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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
MP9943GQ-P

MP9943GQ-P

IC REG BUCK ADJ 3A 8QFN

Monolithic Power Systems Inc.

1,157
MP9943GQ-P

Datasheet

- 8-VDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 36V 0.8V 28.5V 3A 410kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-QFN (3x3)
TPS63020QDSJRQ1

TPS63020QDSJRQ1

IC REG BUCK BST ADJ 3.5A 14VSON

Texas Instruments

6,729
TPS63020QDSJRQ1

Datasheet

- 14-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 1.2V 5.5V 3.5A (Switch) 2.4MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 14-VSON (4x3)
LMR36506RFRPER

LMR36506RFRPER

IC REG BUCK ADJ 600MA 9VQFN

Texas Instruments

5,975
LMR36506RFRPER

Datasheet

- 9-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 65V 1V 65V 600mA 200kHz ~ 2.2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 9-VQFN-HR (2x2)
RT6154AGQW

RT6154AGQW

IC REG BUCK BOOST ADJ 4A 14WDFN

Richtek USA Inc.

2,615
RT6154AGQW

Datasheet

- 14-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 1.8V 5.5V 4A 2.4MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 14-WDFN (4x3)
LMR36506R5RPER

LMR36506R5RPER

IC REG BUCK 5V 600MA 9VQFN

Texas Instruments

2,575
LMR36506R5RPER

Datasheet

- 9-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck 65V 5V - 600mA 200kHz ~ 2.2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 9-VQFN-HR (2x2)
LMR36506RRPER

LMR36506RRPER

IC REG BUCK ADJ 600MA 9VQFN

Texas Instruments

2,117
LMR36506RRPER

Datasheet

- 9-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 65V 1V 65V 600mA 200kHz ~ 2.2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 9-VQFN-HR (2x2)
TL2575HV-05QKTTRQ1

TL2575HV-05QKTTRQ1

IC REG BUCK 5V 1A TO263

Texas Instruments

1,267
TL2575HV-05QKTTRQ1

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Down Positive Fixed 1 4.75V Buck 60V 5V - 1A 52kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
LM63635DQPWPRQ1

LM63635DQPWPRQ1

IC REG BUCK ADJ 3.25A 16HTSSOP

Texas Instruments

2,413
LM63635DQPWPRQ1

Datasheet

- 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 32V 1V 20V 3.25A 250kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C Surface Mount 16-HTSSOP
MAX77540AAWV+T

MAX77540AAWV+T

IC REG BUCK PROG 3A/3A DL 30WLP

Analog Devices Inc./Maxim Integrated

3,208
MAX77540AAWV+T

Datasheet

- 30-WFBGA, WLBGA Tape & Reel (TR) Active Step-Down Positive Programmable 2 4V Buck 16V 0.5V 5.2V 3A, 3A 500kHz, 1MHz, 1.6MHz - No - -40°C ~ 125°C (TJ) Surface Mount 30-WLP (2.51x2.31)
MAX17640AATA+T

MAX17640AATA+T

IC REG BUCK 3.3V 400MA 8TDFN

Analog Devices Inc./Maxim Integrated

1,820
MAX17640AATA+T

Datasheet

Himalaya 8-WFDFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 4.5V Buck 60V 3.3V - 400mA 500kHz - Yes - -40°C ~ 125°C (TA) Surface Mount 8-TDFN (2x2)
TPS54340BQDDAQ1

TPS54340BQDDAQ1

IC REG BUCK ADJ 3.5A 8SOPWR

Texas Instruments

5,257
TPS54340BQDDAQ1

Datasheet

Eco-Mode™ 8-PowerSOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.8V 41.1V 3.5A 100kHz ~ 2.5MHz AEC-Q100 No Automotive -40°C ~ 150°C (TJ) Surface Mount 8-SO PowerPad
LM2575SX-3.3/NOPB

LM2575SX-3.3/NOPB

IC REG BUCK 3.3V 1A TO263

Texas Instruments

450
LM2575SX-3.3/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Down Positive Fixed 1 4V Buck 40V 3.3V - 1A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
BD7F100EFJ-LBE2

BD7F100EFJ-LBE2

IC REG FLYBACK ADJ 1A 8HTSOP-J

Rohm Semiconductor

7,669
BD7F100EFJ-LBE2

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive, Isolation Capable Adjustable 1 3V Flyback 40V 0.78V 50V (Switch) 1A (Switch) 400kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-HTSOP-J
LM2651MTCX-3.3/NOPB

LM2651MTCX-3.3/NOPB

IC REG BUCK 3.3V 1.5A 16TSSOP

Texas Instruments

6,591
LM2651MTCX-3.3/NOPB

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 4V Buck 14V 3.3V - 1.5A 300kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP
TPIC74100QPWPRQ1

TPIC74100QPWPRQ1

IC REG BUCK BOOST 5V 1A 20HTSSOP

Texas Instruments

2,974
TPIC74100QPWPRQ1

Datasheet

- 20-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Up/Step-Down Positive Fixed 1 1.5V Buck-Boost 40V 5V - 1A 440kHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount 20-HTSSOP
TPS630250RNCT

TPS630250RNCT

IC REG BCK BST ADJ 2A/4A 14VQFN

Texas Instruments

15,222
TPS630250RNCT

Datasheet

- 14-PowerVFQFN Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.3V Buck-Boost 5.5V 2.3V 3.6V 2A, 4A 2.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 14-VQFN-HR (3x2.5)
TPS54160ADGQ

TPS54160ADGQ

IC REG BUCK ADJ 1.5A 10HVSSOP

Texas Instruments

1,343
TPS54160ADGQ

Datasheet

Eco-Mode™ 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 3.5V Buck 60V 0.8V 58V 1.5A 100kHz ~ 2.5MHz - No - -40°C ~ 150°C (TJ) Surface Mount 10-HVSSOP
LMR23625CDDA

LMR23625CDDA

IC REG BUCK ADJ 2.5A 8SOPWR

Texas Instruments

1,141
LMR23625CDDA

Datasheet

SIMPLE SWITCHER® 8-PowerSOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4.5V Buck 36V 1V 28V 2.5A 2.1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
TPS5420D

TPS5420D

IC REG BUCK ADJ 2A 8SOIC

Texas Instruments

713
TPS5420D

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 5.5V Buck 36V 1.22V 31V 2A 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
TPS54160DGQ

TPS54160DGQ

IC REG BUCK ADJ 1.5A 10HVSSOP

Texas Instruments

529
TPS54160DGQ

Datasheet

Eco-Mode™ 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 3.5V Buck 60V 0.8V 58V 1.5A 100kHz ~ 2.5MHz - No - -40°C ~ 150°C (TJ) Surface Mount 10-HVSSOP
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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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