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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
AP63203QWU-7

AP63203QWU-7

IC REG BUCK 3.3V 2A TSOT23-6

Diodes Incorporated

2,186
AP63203QWU-7

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.8V Buck 32V 3.3V - 2A 1.1MHz - Yes - -40°C ~ 125°C (TA) Surface Mount TSOT-23-6
LMR33610ADDAR

LMR33610ADDAR

IC REG BUCK ADJ 1A 8SOPWR

Texas Instruments

1,417
LMR33610ADDAR

Datasheet

- 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.8V Buck 36V 1V 24V 1A 400kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
LM2733XMFX/NOPB

LM2733XMFX/NOPB

IC REG BOOST ADJ 1A SOT23-5

Texas Instruments

5,930
LM2733XMFX/NOPB

Datasheet

- SC-74A, SOT-753 Tape & Reel (TR) Active Step-Up Positive Adjustable 1 2.7V Boost 14V 2.7V 40V (Switch) 1A (Switch) 1.6MHz - No - -40°C ~ 125°C (TJ) Surface Mount SOT-23-5
TPS54331DDAR

TPS54331DDAR

IC REG BUCK ADJ 3A 8SOPWR

Texas Instruments

3,688
TPS54331DDAR

Datasheet

Eco-Mode™ 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 28V 0.8V 25V 3A 570kHz - No - -40°C ~ 150°C (TJ) Surface Mount 8-SO PowerPad
BD9329AEFJ-E2

BD9329AEFJ-E2

IC REG BUCK ADJ 3A 8HTSOP-J

Rohm Semiconductor

2,368
BD9329AEFJ-E2

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 4.2V Buck 18V 0.9V 12.6V 3A 380kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-HTSOP-J
LM2575-5.0WU

LM2575-5.0WU

IC REG BUCK 5V 1A TO263-5

Microchip Technology

1,034
LM2575-5.0WU

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Down Positive Fixed 1 4V Buck 40V 5V - 1A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263-5
LM2575-5.0WU-TR

LM2575-5.0WU-TR

IC REG BUCK 5V 1A TO263-5

Microchip Technology

407
LM2575-5.0WU-TR

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Down Positive Fixed 1 4V Buck 40V 5V - 1A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263-5
LM2575-12WU-TR

LM2575-12WU-TR

IC REG BUCK 12V 1A TO263-5

Microchip Technology

395
LM2575-12WU-TR

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Down Positive Fixed 1 4V Buck 40V 12V - 1A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263-5
LM2576-5.0WT

LM2576-5.0WT

IC REG BUCK 5V 3A TO220-5

Microchip Technology

375
LM2576-5.0WT

Datasheet

- TO-220-5 Tube Active Step-Down Positive Fixed 1 4V Buck 40V 5V - 3A 52kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-5
LM2575-3.3WU-TR

LM2575-3.3WU-TR

IC REG BUCK 3.3V 1A TO263-5

Microchip Technology

308
LM2575-3.3WU-TR

Datasheet

- 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-263-5
LM2576WT

LM2576WT

IC REG BUCK ADJ 3A TO220-5

Microchip Technology

193
LM2576WT

Datasheet

- TO-220-5 Tube Active Step-Down Positive Adjustable 1 4V Buck 40V 1.23V 37V 3A 52kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-5
LM2623AMM/NOPB

LM2623AMM/NOPB

IC REG BOOST ADJ 2.2A 8VSSOP

Texas Instruments

19,337
LM2623AMM/NOPB

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.8V Boost 14V 1.24V 14V 2.2A (Switch) 300kHz ~ 2MHz - No - -40°C ~ 85°C (TA) Surface Mount 8-VSSOP
TPS54226PWPR

TPS54226PWPR

IC REG BUCK ADJ 2A 14HTSSOP

Texas Instruments

4,393
TPS54226PWPR

Datasheet

SWIFT™, D-CAP2™, Eco-Mode™ 14-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2V Buck 18V 0.76V 5.5V 2A 700kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 14-HTSSOP
LM2660M/NOPB

LM2660M/NOPB

IC REG CHRG PUMP INV 100MA 8SOIC

Texas Instruments

975
LM2660M/NOPB

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 5.5V -Vin, 2Vin, Vin/2 - 100mA 5kHz, 40kHz - No - -40°C ~ 85°C (TJ) Surface Mount 8-SOIC
TPS60241DGKT

TPS60241DGKT

IC REG CHARG PUMP 5V 25MA 8VSSOP

Texas Instruments

385
TPS60241DGKT

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Up/Step-Down Positive Fixed 1 2.7V Charge Pump 5.5V 5V - 25mA 160kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-VSSOP
R1245N001B-TR-FE

R1245N001B-TR-FE

IC REG BUCK ADJ 1.2A SOT23-6W

Nisshinbo Micro Devices Inc.

43,003
R1245N001B-TR-FE

Datasheet

R1245x SOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 30V 0.8V 30V 1.2A 330kHz - No - -40°C ~ 105°C (TA) Surface Mount SOT-23-6W
AP63300QWU-7

AP63300QWU-7

IC REG BUCK ADJ 3A TSOT26

Diodes Incorporated

3,695
AP63300QWU-7

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.8V Buck 32V 0.8V 32V 3A 500kHz - Yes - -40°C ~ 125°C (TA) Surface Mount TSOT-26
TPS61291DRVT

TPS61291DRVT

IC REG BOOST PROG 700MA 6WSON

Texas Instruments

29,393
TPS61291DRVT

Datasheet

- 6-WDFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Programmable 1 0.9V Boost 5V 2.5V, 3V, 3.3V - 700mA (Switch) - - Yes - -40°C ~ 85°C (TA) Surface Mount 6-WSON (2x2)
ST1S09IPUR

ST1S09IPUR

IC REG BUCK ADJ 2A 6DFN

STMicroelectronics

6,648
ST1S09IPUR

Datasheet

- 6-VDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 6V 0.8V 5.22V 2A 1.5MHz - Yes - -30°C ~ 85°C (TJ) Surface Mount 6-DFN (3x3)
LMR33620CDDAR

LMR33620CDDAR

IC REG BUCK ADJ 2A 8SOPWR

Texas Instruments

13,014
LMR33620CDDAR

Datasheet

SIMPLE SWITCHER® 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.8V Buck 36V 1V 24V 2A 2.1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
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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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