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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
LT1377CS8#TRPBF

LT1377CS8#TRPBF

IC REG BUCK BOOST ADJ 1.5A 8SO

Analog Devices Inc.

729
LT1377CS8#TRPBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 2.7V Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC 30V 1.245V 35V (Switch) 1.5A (Switch) 1MHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-SO
MAX685ETG+

MAX685ETG+

IC REG BOOST ADJ 440MA DL 24TQFN

Analog Devices Inc./Maxim Integrated

225
MAX685ETG+

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Up Positive and Negative (Dual Rail) Adjustable 2 2.7V Boost 5.5V -1.27V, 2.7V 24V, -9V 440mA (Switch) 220kHz, 400kHz - No - -40°C ~ 85°C (TA) Surface Mount 24-TQFN (4x4)
LTC3633EFE#TRPBF

LTC3633EFE#TRPBF

IC REG BUCK ADJ 3A DL 28TSSOP

Analog Devices Inc.

2,237
LTC3633EFE#TRPBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 3.6V Buck 15V 0.6V 14.7V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-TSSOP-EP
MAX5025EUT+T

MAX5025EUT+T

IC REG BOOST ADJ 260MA SOT6

Analog Devices Inc./Maxim Integrated

1,824
MAX5025EUT+T

Datasheet

- SOT-23-6 Tape & Reel (TR) Not For New Designs Step-Up Positive Adjustable 1 4.5V Boost 11V 4.5V 36V 260mA (Switch) 500kHz - No - -40°C ~ 85°C (TA) Surface Mount SOT-6
LTC3633AEFE-1#PBF

LTC3633AEFE-1#PBF

IC REG BUCK ADJ 3A DL 28TSSOP

Analog Devices Inc.

856
LTC3633AEFE-1#PBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.6V Buck 20V 1.5V 12V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-TSSOP-EP
LTC3633AEFE-2#PBF

LTC3633AEFE-2#PBF

IC REG BUCK ADJ 3A DL 28TSSOP

Analog Devices Inc.

339
LTC3633AEFE-2#PBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.6V Buck 20V 0.6V 6V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-TSSOP-EP
MAX1842EEE+

MAX1842EEE+

IC REG BUCK ADJ 1A 16QSOP

Analog Devices Inc./Maxim Integrated

1,099
MAX1842EEE+

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable (Programmable) 1 3V Buck 5.5V 1.1V (1.5V, 1.8V, 2.5V) 5.5V 1A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-QSOP
LTC3633AEFE#PBF

LTC3633AEFE#PBF

IC REG BUCK ADJ 3A DL 28TSSOP

Analog Devices Inc.

3,849
LTC3633AEFE#PBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.6V Buck 20V 0.6V 6V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-TSSOP-EP
LTC3413EFE#PBF

LTC3413EFE#PBF

IC REG BUCK ADJ 3A 16TSSOP

Analog Devices Inc.

1,143
LTC3413EFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 1.125V 5.5V 3A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-TSSOP-EP
LT1371CSW#PBF

LT1371CSW#PBF

IC REG BUCK BOOST ADJ 3A 20SO

Analog Devices Inc.

2,950
LT1371CSW#PBF

Datasheet

- 20-SOIC (0.295", 7.50mm Width) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 2.7V Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC 30V 1.245V 35V (Switch) 3A (Switch) 500kHz - No - 0°C ~ 70°C (TA) Surface Mount 20-SO
LT3980HMSE#TRPBF

LT3980HMSE#TRPBF

IC REG BUCK ADJ 2A 16MSOP

Analog Devices Inc.

3,785
LT3980HMSE#TRPBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 58V 0.79V 57.42V 2A 225kHz ~ 2.25MHz - No - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LT1376HVIS8#PBF

LT1376HVIS8#PBF

IC REG BUCK SEPIC ADJ 1.5A 8SO

Analog Devices Inc.

6,040
LT1376HVIS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 5V Buck, SEPIC 30V 2.42V 25.8V 1.5A (Switch) 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO
LT8652SEV#TRPBF

LT8652SEV#TRPBF

IC REG BUCK 1V/3.3V DL 36LQFN

Analog Devices Inc.

2,586
LT8652SEV#TRPBF

Datasheet

Silent Switcher®2 36-TFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 2 3V Buck 18V 1V, 3.3V - 8.5A, 8.5A 300kHz ~ 3MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 36-LQFN (4x7)
LTC3636EUFD#TRPBF

LTC3636EUFD#TRPBF

IC REG BUCK ADJ 6A DL 28QFN

Analog Devices Inc.

4,734
LTC3636EUFD#TRPBF

Datasheet

- 28-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 3.1V Buck 20V 0.6V 5V 6A Adjustable - No - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LTC3643EUDD#PBF

LTC3643EUDD#PBF

IC REG BUCK BOOST ADJ 2A 24QFN

Analog Devices Inc.

498
LTC3643EUDD#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)
LTC3128EFE#PBF

LTC3128EFE#PBF

IC REG BUCK BOOST ADJ 3A 24TSSOP

Analog Devices Inc.

164
LTC3128EFE#PBF

Datasheet

- 24-TSSOP (0.173", 4.40mm Width) 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 24-TSSOP
LTC3636EUFD-1#PBF

LTC3636EUFD-1#PBF

IC REG BUCK ADJ 6A DL 28QFN

Analog Devices Inc.

147
LTC3636EUFD-1#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.1V Buck 20V 1.8V 12V 6A Adjustable - No - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
MAX631AESA+

MAX631AESA+

IC REG BST ADJ/1.31V 450MA 8SOIC

Analog Devices Inc./Maxim Integrated

123
MAX631AESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up Positive or Negative Adjustable (Fixed) 1 2V Boost, Charge Pump 16.5V 1.31V (5V) 18V (Switch) 450mA (Switch) 45kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LTC1174HVIS8#PBF

LTC1174HVIS8#PBF

IC REG BUCK BOOST ADJ 8SO

Analog Devices Inc.

367
LTC1174HVIS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 4V Buck, Buck-Boost 18.5V 1.25V 18V 340mA, 600mA 200kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LTC7103RUHE-1#PBF

LTC7103RUHE-1#PBF

IC REG BUCK ADJ 2.3A 36QFN

Analog Devices Inc.

4,179
LTC7103RUHE-1#PBF

Datasheet

- 36-WFQFN, 26 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.4V Buck 105V 1V 105V 2.3A 200kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 36-QFN (5x6)
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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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