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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
LT3573IMSE#TRPBF

LT3573IMSE#TRPBF

IC REG FLYBACK 1.25A 16MSOP

Analog Devices Inc.

3,123
LT3573IMSE#TRPBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive or Negative, Isolation Capable - 1 3V Flyback 40V - - 1.25A 40kHz ~ 1MHz - No - -40°C ~ 125°C (TA) Surface Mount 16-MSOP-EP
LTC3633AEUFD-2#PBF

LTC3633AEUFD-2#PBF

IC REG BUCK ADJ 3A DL 28QFN

Analog Devices Inc.

542
LTC3633AEUFD-2#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 3.6V Buck 20V 0.6V 6V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LT8303ES5#TRMPBF

LT8303ES5#TRMPBF

IC REG FLYBCK ADJ 450MA TSOT23-5

Analog Devices Inc.

1,061
LT8303ES5#TRMPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Up/Step-Down Positive, Isolation Capable Adjustable 1 5.5V Flyback 100V - - 450mA 7kHz ~ 350kHz - No - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-5
LTC3646IMSE#PBF

LTC3646IMSE#PBF

IC REG BUCK ADJ 1A 16MSOP

Analog Devices Inc.

558
LTC3646IMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 40V 2V 30V 1A 200kHz ~ 3MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LTC3646IMSE-1#PBF

LTC3646IMSE-1#PBF

IC REG BUCK ADJ 1A 16MSOP

Analog Devices Inc.

445
LTC3646IMSE-1#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 40V 0.6V 15V 1A 200kHz ~ 3MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LT3973IMSE-5#PBF

LT3973IMSE-5#PBF

IC REG BUCK 5V 750MA 10MSOP

Analog Devices Inc.

407
LT3973IMSE-5#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 4.2V Buck 42V 5V - 750mA 195kHz ~ 2.15MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LT8494IUF#PBF

LT8494IUF#PBF

IC REG BST CHARGE PUMP ADJ 20QFN

Analog Devices Inc.

369
LT8494IUF#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 1V Boost, Charge Pump, Flyback, SEPIC 60V 1.202V 70V (Switch) 2A 250kHz ~ 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (4x4)
LT3990HMSE#PBF

LT3990HMSE#PBF

IC REG BUCK ADJ 350MA 16MSOP

Analog Devices Inc.

243
LT3990HMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.2V Buck 62V 1.21V 25V 350mA 210kHz ~ 2.3MHz - No - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LTC3534EDHC#TRPBF

LTC3534EDHC#TRPBF

IC REG BUCK BST ADJ 500MA 16DFN

Analog Devices Inc.

6,045
LTC3534EDHC#TRPBF

Datasheet

- 16-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.4V Buck-Boost 7V 1.8V 7V 500mA 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-DFN (5x3)
LTC1261CS#PBF

LTC1261CS#PBF

IC REG CHARGE PUMP ADJ 12MA 14SO

Analog Devices Inc.

230
LTC1261CS#PBF

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Active Step-Up/Step-Down Negative Adjustable 1 3V Charge Pump 8V -1.25V -8V 12mA 550kHz - No - 0°C ~ 70°C (TA) Surface Mount 14-SO
LM2588T-ADJ/NOPB

LM2588T-ADJ/NOPB

IC REG BST FLYBCK ADJ 5A TO220-7

Texas Instruments

320
LM2588T-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-7 Formed Leads Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 4V Boost, Flyback, Forward Converter 40V 1.23V 60V 5A (Switch) 100kHz ~ 200kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-7
LT3470AHDDB#TRMPBF

LT3470AHDDB#TRMPBF

IC REG BUCK ADJ 250MA 8DFN

Analog Devices Inc.

449
LT3470AHDDB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 40V 1.25V 16V 250mA - - No - -40°C ~ 150°C (TJ) Surface Mount 8-DFN (3x2)
LT1767EMS8E-5#TRPBF

LT1767EMS8E-5#TRPBF

IC REG BUCK SEPIC 5V 1.5A 8MSOP

Analog Devices Inc.

3,104
LT1767EMS8E-5#TRPBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck, SEPIC 25V 5V - 1.5A 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
MAX1974EUB+T

MAX1974EUB+T

IC REG BUCK ADJ 1A 10UMAX

Analog Devices Inc./Maxim Integrated

2,980
MAX1974EUB+T

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable (Programmable) 1 2.6V Buck 5.5V 0.75V (1V, 1.5V) 5.5V 1A 1.4MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-uMAX/uSOP
MAX1692EUB+

MAX1692EUB+

IC REG BUCK ADJ 600MA 10UMAX

Analog Devices Inc./Maxim Integrated

965
MAX1692EUB+

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 2.7V Buck 5.5V 1.25V 5.5V 600mA 750kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-uMAX/uSOP
LT1767EMS8E-5#PBF

LT1767EMS8E-5#PBF

IC REG BUCK SEPIC 5V 1.5A 8MSOP

Analog Devices Inc.

328
LT1767EMS8E-5#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 3V Buck, SEPIC 25V 5V - 1.5A 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LT1767EMS8E#PBF

LT1767EMS8E#PBF

IC REG BUCK SEPIC ADJ 1.5A 8MSOP

Analog Devices Inc.

278
LT1767EMS8E#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck, SEPIC 25V 1.2V 22.5V 1.5A 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LT3493IDCB#TRPBF

LT3493IDCB#TRPBF

IC REG BUCK ADJ 1.2A 6DFN

Analog Devices Inc.

5,702
LT3493IDCB#TRPBF

Datasheet

- 6-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.78V 34.2V 1.2A 750kHz - No - -40°C ~ 125°C (TJ) Surface Mount 6-DFN (2x3)
LTC3630EDHC#PBF

LTC3630EDHC#PBF

IC REG BUCK ADJ 500MA 16DFN

Analog Devices Inc.

2,673
LTC3630EDHC#PBF

Datasheet

- 16-WFDFN 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-DFN (5x3)
LTC3310SIV#PBF

LTC3310SIV#PBF

IC REG BUCK ADJ 10A 18LQFN

Analog Devices Inc.

1,343
LTC3310SIV#PBF

Datasheet

Silent Switcher®2 18-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.5V 5.5V 10A 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 18-LQFN (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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