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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
LT1777CS#TRPBF

LT1777CS#TRPBF

IC REG BUCK ADJ 550MA 16SO

Analog Devices Inc.

1,509
LT1777CS#TRPBF

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7.4V Buck 48V 1.24V 30V 550mA (Switch) 100kHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-SO
LTC3630EMSE#PBF

LTC3630EMSE#PBF

IC REG BUCK ADJ 500MA 16MSOP

Analog Devices Inc.

831
LTC3630EMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad Tube Active Step-Down Positive or Negative Adjustable (Programmable) 1 4V Buck 65V 0.8V (1.8V, 3.3V, 5V) 65V 500mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LTC3569EFE#PBF

LTC3569EFE#PBF

IC REG BUCK ADJ TRPL 16TSSOP

Analog Devices Inc.

362
LTC3569EFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) 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 16-TSSOP-EP
LTC3637EDHC#PBF

LTC3637EDHC#PBF

IC REG BUCK ADJ 1A 16DFN

Analog Devices Inc.

2,463
LTC3637EDHC#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 76V 0.8V 76V 1A - - No - -40°C ~ 125°C (TJ) Surface Mount 16-DFN (5x3)
LTC1044AIS8#PBF

LTC1044AIS8#PBF

IC REG CHARGE PUMP INV 20MA 8SO

Analog Devices Inc.

720
LTC1044AIS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 12V -Vin, 2Vin, Vin/2 - 20mA 1kHz ~ 5kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LT8641EUDC#PBF

LT8641EUDC#PBF

IC REG BUCK ADJ 3.5A 20QFN

Analog Devices Inc.

9,666
LT8641EUDC#PBF

Datasheet

Silent Switcher®1 20-WFQFN, 18 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 65V 0.8V 64.35V 3.5A 210kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LT8640EUDC#PBF

LT8640EUDC#PBF

IC REG BUCK ADJ 5A 20QFN

Analog Devices Inc.

6,275
LT8640EUDC#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 ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
MAX17521ATG+T

MAX17521ATG+T

IC REG BUCK ADJ 1A DL 24TQFN

Analog Devices Inc./Maxim Integrated

2,210
MAX17521ATG+T

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 4.5V Buck 60V 0.9V 55.2V 1A 560kHz, 300kHz - Yes - -40°C ~ 125°C (TA) Surface Mount 24-TQFN (4x4)
MAX17536ATP+

MAX17536ATP+

IC REG BUCK ADJ 4A 20TQFN

Analog Devices Inc./Maxim Integrated

1,162
MAX17536ATP+

Datasheet

- 20-WQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 4.5V Buck 60V 0.9V 54V 4A 100kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 20-TQFN (5x5)
LT8620HMSE#PBF

LT8620HMSE#PBF

IC REG BUCK ADJ 2A 16MSOP

Analog Devices Inc.

2,714
LT8620HMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.4V Buck 65V 0.97V 64.75V 2A 200kHz ~ 2.2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LT3510EFE#TRPBF

LT3510EFE#TRPBF

IC REG BUCK ADJ 2A DL 20TSSOP

Analog Devices Inc.

1,680
LT3510EFE#TRPBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 3.1V Buck 25V 0.8V 23.75V 2A 250kHz ~ 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-TSSOP-EP
LTC3604EUD#TRPBF

LTC3604EUD#TRPBF

IC REG BUCK ADJ 2.5A 16QFN

Analog Devices Inc.

7,686
LTC3604EUD#TRPBF

Datasheet

- 16-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 15V 0.6V 14.52V 2.5A 2MHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x3)
LTC3604EUD#PBF

LTC3604EUD#PBF

IC REG BUCK ADJ 2.5A 16QFN

Analog Devices Inc.

4,785
LTC3604EUD#PBF

Datasheet

- 16-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 15V 0.6V 14.52V 2.5A 2MHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x3)
LTC3603EUF#TRPBF

LTC3603EUF#TRPBF

IC REG BUCK ADJ 2.5A 20QFN

Analog Devices Inc.

3,367
LTC3603EUF#TRPBF

Datasheet

- 20-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 15V 0.6V 14.5V 2.5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (4x4)
LT3481EMSE#TRPBF

LT3481EMSE#TRPBF

IC REG BUCK ADJ 2A 10MSOP

Analog Devices Inc.

2,968
LT3481EMSE#TRPBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) 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 10-MSOP-EP
LTC3355EUF#TRPBF

LTC3355EUF#TRPBF

IC REG BUCK ADJ 1A 20QFN

Analog Devices Inc.

2,757
LTC3355EUF#TRPBF

Datasheet

- 20-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 20V 2.7V 5V 1A 1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (4x4)
LTC3521EUF#TRPBF

LTC3521EUF#TRPBF

IC REG BUCK BOOST ADJ TRPL 24QFN

Analog Devices Inc.

2,621
LTC3521EUF#TRPBF

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down, Step-Up/Step-Down Positive Adjustable 3 1.8V Buck, Buck-Boost 5.5V 0.6V 5.5V 600mA, 1A 1.1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (4x4)
LTC3612EFE#TRPBF

LTC3612EFE#TRPBF

IC REG BUCK ADJ 3A 20TSSOP

Analog Devices Inc.

2,150
LTC3612EFE#TRPBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.6V 5.5V 3A 300kHz ~ 4MHz - Yes - -55°C ~ 150°C (TJ) Surface Mount 20-TSSOP-EP
LT3481EMSE#PBF

LT3481EMSE#PBF

IC REG BUCK ADJ 2A 10MSOP

Analog Devices Inc.

2,102
LT3481EMSE#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 ~ 2.8MHz - No - -40°C ~ 85°C (TA) Surface Mount 10-MSOP-EP
LT3682IDD#PBF

LT3682IDD#PBF

IC REG BUCK ADJ 1A 12DFN

Analog Devices Inc.

1,550
LT3682IDD#PBF

Datasheet

- 12-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.8V 20V 1A 250kHz ~ 2.2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 12-DFN (3x3)
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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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