQFN

Texas Instruments

6,586
LM5158QRTERQ1

Datasheet

- 16-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 1.5V Boost, Flyback, SEPIC 60V 1.5V 83V 3.26A (Switch) 100kHz ~ 2.2MHz AEC-Q100 No Automotive -40°C ~ 125°C (TA) Surface Mount 16-WQFN (3x3)
LM22672MRE-ADJ/NOPB

LM22672MRE-ADJ/NOPB

IC REG BUCK ADJ 1A 8SOPWR

Texas Instruments

758
LM22672MRE-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 1A 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
MPQ9843GLE-AEC1-Z

MPQ9843GLE-AEC1-Z

IC REG BUCK ADJ 3A 16QFN

Monolithic Power Systems Inc.

5,231
MPQ9843GLE-AEC1-Z

Datasheet

MPQ 16-VQFN 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, Wettable Flank 16-QFN (3x4)
TPS65400RGZR

TPS65400RGZR

IC REG BCK ADJ 4A/2A QUAD 48VQFN

Texas Instruments

2,384
TPS65400RGZR

Datasheet

- 48-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 4 4.5V Buck 18V 0.6V 16.2V 4A, 2A 275kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 48-VQFN (7x7)
MAX20402AFLA/VY+

MAX20402AFLA/VY+

IC REG BUCK 5V 2.5A 15FC2QFN

Analog Devices Inc./Maxim Integrated

3,563
MAX20402AFLA/VY+

Datasheet

- 15-WFQFN Tray Active Step-Down Positive Fixed 1 3V Buck 36V 5V - 2.5A 2.1MHz - Yes - -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 15-FC2QFN (3x3)
ADM8829ARTZ-REEL7

ADM8829ARTZ-REEL7

IC REG CHARGE PUMP 25MA SOT23-6

Analog Devices Inc.

4,037
ADM8829ARTZ-REEL7

Datasheet

- SOT-23-6 Tape & Reel (TR) Active Ratiometric Negative Fixed 1 1.5V Charge Pump 5.5V -Vin - 25mA 120kHz - No - -40°C ~ 85°C (TA) Surface Mount SOT-23-6
SIC477ED-T1-GE3

SIC477ED-T1-GE3

IC REG BCK ADJ POWERPAK MLP55-27

Vishay Siliconix

4,175
SIC477ED-T1-GE3

Datasheet

microBUCK® PowerPAK® MLP55-27 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 55V 0.8V 24V 8A 100kHz ~ 2MHz - Yes - -40°C ~ 105°C (TA) Surface Mount PowerPAK® MLP55-27
TDA387250000AUMA1

TDA387250000AUMA1

IC REG BUCK ADJ 25A IQFN-36

Infineon Technologies

5,721
TDA387250000AUMA1

Datasheet

- 36-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 17V 0.25V 5.12V 25A 400kHz ~ 2MHz - Yes Automotive -40°C ~ 125°C (TJ) Surface Mount PG-IQFN-36-3
MAX15462CATA+T

MAX15462CATA+T

IC REG BUCK ADJ 300MA 8TDFN

Analog Devices Inc./Maxim Integrated

7,014
MAX15462CATA+T

Datasheet

Himalaya 8-WFDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.9V 37.37V 300mA 500kHz - Yes - -40°C ~ 125°C (TA) Surface Mount 8-TDFN (2x2)
MAX15462AATA+T

MAX15462AATA+T

IC REG BUCK 3.3V 300MA 8TDFN

Analog Devices Inc./Maxim Integrated

3,966
MAX15462AATA+T

Datasheet

Himalaya 8-WFDFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 4.5V Buck 42V 3.3V - 300mA 500kHz - Yes - -40°C ~ 125°C (TA) Surface Mount 8-TDFN (2x2)
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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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