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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
LT3506AIFE#PBF

LT3506AIFE#PBF

IC REG BUCK ADJ 1.6A DL 16TSSOP

Analog Devices Inc.

4,306
LT3506AIFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.6V Buck 25V 0.8V 22V 1.6A 1.1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
MAX680ESA+

MAX680ESA+

IC REG CHARGE PUMP 2VIN DL 8SOIC

Analog Devices Inc./Maxim Integrated

632
MAX680ESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive and Negative (Dual Rail) Fixed 2 2V Charge Pump 6V ±2Vin - 10mA 8kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LT3579IUFD#PBF

LT3579IUFD#PBF

IC REG BST CHARGE PUMP ADJ 20QFN

Analog Devices Inc.

607
LT3579IUFD#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Up, Step-Up/Step-Down Positive or Negative Adjustable 1 2.5V Boost, Charge Pump, Cuk, Flyback, SEPIC 16V 1.215V 42V (Switch) 6A (Switch) 200kHz ~ 2.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (4x5)
TPS543C20RVFT

TPS543C20RVFT

IC REG BUCK ADJ 40A 40LQFN

Texas Instruments

395
TPS543C20RVFT

Datasheet

SWIFT™ 40-PowerLFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 16V 0.6V 5.5V 40A 300kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 40-LQFN-CLIP (7x5)
LT1072IN8#PBF

LT1072IN8#PBF

IC REG BUCK BST ADJ 1.25A 8PDIP

Analog Devices Inc.

112
LT1072IN8#PBF

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 3V Buck, Boost, Cuk, Flyback, Forward Converter 40V 1.25V 65V (Switch) 1.25A (Switch) 40kHz - No - -40°C ~ 125°C (TJ) Through Hole 8-PDIP
LTC3412IFE#PBF

LTC3412IFE#PBF

IC REG BUCK ADJ 2.5A 16TSSOP

Analog Devices Inc.

443
LTC3412IFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.625V Buck 5.5V 0.8V 5V 2.5A 300kHz ~ 4MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-TSSOP-EP
LTC3643IUDD#PBF

LTC3643IUDD#PBF

IC REG BUCK BOOST ADJ 2A 24QFN

Analog Devices Inc.

1,440
LTC3643IUDD#PBF

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Up, Step-Down Positive Adjustable 1 3V Buck, Boost 17V 0.6V - 2A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (3x5)
LTC3414IFE#PBF

LTC3414IFE#PBF

IC REG BUCK ADJ 4A 20TSSOP

Analog Devices Inc.

666
LTC3414IFE#PBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.8V 5V 4A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 20-TSSOP-EP
MAX1677EEE+

MAX1677EEE+

IC REG BOOST ADJ/3.3V DL 16QSOP

Analog Devices Inc./Maxim Integrated

268
MAX1677EEE+

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tube Active Step-Up Positive Adjustable (Fixed) 2 0.7V Boost 5.5V 1.25V, 2.5V (3.3V) 5.5V, 28V 350mA (Switch) 300kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-QSOP
LT8643SIV-2#PBF

LT8643SIV-2#PBF

IC REG BUCK ADJ 6A 24LQFN

Analog Devices Inc.

907
LT8643SIV-2#PBF

Datasheet

Silent Switcher®2 24-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 6A 180kHz ~ 2.1MHz - Yes - -40°C ~ 125°C Surface Mount 24-LQFN (4x4)
LTC3407IDD-2#PBF

LTC3407IDD-2#PBF

IC REG BUCK ADJ 800MA DL 10DFN

Analog Devices Inc.

140
LTC3407IDD-2#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.5V Buck 5.5V 0.6V 5V 800mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LTC3622EMSE-2#PBF

LTC3622EMSE-2#PBF

IC REG BUCK ADJ 1A DL 16MSOP

Analog Devices Inc.

101
LTC3622EMSE-2#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.7V Buck 17V 0.6V 17V 1A 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LTC3246IMSE#PBF

LTC3246IMSE#PBF

IC REG CHG PUMP ADJ 500MA 16MSOP

Analog Devices Inc.

3,749
LTC3246IMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable (Programmable) 1 2.7V Charge Pump 38V 2.5V (3.3V, 5V) 5V 500mA 450kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LT3688EFE#PBF

LT3688EFE#PBF

IC REG BUCK ADJ 800MA DL 24TSSOP

Analog Devices Inc.

2,988
LT3688EFE#PBF

Datasheet

- 24-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.8V Buck 36V 0.8V 36V 800mA 500kHz ~ 2.1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 24-TSSOP
LT3509HMSE#PBF

LT3509HMSE#PBF

IC REG BUCK ADJ 700MA DL 16MSOP

Analog Devices Inc.

538
LT3509HMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.6V Buck 36V 0.8V 34.2V 700mA 260kHz ~ 2.15MHz - No - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LTC3126MPFE#PBF

LTC3126MPFE#PBF

IC REG BUCK ADJ 2.5A 28TSSOP

Analog Devices Inc.

2,529
LTC3126MPFE#PBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.4V Buck 42V 0.818V 42V 2.5A 200kHz ~ 2.2MHz - Yes - -55°C ~ 150°C (TJ) Surface Mount 28-TSSOP-EP
LTC3637HMSE#PBF

LTC3637HMSE#PBF

IC REG BUCK ADJ 1A 16MSOP

Analog Devices Inc.

166
LTC3637HMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 76V 0.8V 76V 1A - - No - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LTC3637HDHC#PBF

LTC3637HDHC#PBF

IC REG BUCK ADJ 1A 16DFN

Analog Devices Inc.

129
LTC3637HDHC#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 76V 0.8V 76V 1A - - No - -40°C ~ 150°C (TJ) Surface Mount 16-DFN (5x3)
LT1374IS8#PBF

LT1374IS8#PBF

IC REG BUCK SEPIC ADJ 4.5A 8SO

Analog Devices Inc.

250
LT1374IS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 5V Buck, SEPIC 25V 2.42V 21.5V 4.5A (Switch) 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO
LTC3376EY#PBF

LTC3376EY#PBF

IC REG BUCK ADJ 12A QUAD 64BGA

Analog Devices Inc.

249
LTC3376EY#PBF

Datasheet

- 64-LFBGA Tray Active Step-Down Positive Adjustable 4 3V Buck 20V 0.4V 16.6V 12A 2MHz - Yes - -40°C ~ 125°C Surface Mount 64-BGA (7x7)
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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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