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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
LT3980EDE#PBF

LT3980EDE#PBF

IC REG BUCK ADJ 2A 14DFN

Analog Devices Inc.

2,688
LT3980EDE#PBF

Datasheet

- 14-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 58V 0.79V 57.42V 2A 225kHz ~ 2.25MHz - No - -40°C ~ 125°C (TJ) Surface Mount 14-DFN (4x3)
LT3980EMSE#PBF

LT3980EMSE#PBF

IC REG BUCK ADJ 2A 16MSOP

Analog Devices Inc.

2,122
LT3980EMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 58V 0.79V 57.42V 2A 225kHz ~ 2.25MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LT8304ES8E-1#TRPBF

LT8304ES8E-1#TRPBF

IC REG FLYBACK ADJ 2A 8SOIC

Analog Devices Inc.

1,260
LT8304ES8E-1#TRPBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive or Negative, Isolation Capable Adjustable 1 3V Flyback 100V 1V 150V (Switch) 2A (Switch) 11kHz ~ 350kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC-EP
LT1936HMS8E#PBF

LT1936HMS8E#PBF

IC REG BUCK ADJ 1.4A 8MSOP

Analog Devices Inc.

323
LT1936HMS8E#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 36V 1.2V 33.12V 1.4A 500kHz - No - -40°C ~ 150°C (TJ) Surface Mount 8-MSOP-EP
LTC3545IUD#PBF

LTC3545IUD#PBF

IC REG BUCK ADJ 800MA TRPL 16QFN

Analog Devices Inc.

961
LTC3545IUD#PBF

Datasheet

- 16-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 3 2.25V Buck 5.5V 0.6V 5.5V 800mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x3)
LTC1877IMS8#PBF

LTC1877IMS8#PBF

IC REG BUCK ADJ 600MA 8MSOP

Analog Devices Inc.

433
LTC1877IMS8#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 2.65V Buck 10V 0.8V 10V 600mA 550kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-MSOP
LTC3545IUD-1#PBF

LTC3545IUD-1#PBF

IC REG BUCK ADJ 800MA TRPL 16QFN

Analog Devices Inc.

256
LTC3545IUD-1#PBF

Datasheet

- 16-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 3 2.25V Buck 5.5V 0.6V 5.5V 800mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x3)
LT8301IS5#WTRMPBF

LT8301IS5#WTRMPBF

IC REG FLYBACK 1.2A TSOT23-5

Analog Devices Inc.

647
LT8301IS5#WTRMPBF

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 - 65V (Switch) 1.2A (Switch) Down to 10kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount TSOT-23-5
LT1054CSW#PBF

LT1054CSW#PBF

IC REG CHARGE PUMP ADJ/2.5V 16SO

Analog Devices Inc.

4,581
LT1054CSW#PBF

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Tube Active Ratiometric, Step-Up Positive or Negative Adjustable (Fixed) 1 3.5V Charge Pump 15V 2.5V (-Vin, 2Vin) 30V 100mA 25kHz - No - 0°C ~ 100°C (TJ) Surface Mount 16-SO
LT8630EFE#TRPBF

LT8630EFE#TRPBF

IC REG BUCK ADJ 600MA 20TSSOP

Analog Devices Inc.

4,748
LT8630EFE#TRPBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 100V 0.8V 60V 600mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
LT3688EUF#PBF

LT3688EUF#PBF

IC REG BUCK ADJ 800MA DL 24QFN

Analog Devices Inc.

182
LT3688EUF#PBF

Datasheet

- 24-WFQFN 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-QFN (4x4)
LT8630EFE#PBF

LT8630EFE#PBF

IC REG BUCK ADJ 600MA 20TSSOP

Analog Devices Inc.

164
LT8630EFE#PBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 100V 0.8V 60V 600mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
LT1373CN8#PBF

LT1373CN8#PBF

IC REG BUCK BOOST ADJ 1.5A 8PDIP

Analog Devices Inc.

4,861
LT1373CN8#PBF

Datasheet

- 8-DIP (0.300", 7.62mm) 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) 1.5A (Switch) 250kHz - No - 0°C ~ 125°C (TJ) Through Hole 8-PDIP
LT1614IMS8#PBF

LT1614IMS8#PBF

IC REG CUK ADJ 750MA 8MSOP

Analog Devices Inc.

2,534
LT1614IMS8#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up, Step-Up/Step-Down Negative Adjustable 1 1V Cuk 6V -1.24V -24V 750mA (Switch) 600kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-MSOP
LT3684IMSE#PBF

LT3684IMSE#PBF

IC REG BUCK ADJ 2A 10MSOP

Analog Devices Inc.

1,309
LT3684IMSE#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 34V 1.265V 20V 2A 300kHz ~ 3MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LT1956EGN-5#TRPBF

LT1956EGN-5#TRPBF

IC REG BUCK 5V 1.5A 16SSOP

Analog Devices Inc.

9,394
LT1956EGN-5#TRPBF

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 5.5V Buck 60V 5V - 1.5A (Switch) 500kHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-SSOP
LT3681EDE#TRPBF

LT3681EDE#TRPBF

IC REG BUCK ADJ 2A 14DFN

Analog Devices Inc.

6,274
LT3681EDE#TRPBF

Datasheet

- 14-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 34V 1.265V 20V 2A 300kHz ~ 2.8MHz - No - -40°C ~ 85°C (TA) Surface Mount 14-DFN (4x3)
LT3433EFE#TRPBF

LT3433EFE#TRPBF

IC REG BCK BST ADJ 500MA 16TSSOP

Analog Devices Inc.

4,551
LT3433EFE#TRPBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 4V Buck-Boost 60V 3.3V 20V 500mA (Switch) 200kHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LTC3569IUD#PBF

LTC3569IUD#PBF

IC REG BUCK ADJ TRPL 20QFN

Analog Devices Inc.

202
LTC3569IUD#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 3 2.5V Buck 5.5V 0.425V 5.5V 600mA, 1.2A 2.25MHz, 1MHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x3)
LT3975HMSE#PBF

LT3975HMSE#PBF

IC REG BUCK ADJ 2.5A 16MSOP

Analog Devices Inc.

118
LT3975HMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.3V Buck 42V 1.197V 40.74V 2.5A 200kHz ~ 2.25MHz - No - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
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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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