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
LM2734XMKX/NOPB

LM2734XMKX/NOPB

IC REG BUCK ADJ 1A SOT23

Texas Instruments

2,779
LM2734XMKX/NOPB

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 20V 0.8V 18V 1A 1.6MHz - No - -40°C ~ 125°C (TJ) Surface Mount SOT-23-THIN
LM2596DSADJR4G

LM2596DSADJR4G

IC REG BUCK BOOST ADJ 3A D2PAK-5

onsemi

2,020
LM2596DSADJR4G

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 4.5V Buck, Boost, Buck-Boost 40V 1.23V 37V 3A 150kHz - No - -40°C ~ 125°C (TJ) Surface Mount D2PAK-5
LM2576T-ADJG

LM2576T-ADJG

IC REG BUCK ADJ 3A TO220-5

onsemi

1,631
LM2576T-ADJG

Datasheet

- TO-220-5 Tube Active Step-Down Positive or Negative Adjustable 1 7V Buck 40V 1.23V 37V 3A 52kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-5
SIC472ED-T1-GE3

SIC472ED-T1-GE3

IC REG BCK ADJ POWERPAK MLP55-27

Vishay Siliconix

3,800
SIC472ED-T1-GE3

Datasheet

microBUCK® PowerPAK® MLP55-27 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 55V 0.8V 50.6V 8A 20kHz ~ 2MHz - Yes - -40°C ~ 105°C (TA) Surface Mount PowerPAK® MLP55-27
A4490EESTR-T

A4490EESTR-T

IC REG BUCK ADJ TRPL 20QFN

Allegro MicroSystems

2,632
A4490EESTR-T

Datasheet

- 20-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 3 4.5V Buck 34V 0.8V 30.6V - 550kHz - No - -40°C ~ 85°C (TA) Surface Mount 20-QFN-EP (4x4)
TS2596CM550 RNG

TS2596CM550 RNG

IC REG BUCK 5V 3A TO263-5

Taiwan Semiconductor Corporation

5,519
TS2596CM550 RNG

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Down Positive Fixed 1 4.5V Buck 40V 5V - 3A 150kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263-5
MAX17291ANT+T

MAX17291ANT+T

IC REG BOOST ADJ 1A 6WLP

Analog Devices Inc./Maxim Integrated

6,885
MAX17291ANT+T

Datasheet

- 6-XFBGA, WLBGA Tape & Reel (TR) Active Step-Up Positive Adjustable 1 1.8V Boost 5.5V 5.5V 20V 1A 1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 6-WLP (1.27x0.87)
ISL9120IRTAZ-T7A

ISL9120IRTAZ-T7A

IC REG BUCK BST ADJ 800MA 12TQFN

Renesas Electronics Corporation

4,049
ISL9120IRTAZ-T7A

Datasheet

- 12-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 1V 5.2V 800mA - - No - -40°C ~ 85°C (TA) Surface Mount 12-TQFN (3x3)
LM22674MR-ADJ/NOPB

LM22674MR-ADJ/NOPB

IC REG BUCK ADJ 500MA 8SOPWR

Texas Instruments

9,887
LM22674MR-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® 8-PowerSOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4.5V Buck 42V 1.285V 37V 500mA 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
AOZ1212AI

AOZ1212AI

IC REG BUCK ADJ 3A 8SOIC

Alpha & Omega Semiconductor Inc.

9,184
AOZ1212AI

Datasheet

EZBuck™ 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 4.5V Buck 27V 0.8V 22.95V 3A 370kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LM22674MRE-5.0/NOPB

LM22674MRE-5.0/NOPB

IC REG BUCK 5V 500MA 8SOPWR

Texas Instruments

4,855
LM22674MRE-5.0/NOPB

Datasheet

SIMPLE SWITCHER® 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 4.5V Buck 42V 5V - 500mA 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
LM20242MHX/NOPB

LM20242MHX/NOPB

IC REG BUCK ADJ 2A 20HTSSOP

Texas Instruments

3,465
LM20242MHX/NOPB

Datasheet

PowerWise® 20-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 36V 0.8V 32.4V 2A 100kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-HTSSOP
TPS54340BDDAR

TPS54340BDDAR

IC REG BUCK ADJ 3.5A 8SOPWR

Texas Instruments

3,321
TPS54340BDDAR

Datasheet

Eco-Mode™ 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.8V 41.1V 3.5A 100kHz ~ 2.5MHz - No - -40°C ~ 150°C (TJ) Surface Mount 8-SO PowerPad
TPS54260DGQR

TPS54260DGQR

IC REG BUCK ADJ 2.5A 10HVSSOP

Texas Instruments

3,155
TPS54260DGQR

Datasheet

Eco-Mode™ 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 60V 0.8V 60V 2.5A 100kHz ~ 2.5MHz - No - -40°C ~ 150°C (TJ) Surface Mount 10-HVSSOP
LM2842XMK-ADJL/NOPB

LM2842XMK-ADJL/NOPB

IC REG BUCK ADJ 600MA TSOT23-6

Texas Instruments

2,615
LM2842XMK-ADJL/NOPB

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.765V 34V 600mA 550kHz - No - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-6
LM2842YMK-ADJL/NOPB

LM2842YMK-ADJL/NOPB

IC REG BUCK ADJ 600MA TSOT23-6

Texas Instruments

1,515
LM2842YMK-ADJL/NOPB

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.765V 34V 600mA 1.25MHz - No - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-6
LMR16030SDDAR

LMR16030SDDAR

IC REG BUCK ADJ 3A 8SOPWR

Texas Instruments

499
LMR16030SDDAR

Datasheet

SIMPLE SWITCHER® 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.3V Buck 60V 0.8V 50V 3A 200kHz ~ 2.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
LM5574QMTX/NOPB

LM5574QMTX/NOPB

IC REG BUCK ADJ 500MA 16TSSOP

Texas Instruments

6,033
LM5574QMTX/NOPB

Datasheet

SIMPLE SWITCHER® 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 6V Buck 75V 1.225V 70V 500mA 50kHz ~ 500kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP
SIC479ED-T1-GE3

SIC479ED-T1-GE3

IC REG BCK ADJ POWERPAK MLP55-27

Vishay Siliconix

4,280
SIC479ED-T1-GE3

Datasheet

microBUCK® PowerPAK® MLP55-27 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 55V 0.8V 24V 3A 100kHz ~ 2MHz - Yes - -40°C ~ 105°C (TA) Surface Mount PowerPAK® MLP55-27
MIC261201YJL-TR

MIC261201YJL-TR

IC REG BUCK ADJ 12A 28QFN

Microchip Technology

1,166
MIC261201YJL-TR

Datasheet

Hyper Speed Control®, SuperSwitcher II™ 28-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 28V 0.8V 5.5V 12A 600kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (5x6)
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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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