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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
LTC3621EMS8E#PBF

LTC3621EMS8E#PBF

IC REG BUCK ADJ 1A 8MSOP

Analog Devices Inc.

8,207
LTC3621EMS8E#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.7V Buck 17V 0.6V 17V 1A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LT1961EMS8E#TRPBF

LT1961EMS8E#TRPBF

IC REG BST FLYBCK ADJ 1.5A 8MSOP

Analog Devices Inc.

4,647
LT1961EMS8E#TRPBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 3V Boost, Flyback, SEPIC 25V 1.2V 35V (Switch) 1.5A (Switch) 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LT1961EMS8E#PBF

LT1961EMS8E#PBF

IC REG BST FLYBCK ADJ 1.5A 8MSOP

Analog Devices Inc.

4,259
LT1961EMS8E#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 3V Boost, Flyback, SEPIC 25V 1.2V 35V (Switch) 1.5A (Switch) 1.25MHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
TDM3885XUMA1

TDM3885XUMA1

IC REG BUCK ADJ 4A LGA-15-1

Infineon Technologies

3,445
TDM3885XUMA1

Datasheet

- 15-FLGA Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.7V Buck 14V 0.5V 5V 4A 600kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount PG-LGA-15-1
LTC3200EMS8#TRPBF

LTC3200EMS8#TRPBF

IC REG CHRG PUMP ADJ 100MA 8MSOP

Analog Devices Inc.

7,852
LTC3200EMS8#TRPBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Up Positive Adjustable 1 2.7V Charge Pump 4.5V 2.7V 9V 100mA 2MHz - No - -40°C ~ 85°C (TA) Surface Mount 8-MSOP
LTC3560ES6#TRMPBF

LTC3560ES6#TRMPBF

IC REG BUCK ADJ 800MA TSOT23-6

Analog Devices Inc.

6,023
LTC3560ES6#TRMPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5.5V 800mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-6
LTC3560ES6#TRPBF

LTC3560ES6#TRPBF

IC REG BUCK ADJ 800MA TSOT23-6

Analog Devices Inc.

3,072
LTC3560ES6#TRPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5.5V 800mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-6
LTC3525LESC6-3#TRMPBF

LTC3525LESC6-3#TRMPBF

IC REG BOOST 3V 160MA SC70-6

Analog Devices Inc.

1,360
LTC3525LESC6-3#TRMPBF

Datasheet

- 6-TSSOP, SC-88, SOT-363 Tape & Reel (TR) Active Step-Up Positive Fixed 1 0.5V Boost 4.5V 3V - 160mA - - Yes - -40°C ~ 85°C (TA) Surface Mount SC-70-6
LT3001ES5#TRMPBF

LT3001ES5#TRMPBF

IC REG FLYBACK 5V 1.2A TSOT23-5

Analog Devices Inc.

1,005
LT3001ES5#TRMPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Up/Step-Down Positive Fixed 1 4V Flyback 36V 5V - 1.2A 10kHz - No - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-5
LM5576MH/NOPB

LM5576MH/NOPB

IC REG BUCK ADJ 3A 20HTSSOP

Texas Instruments

2,279
LM5576MH/NOPB

Datasheet

SIMPLE SWITCHER® 20-PowerTSSOP (0.173", 4.40mm Width) Tube Active Step-Down Positive Adjustable 1 6V Buck 75V 1.225V 70V 3A 50kHz ~ 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-HTSSOP
BD9G500EFJ-LAE2

BD9G500EFJ-LAE2

IC REG BUCK ADJ 5A 8HTSOP-J

Rohm Semiconductor

4,641
BD9G500EFJ-LAE2

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7V Buck 76V 1V 73.72V 5A 100kHz ~ 650kHz - No - -40°C ~ 125°C Surface Mount 8-HTSOP-J
LM2679S-5.0/NOPB

LM2679S-5.0/NOPB

IC REG BUCK 5V 5A TO263

Texas Instruments

491
LM2679S-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-8, D2PAK (7 Leads + Tab), TO-263CA Tube Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 5A 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-7)
MAX20006AFOD/VY+T

MAX20006AFOD/VY+T

IC REG BUCK 3.3V 6A 17FC2QFN

Analog Devices Inc./Maxim Integrated

4,074
MAX20006AFOD/VY+T

Datasheet

- 17-PowerWFQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 36V 3.3V - 6A 220kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C Surface Mount, Wettable Flank 17-FC2QFN (3.5x3.75)
TPS54020RUWR

TPS54020RUWR

IC REG BUCK ADJ 10A 15VQFN

Texas Instruments

6,894
TPS54020RUWR

Datasheet

SWIFT™, Eco-Mode™ 15-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 17V 0.6V 5V 10A 200kHz ~ 1.2MHz - Yes - -40°C ~ 150°C (TA) Surface Mount 15-VQFN-HR (3.5x3.5)
LTC3547EDDB#TRMPBF

LTC3547EDDB#TRMPBF

IC REG BUCK ADJ 300MA DL 8DFN

Analog Devices Inc.

6,297
LTC3547EDDB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 2.5V Buck 5.5V 0.6V 5.5V 300mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-DFN (3x2)
LT3502AEDC#TRMPBF

LT3502AEDC#TRMPBF

IC REG BUCK ADJ 500MA 8DFN

Analog Devices Inc.

3,662
LT3502AEDC#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 40V 0.8V 32V 500mA 2.25MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (2x2)
MAX5035BUSA+T

MAX5035BUSA+T

IC REG BUCK 5V 1A 8SOIC

Analog Devices Inc./Maxim Integrated

3,446
MAX5035BUSA+T

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 7.5V Buck 76V 5V - 1A 125kHz - No - 0°C ~ 85°C (TA) Surface Mount 8-SOIC
LT3502AEDC#TRPBF

LT3502AEDC#TRPBF

IC REG BUCK ADJ 500MA 8DFN

Analog Devices Inc.

3,266
LT3502AEDC#TRPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 40V 0.8V 32V 500mA 2.25MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (2x2)
LTC3528EDDB#TRMPBF

LTC3528EDDB#TRMPBF

IC REG BOOST ADJ 1A 8DFN

Analog Devices Inc.

2,330
LTC3528EDDB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.88V Boost 5.25V 1.6V 5.25V 1A (Switch) 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (3x2)
LTC3531EDD#TRPBF

LTC3531EDD#TRPBF

IC REG BUCK BOOST ADJ 200MA 8DFN

Analog Devices Inc.

5,789
LTC3531EDD#TRPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 2V 5V 200mA - - Yes - -40°C ~ 85°C (TA) Surface Mount 8-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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