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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
LT8641ARUDCM#PBF

LT8641ARUDCM#PBF

IC REG BUCK ADJ 3.5A 20QFN

Analog Devices Inc.

2,410
LT8641ARUDCM#PBF

Datasheet

- 20-WFQFN Exposed Pad, 18 Leads Tube Active Step-Down Positive Adjustable 1 2.6V Buck 65V 0.81V 65V 3.5A 200kHz ~ 3MHz AEC-Q100 Yes Automotive - Surface Mount, Wettable Flank 20-QFN (3x4)
LT8300IS5#WTRMPBF

LT8300IS5#WTRMPBF

IC REG FLYBACK 260MA TSOT23-5

Analog Devices Inc.

1,247
LT8300IS5#WTRMPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Up/Step-Down Positive or Negative, Isolation Capable - 1 6V Flyback 100V - 150V (Switch) 260mA (Switch) 7.5kHz ~ 750kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount TSOT-23-5
LT3504IUFD#PBF

LT3504IUFD#PBF

IC REG BUCK ADJ 1A QUAD 28QFN

Analog Devices Inc.

982
LT3504IUFD#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 4 3.2V Buck 40V 0.8V 40V 1A 250kHz ~ 2.1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LTC3111IDE#PBF

LTC3111IDE#PBF

IC REG BUCK BOOST ADJ 1.5A 14DFN

Analog Devices Inc.

175
LTC3111IDE#PBF

Datasheet

- 14-WFDFN Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 2.5V Buck-Boost 15V 2.5V 15V 1.5A 800kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 14-DFN (4x3)
LTC3126EUFD#PBF

LTC3126EUFD#PBF

IC REG BUCK ADJ 2.5A 28QFN

Analog Devices Inc.

6,415
LTC3126EUFD#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.4V Buck 42V 0.818V 42V 2.5A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 28-QFN (4x5)
LTC3428EDD#PBF

LTC3428EDD#PBF

IC REG BOOST ADJ 2A 10DFN

Analog Devices Inc.

518
LTC3428EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Up Positive Adjustable 1 1.6V Boost 4.5V 1.6V 5.25V 2A (Switch) 1MHz - No - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LT3995IMSE#TRPBF

LT3995IMSE#TRPBF

IC REG BUCK ADJ 3A 16MSOP

Analog Devices Inc.

900
LT3995IMSE#TRPBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.3V Buck 60V 1.197V 55.8V 3A 200kHz ~ 2.25MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
MAX1776EUA+

MAX1776EUA+

IC REG BUCK ADJ/5V 600MA 8UMAX

Analog Devices Inc./Maxim Integrated

1,338
MAX1776EUA+

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable (Fixed) 1 4.5V Buck 24V 1.25V (5V) 24V 600mA 200kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-uMAX/uSOP
LT1308BCS8#PBF

LT1308BCS8#PBF

IC REG BOOST SEPIC ADJ 2A 8SO

Analog Devices Inc.

2,079
LT1308BCS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 1V Boost, SEPIC 10V 1.22V 34V 2A (Switch) 600kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SO
TPS546C20ARVFT

TPS546C20ARVFT

IC REG BUCK ADJ 35A 40LQFN

Texas Instruments

854
TPS546C20ARVFT

Datasheet

- 40-PowerLFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 18V 0.35V 5.5V 35A 200kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 40-LQFN-CLIP (7x5)
LM2588S-ADJ/NOPB

LM2588S-ADJ/NOPB

IC REG BST FLYBACK ADJ 5A TO263

Texas Instruments

225
LM2588S-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 4V Boost, Flyback, Forward Converter 40V 1.23V 60V 5A (Switch) 100kHz ~ 200kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
LTC3128EUFD#PBF

LTC3128EUFD#PBF

IC REG BUCK BOOST ADJ 3A 20QFN

Analog Devices Inc.

2,726
LTC3128EUFD#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 1.73V Buck-Boost 5.5V 1.8V 5.5V 3A 1.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (4x5)
LTC3623EUDD#PBF

LTC3623EUDD#PBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

3,882
LTC3623EUDD#PBF

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 1.5V Buck 15V 0V 14.5V 5A 400kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (3x5)
LT8653SEV#PBF

LT8653SEV#PBF

IC REG BUCK 3.3V/5V DL 20LQFN

Analog Devices Inc.

3,115
LT8653SEV#PBF

Datasheet

Silent Switcher®2 20-TFQFN Exposed Pad Tray Active Step-Down Positive Fixed 2 3V Buck 42V 3.3V, 5V - 2A, 2A 300kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 20-LQFN (4x3)
LT8631IFE#PBF

LT8631IFE#PBF

IC REG BUCK ADJ 1A 20TSSOP

Analog Devices Inc.

2,848
LT8631IFE#PBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 100V 0.8V 60V 1A 100kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
LT8630IFE#PBF

LT8630IFE#PBF

IC REG BUCK ADJ 600MA 20TSSOP

Analog Devices Inc.

544
LT8630IFE#PBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 100V 0.8V 60V 600mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
MAX15303AA00+TCM

MAX15303AA00+TCM

IC REG BUCK ADJ 6A 40TQFN

Analog Devices Inc./Maxim Integrated

759
MAX15303AA00+TCM

Datasheet

- 40-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 14V 0.5V 5.25V 6A 300kHz ~ 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 40-TQFN (6x6)
LT1172CQ#PBF

LT1172CQ#PBF

IC REG BCK BST ADJ 1.25A DDPAK-5

Analog Devices Inc.

190
LT1172CQ#PBF

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 3V Buck, Boost, Cuk, Flyback, Forward Converter 40V 1.244V 65V (Switch) 1.25A (Switch) 100kHz - No - 0°C ~ 100°C (TJ) Surface Mount DDPAK-5
LTC3112EDHD#TRPBF

LTC3112EDHD#TRPBF

IC REG BUCK BOOST ADJ 2.5A 16DFN

Analog Devices Inc.

4,153
LTC3112EDHD#TRPBF

Datasheet

- 16-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.7V Buck-Boost 15V 2.5V 14V 2.5A 750kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-DFN (5x4)
MAX1672EEE+T

MAX1672EEE+T

IC REG BUCK BST ADJ 300MA 16QSOP

Analog Devices Inc./Maxim Integrated

1,137
MAX1672EEE+T

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable (Programmable) 1 1.8V Buck, Boost 11V 1.25V (3.3V, 5.5V) 5.5V 300mA - - No - -40°C ~ 85°C (TA) Surface Mount 16-QSOP
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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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