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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
LT3505IDD#TRPBF

LT3505IDD#TRPBF

IC REG BUCK ADJ 1.2A 8DFN

Analog Devices Inc.

400
LT3505IDD#TRPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.78V 33.84V 1.2A 200kHz ~ 3.01MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (3x3)
LTC3546EFE#PBF

LTC3546EFE#PBF

IC REG BCK ADJ 1A/2A DL 28TSSOP

Analog Devices Inc.

1,336
LTC3546EFE#PBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.3V Buck 5.5V 0.6V 5V 1A, 2A 2.25MHz, 750kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-TSSOP-EP
TPS544B25RVFT

TPS544B25RVFT

IC REG BUCK ADJ 20A 40LQFN

Texas Instruments

480
TPS544B25RVFT

Datasheet

SWIFT™ 40-PowerLFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 18V 0.5V 5.5V 20A 200kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 40-LQFN-CLIP (7x5)
LT3990IMSE-5#TRPBF

LT3990IMSE-5#TRPBF

IC REG BUCK 5V 350MA 16MSOP

Analog Devices Inc.

2,617
LT3990IMSE-5#TRPBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) 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
MAX17673AATI+

MAX17673AATI+

IC REG BUCK ADJ SGL/DL 28TQFN

Analog Devices Inc./Maxim Integrated

321
MAX17673AATI+

Datasheet

- 28-WFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 or 2 4.5V, 2.7V Buck 60V, 5.5V 0.9V, 0.75V 5.5V, 4.8V 1.5A, 1A 250kHz ~ 800kHz, 1MHz ~ 4MHz - Yes - -40°C ~ 125°C Surface Mount 28-TQFN (5x5)
LT3002IS8E#PBF

LT3002IS8E#PBF

IC REG FLYBACK ADJ 3.6A 8SOIC

Analog Devices Inc.

228
LT3002IS8E#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 4V Flyback 36V 1V 36V 3.6A 12kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC-EP
ICL7662EBD+T

ICL7662EBD+T

IC REG CHARGE PUMP 14SOIC

Analog Devices Inc./Maxim Integrated

1,954
ICL7662EBD+T

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Ratiometric Negative Fixed 1 4.5V Charge Pump 20V -Vin - - 10kHz - No - -40°C ~ 85°C (TA) Surface Mount 14-SOIC
LTC3612HUDC#PBF

LTC3612HUDC#PBF

IC REG BUCK ADJ 3A 20QFN

Analog Devices Inc.

895
LTC3612HUDC#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.6V 5.5V 3A 300kHz ~ 4MHz - Yes - -55°C ~ 150°C (TJ) Surface Mount 20-QFN (3x4)
LT3470AIDDB#TRPBF

LT3470AIDDB#TRPBF

IC REG BUCK ADJ 250MA 8DFN

Analog Devices Inc.

6,715
LT3470AIDDB#TRPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 40V 1.25V 16V 250mA - - No - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (3x2)
MAX636ACPA+

MAX636ACPA+

IC REG BUCK ADJ/-1.31V 8PDIP

Analog Devices Inc./Maxim Integrated

713
MAX636ACPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Down/Inverted Negative Adjustable (Fixed) 1 2.3V Buck 16.5V -1.31V (-12V) -12V 200mA 50kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
LT3970HMS#PBF

LT3970HMS#PBF

IC REG BUCK ADJ 350MA 10MSOP

Analog Devices Inc.

2,406
LT3970HMS#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 4.2V Buck 40V 1.21V 25V 350mA 200kHz ~ 2.25MHz - No - -40°C ~ 150°C (TJ) Surface Mount 10-MSOP
MAX635ACPA+

MAX635ACPA+

IC REG BCK ADJ/-1.31V 500MA 8DIP

Analog Devices Inc./Maxim Integrated

3,877
MAX635ACPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Down/Inverted Negative Adjustable (Fixed) 1 2.3V Buck 16.5V -1.31V (-5V) -5V 500mA 50kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
LTC1879EGN#PBF

LTC1879EGN#PBF

IC REG BUCK ADJ 1.2A 16SSOP

Analog Devices Inc.

754
LTC1879EGN#PBF

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 2.65V Buck 10V 0.8V 10V 1.2A 550kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-SSOP
MPQ4462DQ-AEC1-LF-Z

MPQ4462DQ-AEC1-LF-Z

IC REG BUCK ADJ 3.5A 10QFN

Monolithic Power Systems Inc.

7,569
MPQ4462DQ-AEC1-LF-Z

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.8V Buck 36V 0.8V 30V 3.5A Up to 4MHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 10-QFN (3x3)
MAX642ACPA+

MAX642ACPA+

IC REG BST ADJ/1.31V 450MA 8PDIP

Analog Devices Inc./Maxim Integrated

1,292
MAX642ACPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up Positive Adjustable (Fixed) 1 2V Boost 16.5V 1.31V (12V) 18V (Switch) 450mA (Switch) 50kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
LT1912EDD#PBF

LT1912EDD#PBF

IC REG BUCK ADJ 2A 10DFN

Analog Devices Inc.

1,880
LT1912EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.79V 20V 2A 200kHz ~ 500kHz - No - 0°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LT3684EDD#TRPBF

LT3684EDD#TRPBF

IC REG BUCK ADJ 2A 10DFN

Analog Devices Inc.

1,822
LT3684EDD#TRPBF

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 34V 1.265V 20V 2A 300kHz ~ 3MHz - No - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LTC3407EDD-3#PBF

LTC3407EDD-3#PBF

IC REG BUCK 1.8V/3.3V DL 10DFN

Analog Devices Inc.

1,744
LTC3407EDD-3#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Fixed 2 3.3V Buck 5.5V 1.8V, 3.3V - 800mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LTC3624EMSE#PBF

LTC3624EMSE#PBF

IC REG BUCK ADJ 2A 12MSOP

Analog Devices Inc.

746
LTC3624EMSE#PBF

Datasheet

- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.7V Buck 17V 0.6V 17V 2A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-MSOP-EP
LTC3407AEMSE-2#PBF

LTC3407AEMSE-2#PBF

IC REG BUCK ADJ 800MA DL 10MSOP

Analog Devices Inc.

561
LTC3407AEMSE-2#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.5V Buck 5.5V 0.6V 5V 800mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-MSOP-EP
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Frequently Asked Questions

Voltage Regulators - DC DC Switching Regulators Overview

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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