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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
LM25575MH/NOPB

LM25575MH/NOPB

IC REG BUCK ADJ 1.5A 16HTSSOP

Texas Instruments

3,997
LM25575MH/NOPB

Datasheet

SIMPLE SWITCHER® 16-PowerTSSOP (0.173", 4.40mm Width) Tube Active Step-Down Positive Adjustable 1 6V Buck 42V 1.225V 40V 1.5A 50kHz ~ 1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
MPQ4573GQBE-AEC1-Z

MPQ4573GQBE-AEC1-Z

IC REG BUCK ADJ 2.5A 12QFN

Monolithic Power Systems Inc.

2,200
MPQ4573GQBE-AEC1-Z

Datasheet

- 12-VFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 60V 1V 54V 2.5A Up to 2.2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 12-QFN (2.5x3)
ICL7660CSA+

ICL7660CSA+

IC REG CHARGE PUMP 20MA 8SOIC

Analog Devices Inc./Maxim Integrated

1,903
ICL7660CSA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 10V -Vin, nVin, Vin/2 - 20mA 10kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SOIC
LM2677SX-5.0/NOPB

LM2677SX-5.0/NOPB

IC REG BUCK 5V 5A TO263

Texas Instruments

1,182
LM2677SX-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tape & Reel (TR) Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 5A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LM2677SX-ADJ/NOPB

LM2677SX-ADJ/NOPB

IC REG BUCK ADJ 5A TO263

Texas Instruments

1,580
LM2677SX-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tape & Reel (TR) Active Step-Down Positive Adjustable 1 8V Buck 40V 1.21V 37V 5A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LT8334RDE#TRPBF

LT8334RDE#TRPBF

IC REG BST SEPIC ADJ 5A 12DFN

Analog Devices Inc.

1,366
LT8334RDE#TRPBF

Datasheet

- 12-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up, Step-Up/Step-Down Positive or Negative Adjustable 1 2.8V Boost, SEPIC 40V - 40V (Switch) 5A 300kHz ~ 2MHz - No - -40°C ~ 150°C (TJ) Surface Mount 12-DFN (4x3)
TPS54620RGYT

TPS54620RGYT

IC REG BUCK ADJ 6A 14VQFN

Texas Instruments

3,043
TPS54620RGYT

Datasheet

SWIFT™ 14-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 17V 0.8V 15V 6A 200kHz ~ 1.6MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 14-VQFN (3.5x3.5)
MAX20406AFOE/VY+

MAX20406AFOE/VY+

IC REG BCK PROG/0.8V 6A 17FC2QFN

Analog Devices Inc./Maxim Integrated

389
MAX20406AFOE/VY+

Datasheet

- 17-PowerWFQFN Tray Active Step-Down Positive Programmable (Fixed) 1 3V Buck 36V 0.8V (5V) 10V 6A 3MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 17-FC2QFN (3.5x3.75)
MAX20406AFOB/VY+

MAX20406AFOB/VY+

IC REG BCK PROG/0.8V 6A 17FC2QFN

Analog Devices Inc./Maxim Integrated

2,930
MAX20406AFOB/VY+

Datasheet

- 17-PowerWFQFN Tray Active Step-Down Positive Programmable (Fixed) 1 3V Buck 36V 0.8V (3.3V) 10V 6A 2.1MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 17-FC2QFN (3.5x3.75)
LM73606RNPR

LM73606RNPR

IC REG BUCK ADJ 6A 30WQFN

Texas Instruments

2,023
LM73606RNPR

Datasheet

- 30-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 36V 1V 34.2V 6A 350kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 30-WQFN (6x4)
TPS55288RPMR

TPS55288RPMR

IC REG BUCK BST PROG 16A 26VQFN

Texas Instruments

3,382
TPS55288RPMR

Datasheet

- 26-PowerVFQFN Tape & Reel (TR) Active Step-Up/Step-Down Positive Programmable 1 2.7V Buck-Boost 36V 0.8V 22V 16A 200kHz ~ 2.2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 26-VQFN-HR (4x3.5)
TPS552882RPMR

TPS552882RPMR

IC REG BUCK BOOST ADJ 16A 26VQFN

Texas Instruments

2,956
TPS552882RPMR

Datasheet

- 26-PowerVFQFN Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.7V Buck-Boost 36V 0.8V 22V 16A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 26-VQFN-HR (4x3.5)
LM2679SX-5.0/NOPB

LM2679SX-5.0/NOPB

IC REG BUCK 5V 5A TO263

Texas Instruments

1,330
LM2679SX-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tape & Reel (TR) Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 5A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
MAX1722EZK+T

MAX1722EZK+T

IC REG BOOST ADJ 400MA TSOT23-5

Analog Devices Inc./Maxim Integrated

1,018
MAX1722EZK+T

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.8V Boost 5.5V 2V 5.5V 400mA (Switch) - - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-5
RAA2116504GNP#HA0

RAA2116504GNP#HA0

IC REG BUCK ADJ 5A 28QFN

Renesas Electronics Corporation

1,733
RAA2116504GNP#HA0

Datasheet

- 28-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 60V 0.8V 60V 5A 500kHz, 200kHz ~ 2.5MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
MP2145GD-Z

MP2145GD-Z

IC REG BUCK ADJ 6A 12QFN

Monolithic Power Systems Inc.

16,392
MP2145GD-Z

Datasheet

- 12-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.8V Buck 5.5V 0.6V 5.5V 6A 1.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-QFN (2x3)
ADP2370ACPZ-3.3-R7

ADP2370ACPZ-3.3-R7

IC REG BUCK 3.3V 800MA 8LFCSP

Analog Devices Inc.

2,289
ADP2370ACPZ-3.3-R7

Datasheet

- 8-WFDFN Exposed Pad, CSP Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.2V Buck 15V 3.3V - 800mA 600kHz ~ 1.2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-LFCSP-WD (3x3)
TPS548A20RVER

TPS548A20RVER

IC REG BUCK ADJ 15A 28VQFN

Texas Instruments

6,114
TPS548A20RVER

Datasheet

SWIFT™, D-CAP3™, Eco-Mode™ 28-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 1.5V Buck 20V 0.6V 5.5V 15A Selectable - Yes - -40°C ~ 125°C (TA) Surface Mount 28-VQFN-CLIP (4.5x3.5)
TPS548B28RWWR

TPS548B28RWWR

IC REG BUCK ADJ 20A 21VQFN

Texas Instruments

329
TPS548B28RWWR

Datasheet

- 21-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 16V 0.6V 5.5V 20A 600kHz, 800kHz, 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 21-VQFN-HR (4x3)
LT3999EDD#PBF

LT3999EDD#PBF

IC REG PUSH-PULL ADJ 1A 10DFN

Analog Devices Inc.

11,676
LT3999EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Up/Step-Down Positive, Isolation Capable Adjustable 1 2.7V Push-Pull 36V - - 1A 50kHz ~ 1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
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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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