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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
LTC3630AIMSE#TRPBF

LTC3630AIMSE#TRPBF

IC REG BUCK ADJ 500MA 16MSOP

Analog Devices Inc.

6,924
LTC3630AIMSE#TRPBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad Tape & Reel (TR) Active Step-Down Positive or Negative Adjustable (Programmable) 1 4V Buck 76V 0.8V (1.8V, 3.3V, 5V) 76V 500mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LTC3630AIDHC#PBF

LTC3630AIDHC#PBF

IC REG BUCK ADJ 500MA 16DFN

Analog Devices Inc.

285
LTC3630AIDHC#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Down Positive or Negative Adjustable (Programmable) 1 4V Buck 76V 0.8V (1.8V, 3.3V, 5V) 76V 500mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-DFN (5x3)
LT1576CS8#PBF

LT1576CS8#PBF

IC REG BUCK ADJ 1.5A 8SO

Analog Devices Inc.

108
LT1576CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 5V Buck 25V 1.21V 23.5V 1.5A 200kHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-SO
LT1578CS8#PBF

LT1578CS8#PBF

IC REG BUCK ADJ 1.5A 8SO

Analog Devices Inc.

4,460
LT1578CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 4V Buck 15V 1.21V 14.1V 1.5A 200kHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-SO
LTC3614HUDD#PBF

LTC3614HUDD#PBF

IC REG BUCK ADJ 4A 24QFN

Analog Devices Inc.

869
LTC3614HUDD#PBF

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.6V 5.5V 4A 300kHz ~ 4MHz - Yes - -55°C ~ 150°C (TJ) Surface Mount 24-QFN (3x5)
LT8301HS5#TRPBF

LT8301HS5#TRPBF

IC REG FLYBACK 1.2A TSOT23-5

Analog Devices Inc.

2,593
LT8301HS5#TRPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Up/Step-Down Positive or Negative, Isolation Capable - 1 2.7V Flyback 42V - - 1.2A Down to 10kHz - No - -40°C ~ 150°C (TJ) Surface Mount TSOT-23-5
LTC3458LEDE#PBF

LTC3458LEDE#PBF

IC REG BOOST ADJ 1.4A 12DFN

Analog Devices Inc.

582
LTC3458LEDE#PBF

Datasheet

- 12-WFDFN Exposed Pad Tube Active Step-Up Positive Adjustable 1 1.5V Boost 6V 2V 6V 1.4A (Switch) 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 12-DFN (4x3)
LTC3335EUDC#TRPBF

LTC3335EUDC#TRPBF

IC REG BUCK BST PROG 50MA 20QFN

Analog Devices Inc.

2,100
LTC3335EUDC#TRPBF

Datasheet

- 20-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Programmable 1 1.8V Buck-Boost 5.5V 1.8V 5V 50mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LTC3417EDHC#TRPBF

LTC3417EDHC#TRPBF

IC REG BUCK ADJ DL 16DFN

Analog Devices Inc.

1,549
LTC3417EDHC#TRPBF

Datasheet

- 16-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 2.25V Buck 5.5V 0.8V 5V 800mA, 1.4A 1.5MHz, 600kHz ~ 4MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-DFN (5x3)
LTC3335EUDC#PBF

LTC3335EUDC#PBF

IC REG BUCK BST PROG 50MA 20QFN

Analog Devices Inc.

709
LTC3335EUDC#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Up/Step-Down Positive Programmable 1 1.8V Buck-Boost 5.5V 1.8V 5V 50mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LT1375CS8#PBF

LT1375CS8#PBF

IC REG BUCK SEPIC ADJ 1.5A 8SO

Analog Devices Inc.

375
LT1375CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 5V Buck, SEPIC 25V 2.42V 21.5V 1.5A (Switch) 500kHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-SO
LTC3417EDHC#PBF

LTC3417EDHC#PBF

IC REG BUCK ADJ DL 16DFN

Analog Devices Inc.

319
LTC3417EDHC#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.25V Buck 5.5V 0.8V 5V 800mA, 1.4A 1.5MHz, 600kHz ~ 4MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-DFN (5x3)
TPS548D22RVFT

TPS548D22RVFT

IC REG BUCK ADJ 40A 40LQFN

Texas Instruments

680
TPS548D22RVFT

Datasheet

SWIFT™, D-CAP3™, Eco-Mode™ 40-PowerLFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 1.5V Buck 16V 0.6V 5.5V 40A Selectable - Yes - -40°C ~ 125°C (TJ) Surface Mount 40-LQFN-CLIP (7x5)
TPS548D21RVFT

TPS548D21RVFT

IC REG BUCK ADJ 40A 40LQFN

Texas Instruments

500
TPS548D21RVFT

Datasheet

SWIFT™, D-CAP3™, Eco-Mode™ 40-PowerLFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 1.5V Buck 16V 0.6V 5.5V 40A Selectable - Yes - -40°C ~ 125°C (TJ) Surface Mount 40-LQFN-CLIP (7x5)
LTC3417AIDHC-2#PBF

LTC3417AIDHC-2#PBF

IC REG BCK ADJ 1A/1.5A DL 16DFN

Analog Devices Inc.

266
LTC3417AIDHC-2#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.25V Buck 5.5V 0.8V 5V 1A, 1.5A 1.5MHz, 600kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-DFN (5x3)
LTC3417AIDHC-1#PBF

LTC3417AIDHC-1#PBF

IC REG BCK ADJ 1A/1.5A DL 16DFN

Analog Devices Inc.

194
LTC3417AIDHC-1#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.25V Buck 5.5V 0.8V 5V 1A, 1.5A 1.5MHz, 600kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-DFN (5x3)
LT3479EFE#TRPBF

LT3479EFE#TRPBF

IC REG BOOST ADJ 3A 16TSSOP

Analog Devices Inc.

1,768
LT3479EFE#TRPBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up Positive or Negative Adjustable 1 2.5V Boost 24V 1.235V 42V (Switch) 3A (Switch) 200kHz ~ 3.5MHz - No - 0°C ~ 70°C (TA) Surface Mount 16-TSSOP-EP
LT3470HDDB#TRMPBF

LT3470HDDB#TRMPBF

IC REG BUCK ADJ 200MA 8DFN

Analog Devices Inc.

1,102
LT3470HDDB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 40V 1.25V 16V 200mA - - No - -40°C ~ 150°C (TJ) Surface Mount 8-DFN (3x2)
LT3973HDD-5#PBF

LT3973HDD-5#PBF

IC REG BUCK 5V 750MA 10DFN

Analog Devices Inc.

3,803
LT3973HDD-5#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Fixed 1 4.2V Buck 42V 5V - 750mA 195kHz ~ 2.15MHz - No - -40°C ~ 150°C (TJ) Surface Mount 10-DFN (3x3)
LT3973HDD#PBF

LT3973HDD#PBF

IC REG BUCK ADJ 750MA 10DFN

Analog Devices Inc.

2,643
LT3973HDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.2V Buck 42V 1.21V 24V 750mA 195kHz ~ 2.15MHz - No - -40°C ~ 150°C (TJ) Surface Mount 10-DFN (3x3)
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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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