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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
MAX640ESA+

MAX640ESA+

IC REG BUCK ADJ/1.3V 225MA 8SOIC

Analog Devices Inc./Maxim Integrated

235
MAX640ESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable (Fixed) 1 4V Buck 11.5V 1.3V (3.3V) 11.5V 225mA - - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LTC3615IUF#TRPBF

LTC3615IUF#TRPBF

IC REG BUCK ADJ 3A DL 24QFN

Analog Devices Inc.

4,757
LTC3615IUF#TRPBF

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 2.25V Buck 5.5V 0.6V 5.5V 3A 400kHz ~ 4MHz - Yes - -55°C ~ 150°C (TJ) Surface Mount 24-QFN (4x4)
LTC1174CS8#PBF

LTC1174CS8#PBF

IC REG BUCK BOOST ADJ 8SO

Analog Devices Inc.

205
LTC1174CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 4V Buck, Buck-Boost 13.5V 1.25V 13V 340mA, 600mA 200kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SO
MAX1705EEE+T

MAX1705EEE+T

IC REG BOOST ADJ 1A 16QSOP

Analog Devices Inc./Maxim Integrated

1,933
MAX1705EEE+T

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.9V Boost 5.5V 2.5V 5.5V 1A (Switch) 260kHz ~ 340kHz - No - -40°C ~ 85°C (TA) Surface Mount 16-QSOP
LTC3815EUFE#PBF

LTC3815EUFE#PBF

IC REG BUCK PROG 6A 38QFN

Analog Devices Inc.

1,245
LTC3815EUFE#PBF

Datasheet

- 38-WFQFN Exposed Pad Tube Active Step-Down Positive Programmable 1 2.25V Buck 5.5V 0.4V 3.96V 6A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 38-QFN (4x6)
LTC3412AIFE#PBF

LTC3412AIFE#PBF

IC REG BUCK ADJ 3A 16TSSOP

Analog Devices Inc.

2,374
LTC3412AIFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.8V 5V 3A 300kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT3693IMSE#PBF

LT3693IMSE#PBF

IC REG BUCK ADJ 3.5A 10MSOP

Analog Devices Inc.

195
LT3693IMSE#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
MAX643AESA+

MAX643AESA+

IC REG BST ADJ/1.31V 450MA 8SOIC

Analog Devices Inc./Maxim Integrated

850
MAX643AESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up Positive Adjustable (Fixed) 1 2V Boost 16.5V 1.31V (15V) 18V (Switch) 450mA (Switch) 50kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LT1766HFE#PBF

LT1766HFE#PBF

IC REG BUCK ADJ 1.5A 16TSSOP

Analog Devices Inc.

1,250
LT1766HFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 5.5V Buck 60V 1.2V 57.6V 1.5A 200kHz - No - -40°C ~ 140°C (TJ) Surface Mount 16-TSSOP-EP
LT1425IS#PBF

LT1425IS#PBF

IC REG FLYBACK 135MA 16SO

Analog Devices Inc.

873
LT1425IS#PBF

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tube Active Step-Up/Step-Down Positive or Negative, Isolation Capable - 1 2.8V Flyback 20V - - 135mA (Switch) 285kHz - No - -40°C ~ 100°C (TJ) Surface Mount 16-SO
LT8640IUDC-1#PBF

LT8640IUDC-1#PBF

IC REG BUCK ADJ 5A 20QFN

Analog Devices Inc.

4,913
LT8640IUDC-1#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)
LT8616IFE#TRPBF

LT8616IFE#TRPBF

IC REG BUCK ADJ DL 28TSSOP

Analog Devices Inc.

1,528
LT8616IFE#TRPBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 3.4V Buck 42V 0.79V 41.8V 1.5A, 2.5A 200kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-TSSOP-EP
LTC3636IUFD#PBF

LTC3636IUFD#PBF

IC REG BUCK ADJ 6A DL 28QFN

Analog Devices Inc.

1,140
LTC3636IUFD#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.1V Buck 20V 0.6V 5V 6A Adjustable - No - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
MAX15020ATP+T

MAX15020ATP+T

IC REG BUCK ADJ 2A 20TQFN

Analog Devices Inc./Maxim Integrated

169
MAX15020ATP+T

Datasheet

- 20-WQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7.5V Buck 40V 0.5V 36V 2A 300kHz ~ 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-TQFN (5x5)
LT1765EFE-3.3#PBF

LT1765EFE-3.3#PBF

IC REG BUCK 3.3V 3A 16TSSOP

Analog Devices Inc.

836
LT1765EFE-3.3#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 3V Buck 25V 3.3V - 3A 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT1765EFE#PBF

LT1765EFE#PBF

IC REG BUCK ADJ 3A 16TSSOP

Analog Devices Inc.

794
LT1765EFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 25V 1.2V 22.5V 3A 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT1765EFE-5#PBF

LT1765EFE-5#PBF

IC REG BUCK 5V 3A 16TSSOP

Analog Devices Inc.

285
LT1765EFE-5#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 3V Buck 25V 5V - 3A 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT8652SIV#TRPBF

LT8652SIV#TRPBF

IC REG BUCK 1V/3.3V DL 36LQFN

Analog Devices Inc.

2,563
LT8652SIV#TRPBF

Datasheet

Silent Switcher®2 36-TFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 2 3V Buck 18V 1V, 3.3V - 8.5A, 8.5A 300kHz ~ 3MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 36-LQFN (4x7)
LTC3633IFE#PBF

LTC3633IFE#PBF

IC REG BUCK ADJ 3A DL 28TSSOP

Analog Devices Inc.

1,302
LTC3633IFE#PBF

Datasheet

- 28-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.6V Buck 15V 0.6V 14.7V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-TSSOP-EP
LT8652SIV#PBF

LT8652SIV#PBF

IC REG BUCK 0.6V DL 36LQFN

Analog Devices Inc.

348
LT8652SIV#PBF

Datasheet

Silent Switcher®2 36-TFQFN Exposed Pad Tray Active Step-Down Positive Fixed 2 3V Buck 18V 0.6V - 8.5A, 8.5A 300kHz ~ 3MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 36-LQFN (4x7)
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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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