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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
LTC3115EDHD-2#PBF

LTC3115EDHD-2#PBF

IC REG BUCK BOOST ADJ 16DFN

Analog Devices Inc.

4,137
LTC3115EDHD-2#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 2.2V Buck-Boost 40V 2.7V 40V 800mA, 2A 100kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-DFN (5x4)
LT8638SJV#PBF

LT8638SJV#PBF

IC REG BUCK ADJ 10A 28LQFN

Analog Devices Inc.

1,308
LT8638SJV#PBF

Datasheet

Silent Switcher®2 28-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 2.8V Buck 42V 0.6V 42V 10A 200kHz ~ 3MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 28-LQFN (5x4)
LT8648SEV#PBF

LT8648SEV#PBF

IC REG BUCK ADJ 15A 36LQFN

Analog Devices Inc.

135
LT8648SEV#PBF

Datasheet

Silent Switcher®2 36-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 3V Buck 42V 0.6V 42V 15A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 36-LQFN (7x4)
LT8612IUDE#TRPBF

LT8612IUDE#TRPBF

IC REG BUCK ADJ 6A 28QFN

Analog Devices Inc.

5,979
LT8612IUDE#TRPBF

Datasheet

- 28-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 41.6V 6A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (3x6)
LT3690IUFE#TRPBF

LT3690IUFE#TRPBF

IC REG BUCK ADJ 4A 26QFN

Analog Devices Inc.

3,877
LT3690IUFE#TRPBF

Datasheet

- 26-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.9V Buck 36V 0.8V 20V 4A 138kHz ~ 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 26-QFN (4x6)
LT1371CR#PBF

LT1371CR#PBF

IC REG BUCK BOOST ADJ 3A DDPAK-7

Analog Devices Inc.

434
LT1371CR#PBF

Datasheet

- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA 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 DDPAK-7
LT1176CSW-5#PBF

LT1176CSW-5#PBF

IC REG BUCK FLYBACK 5V 1.2A 20SO

Analog Devices Inc.

471
LT1176CSW-5#PBF

Datasheet

- 20-SOIC (0.295", 7.50mm Width) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Fixed 1 8V Buck, Flyback 35V 5V - 1.2A (Switch) 100kHz - No - 0°C ~ 70°C (TA) Surface Mount 20-SO
LT3430EFE#PBF

LT3430EFE#PBF

IC REG BUCK SEPIC ADJ 3A 16TSSOP

Analog Devices Inc.

6,527
LT3430EFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 5.5V Buck, SEPIC 60V 1.219V 57.6V 3A 200kHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT3430EFE#TRPBF

LT3430EFE#TRPBF

IC REG BUCK SEPIC ADJ 3A 16TSSOP

Analog Devices Inc.

2,564
LT3430EFE#TRPBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 5.5V Buck, SEPIC 60V 1.219V 57.6V 3A 200kHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT3431EFE#PBF

LT3431EFE#PBF

IC REG BUCK ADJ 3A 16TSSOP

Analog Devices Inc.

281
LT3431EFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 5.5V Buck 60V 1.219V 55.2V 3A (Switch) 500kHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LTC7150SEY#PBF

LTC7150SEY#PBF

IC REG BUCK ADJ 20A 42BGA

Analog Devices Inc.

1,099
LTC7150SEY#PBF

Datasheet

- 42-LFBGA Tray Active Step-Down Positive Adjustable 1 3.1V Buck 20V 0.6V 5.5V 20A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 42-BGA (6x5)
LTC3115EFE-1#TRPBF

LTC3115EFE-1#TRPBF

IC REG BUCK BOOST ADJ 20TSSOP

Analog Devices Inc.

5,498
LTC3115EFE-1#TRPBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.2V Buck-Boost 40V 2.7V 40V 1A, 2A 100kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
LTC3115EFE-1#PBF

LTC3115EFE-1#PBF

IC REG BUCK BOOST ADJ 20TSSOP

Analog Devices Inc.

363
LTC3115EFE-1#PBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 2.2V Buck-Boost 40V 2.7V 40V 1A, 2A 100kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
LTC3649EUFD#PBF

LTC3649EUFD#PBF

IC REG BUCK ADJ 4A 28QFN

Analog Devices Inc.

1,150
LTC3649EUFD#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.1V Buck 60V 0V 55V 4A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LTC7149EUFD#PBF

LTC7149EUFD#PBF

IC REG BUCK ADJ 4A 28QFN

Analog Devices Inc.

527
LTC7149EUFD#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Negative Adjustable 1 3.4V Buck 60V 0V -28V 4A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LTC7149EUFD#TRPBF

LTC7149EUFD#TRPBF

IC REG BUCK ADJ 4A 28QFN

Analog Devices Inc.

302
LTC7149EUFD#TRPBF

Datasheet

- 28-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Negative Adjustable 1 3.4V Buck 60V 0V -28V 4A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LT1074CT#PBF

LT1074CT#PBF

IC REG BUCK BST ADJ 5.5A TO220-5

Analog Devices Inc.

118
LT1074CT#PBF

Datasheet

- TO-220-5 Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 8V Buck, Boost, Flyback 45V 2.5V 35V 5.5A (Switch) 100kHz - No - 0°C ~ 70°C (TA) Through Hole TO-220-5
LT8650SEV#TRPBF

LT8650SEV#TRPBF

IC REG BUCK ADJ 4A DL 32LQFN

Analog Devices Inc.

1,711
LT8650SEV#TRPBF

Datasheet

Silent Switcher®2 32-TFQFN Exposed Pad, 28 Leads Tape & Reel (TR) Active Step-Down Positive Adjustable 2 2.6V Buck 42V 0.8V 42V 4A 300kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 32-LQFN (6x4)
LT8650SEV#PBF

LT8650SEV#PBF

IC REG BUCK ADJ 4A DL 32LQFN

Analog Devices Inc.

225
LT8650SEV#PBF

Datasheet

Silent Switcher®2 32-TFQFN Exposed Pad, 28 Leads Tray Active Step-Down Positive Adjustable 2 2.6V Buck 42V 0.8V 42V 4A 300kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 32-LQFN (6x4)
LT1959IR#PBF

LT1959IR#PBF

IC REG BUCK SEPIC ADJ 4.5A DDPAK

Analog Devices Inc.

306
LT1959IR#PBF

Datasheet

- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tube Active Step-Down Positive Adjustable 1 4.3V Buck, SEPIC 15V 1.21V 12.9V 4.5A (Switch) 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount DDPAK-7
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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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