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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
LT8612EUDE#PBF

LT8612EUDE#PBF

IC REG BUCK ADJ 6A 28QFN

Analog Devices Inc.

3,708
LT8612EUDE#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube 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)
LTC7103IUHE#TRPBF

LTC7103IUHE#TRPBF

IC REG BUCK ADJ 2.3A 36QFN

Analog Devices Inc.

1,991
LTC7103IUHE#TRPBF

Datasheet

- 36-WFQFN, 26 Leads, Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.4V Buck 105V 1V 105V 2.3A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 36-QFN (5x6)
LT3690EUFE#PBF

LT3690EUFE#PBF

IC REG BUCK ADJ 4A 26QFN

Analog Devices Inc.

556
LT3690EUFE#PBF

Datasheet

- 26-WFQFN Exposed Pad Tube 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)
LT3690EUFE#TRPBF

LT3690EUFE#TRPBF

IC REG BUCK ADJ 4A 26QFN

Analog Devices Inc.

461
LT3690EUFE#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)
LT1076CR#TRPBF

LT1076CR#TRPBF

IC REG BUCK BOOST ADJ 2A DDPAK-7

Analog Devices Inc.

373
LT1076CR#TRPBF

Datasheet

- TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tape & Reel (TR) Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 8V Buck, Boost, Flyback 45V 2.5V 35V 2A (Switch) 100kHz - No - 0°C ~ 70°C (TA) Surface Mount DDPAK-7
LT8627SPJV#TRMPBF

LT8627SPJV#TRMPBF

IC REG BUCK ADJ 16A 24LQFN

Analog Devices Inc.

547
LT8627SPJV#TRMPBF

Datasheet

Silent Switcher®3 24-TFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.8V Buck 18V 0V 17.5V 16A 300kHz ~ 4MHz - Yes - -40°C ~ 150°C Surface Mount 24-LQFN (4x4)
LTC3605IUF#TRPBF

LTC3605IUF#TRPBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

7,232
LTC3605IUF#TRPBF

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 15V 0.6V 14.85V 5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (4x4)
LTC1474IS8#TRPBF

LTC1474IS8#TRPBF

IC REG BUCK BOOST ADJ 750MA 8SO

Analog Devices Inc.

4,016
LTC1474IS8#TRPBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 3V Buck, Buck-Boost, SEPIC 18V 1.23V - 750mA (Switch) - - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LTC3605IUF#PBF

LTC3605IUF#PBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

3,953
LTC3605IUF#PBF

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 15V 0.6V 14.85V 5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (4x4)
LTC3605AIUF#PBF

LTC3605AIUF#PBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

2,131
LTC3605AIUF#PBF

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 20V 0.6V 19.8V 5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (4x4)
LTC1474IS8#PBF

LTC1474IS8#PBF

IC REG BUCK BOOST ADJ 750MA 8SO

Analog Devices Inc.

1,868
LTC1474IS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 3V Buck, Buck-Boost, SEPIC 18V 1.23V - 750mA (Switch) - - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LTC3605AIUF#TRPBF

LTC3605AIUF#TRPBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

543
LTC3605AIUF#TRPBF

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 20V 0.6V 19.8V 5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (4x4)
LTC1474IS8-3.3#PBF

LTC1474IS8-3.3#PBF

IC REG BUCK BOOST 3.3V 750MA 8SO

Analog Devices Inc.

100
LTC1474IS8-3.3#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down, Step-Up/Step-Down Positive or Negative Fixed 1 3V Buck, Buck-Boost, SEPIC 18V 3.3V - 750mA (Switch) - - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LT8640HUDC#TRPBF

LT8640HUDC#TRPBF

IC REG BUCK ADJ 5A 20QFN

Analog Devices Inc.

3,752
LT8640HUDC#TRPBF

Datasheet

Silent Switcher®1 20-WFQFN, 18 Leads, Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 5A 210kHz ~ 2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 20-QFN (3x4)
LT8641HUDC#TRPBF

LT8641HUDC#TRPBF

IC REG BUCK ADJ 3.5A 20QFN

Analog Devices Inc.

3,040
LT8641HUDC#TRPBF

Datasheet

Silent Switcher®1 20-WFQFN, 18 Leads, Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 65V 0.8V 64.35V 3.5A 210kHz ~ 2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 20-QFN (3x4)
LT8640HUDC#PBF

LT8640HUDC#PBF

IC REG BUCK ADJ 5A 20QFN

Analog Devices Inc.

3,019
LT8640HUDC#PBF

Datasheet

Silent Switcher®1 20-WFQFN, 18 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 5A 210kHz ~ 2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 20-QFN (3x4)
LT8643SIV#PBF

LT8643SIV#PBF

IC REG BUCK ADJ 6A 24LQFN

Analog Devices Inc.

1,640
LT8643SIV#PBF

Datasheet

Silent Switcher®2 24-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 6A 200kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-LQFN (4x4)
LT8640SIV#PBF

LT8640SIV#PBF

IC REG BUCK ADJ 6A 24LQFN

Analog Devices Inc.

1,457
LT8640SIV#PBF

Datasheet

Silent Switcher®2 24-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 6A 200kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-LQFN (4x4)
LT3680IMSE#PBF

LT3680IMSE#PBF

IC REG BUCK ADJ 3.5A 10MSOP

Analog Devices Inc.

1,558
LT3680IMSE#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.79V 30V 3.5A 230kHz ~ 2.45MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LT1054IS8#TRPBF

LT1054IS8#TRPBF

IC REG CHARGE PUMP ADJ/2.5V 8SO

Analog Devices Inc.

5,407
LT1054IS8#TRPBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Ratiometric, Step-Up Positive or Negative Adjustable (Fixed) 1 3.5V Charge Pump 15V 2.5V (-Vin, 2Vin) 30V 100mA 25kHz - No - -40°C ~ 100°C (TJ) Surface Mount 8-SO
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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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