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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
LTC3245EDE#PBF

LTC3245EDE#PBF

IC REG CHRG PUMP ADJ 250MA 12DFN

Analog Devices Inc.

805
LTC3245EDE#PBF

Datasheet

- 12-WFDFN Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable (Programmable) 1 2.7V Charge Pump 38V 2.5V (3.3V, 5V) 5V 250mA 450kHz - No - -40°C ~ 125°C (TJ) Surface Mount 12-DFN (4x3)
LTC3621IDCB-25#TRMPBF

LTC3621IDCB-25#TRMPBF

IC REG BUCK 5V 1A 6DFN

Analog Devices Inc.

218
LTC3621IDCB-25#TRMPBF

Datasheet

- 6-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.7V Buck 17V 5V - 1A 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 6-DFN (2x3)
LM2585S-ADJ/NOPB

LM2585S-ADJ/NOPB

IC REG BST FLYBACK ADJ 3A TO263

Texas Instruments

2,992
LM2585S-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 4V Boost, Flyback, Forward Converter 40V 1.23V 60V 3A (Switch) 100kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
LTC3404EMS8#TRPBF

LTC3404EMS8#TRPBF

IC REG BUCK ADJ 600MA 8MSOP

Analog Devices Inc.

10,003
LTC3404EMS8#TRPBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.65V Buck 6V 0.8V 6V 600mA 1.4MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-MSOP
LTC3632IMS8E#TRPBF

LTC3632IMS8E#TRPBF

IC REG BUCK ADJ 20MA 8MSOP

Analog Devices Inc.

976
LTC3632IMS8E#TRPBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive or Negative Adjustable 1 4.5V Buck 50V 0.8V 50V 20mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LTC3536EMSE#TRPBF

LTC3536EMSE#TRPBF

IC REG BUCK BOOST ADJ 1A 12MSOP

Analog Devices Inc.

318
LTC3536EMSE#TRPBF

Datasheet

- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 1.8V 5.5V 1A 300kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-MSOP-EP
LTC3404EMS8#PBF

LTC3404EMS8#PBF

IC REG BUCK ADJ 600MA 8MSOP

Analog Devices Inc.

184
LTC3404EMS8#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 2.65V Buck 6V 0.8V 6V 600mA 1.4MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-MSOP
LT8624SAV#PBF

LT8624SAV#PBF

IC REG BUCK ADJ 4A 20LQFN

Analog Devices Inc.

296
LT8624SAV#PBF

Datasheet

Silent Switcher®3 20-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 2.7V Buck 18V 0V 17.5V 4A 300kHz ~ 6MHz - Yes - -40°C ~ 125°C Surface Mount 20-LQFN (4x3)
RAA229134GNP#HA0

RAA229134GNP#HA0

IC REG

Renesas Electronics Corporation

2,715
RAA229134GNP#HA0

Datasheet

- - Tape & Reel (TR) Active - - - - - - - - - - - - - - - - -
LTC3646EDE-1#PBF

LTC3646EDE-1#PBF

IC REG BUCK ADJ 1A 14DFN

Analog Devices Inc.

3,410
LTC3646EDE-1#PBF

Datasheet

- 14-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 40V 0.6V 15V 1A 200kHz ~ 3MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 14-DFN (4x3)
MAX763ACSA+

MAX763ACSA+

IC REG BUCK 3.3V 500MA 8SOIC

Analog Devices Inc./Maxim Integrated

302
MAX763ACSA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 3.3V Buck 11V 3.3V - 500mA 200kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SOIC
LT3973EMSE-5#PBF

LT3973EMSE-5#PBF

IC REG BUCK 5V 750MA 10MSOP

Analog Devices Inc.

109
LT3973EMSE-5#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 4.2V Buck 42V 5V - 750mA 195kHz ~ 2.15MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
MAX1681ESA+T

MAX1681ESA+T

IC REG CHRG PUMP INV 125MA 8SOIC

Analog Devices Inc./Maxim Integrated

3,280
MAX1681ESA+T

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Ratiometric Positive or Negative Fixed 1 2V Charge Pump 5.5V -Vin, 2Vin - 125mA 500kHz, 1MHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
MAX1675EUA+

MAX1675EUA+

IC REG BOOST ADJ 360MA 8UMAX

Analog Devices Inc./Maxim Integrated

367
MAX1675EUA+

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up Positive Adjustable (Programmable) 1 0.7V Boost 5.5V 2V (3.3V, 5V) 5.5V 360mA (Switch) Up to 500Hz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-uMAX/uSOP
LTC3407EDD#TRPBF

LTC3407EDD#TRPBF

IC REG BUCK ADJ 600MA DL 10DFN

Analog Devices Inc.

5,907
LTC3407EDD#TRPBF

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 2.5V Buck 5.5V 0.6V 5V 600mA 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LTC3440EDD#TRPBF

LTC3440EDD#TRPBF

IC REG BUCK BST ADJ 600MA 10DFN

Analog Devices Inc.

3,350
LTC3440EDD#TRPBF

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.5V Buck-Boost 5.5V 2.5V 5.5V 600mA 300kHz ~ 2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LT8304IS8E-1#PBF

LT8304IS8E-1#PBF

IC REG FLYBACK ADJ 2A 8SOIC

Analog Devices Inc.

8,510
LT8304IS8E-1#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tube Active Step-Up/Step-Down Positive or Negative, Isolation Capable Adjustable 1 3V Flyback 100V 1V 150V (Switch) 2A (Switch) 11kHz ~ 350kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC-EP
MAX25240AFFD/VY+

MAX25240AFFD/VY+

IC REG BUCK BST ADJ/3V 22FC2QFN

Analog Devices Inc./Maxim Integrated

506
MAX25240AFFD/VY+

Datasheet

- 22-PowerWFQFN Tray Active Step-Up/Step-Down Positive Adjustable (Fixed) 1 2V Buck-Boost 36V 3V (10.5V) 20V 6A 2.1MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 22-FC2QFN (4.25x4.25)
LTC3310SEV#TRMPBF

LTC3310SEV#TRMPBF

IC REG BUCK ADJ 10A 18LQFN

Analog Devices Inc.

544
LTC3310SEV#TRMPBF

Datasheet

Silent Switcher®2 18-TFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.5V 5.5V 10A 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 18-LQFN (3x3)
LT3990IMSE-5#PBF

LT3990IMSE-5#PBF

IC REG BUCK 5V 350MA 16MSOP

Analog Devices Inc.

6,330
LT3990IMSE-5#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 4.2V Buck 62V 5V - 350mA 210kHz ~ 2.3MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
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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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