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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
TPS544B20RVFR

TPS544B20RVFR

IC REG BUCK ADJ 20A 40LQFN

Texas Instruments

4,984
TPS544B20RVFR

Datasheet

SWIFT™, D-CAP™, D-CAP2™ 40-PowerLFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 18V 0.6V 5.5V 20A Selectable - Yes - -40°C ~ 125°C (TJ) Surface Mount 40-LQFN-CLIP (7x5)
LT3991IMSE-5#PBF

LT3991IMSE-5#PBF

IC REG BUCK 5V 1.2A 10MSOP

Analog Devices Inc.

518
LT3991IMSE-5#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 4.3V Buck 55V 5V - 1.2A 200kHz ~ 2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LT8364HDE#PBF

LT8364HDE#PBF

IC REG BOOST SEPIC 4A 12DFN

Analog Devices Inc.

278
LT8364HDE#PBF

Datasheet

- 12-WFDFN Exposed Pad Tube Active Step-Up Positive Fixed 1 2.8V Boost, SEPIC 60V - 60V (Switch) 4A (Switch) 2MHz - - - -40°C ~ 150°C (TJ) Surface Mount 12-DFN (4x3)
LT8361HMSE#PBF

LT8361HMSE#PBF

IC REG BST SEPIC ADJ 2A 16MSOP

Analog Devices Inc.

3,860
LT8361HMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad Tube Active Step-Up Positive Adjustable 1 2.8V Boost, SEPIC 60V - 100V (Switch) 2A (Switch) 300kHz ~ 2MHz - - - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LTC3409EDD#PBF

LTC3409EDD#PBF

IC REG BUCK ADJ 600MA 8DFN

Analog Devices Inc.

304
LTC3409EDD#PBF

Datasheet

- 8-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 1.6V Buck 5.5V 0.613V 5.5V 600mA 1.7MHz ~ 2.6MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-DFN (3x3)
LM2576HVS-3.3/NOPB

LM2576HVS-3.3/NOPB

IC REG BUCK 3.3V 3A TO263

Texas Instruments

111
LM2576HVS-3.3/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Down Positive Fixed 1 4V Buck 60V 3.3V - 3A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
ICL7662CBD+T

ICL7662CBD+T

IC REG CHARGE PUMP 14SOIC

Analog Devices Inc./Maxim Integrated

1,209
ICL7662CBD+T

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Ratiometric Negative Fixed 1 4.5V Charge Pump 20V -Vin - - 10kHz - No - 0°C ~ 70°C (TA) Surface Mount 14-SOIC
LT8609AEMSE16#PBF

LT8609AEMSE16#PBF

IC REG BUCK ADJ 3A 16MSOP

Analog Devices Inc.

158
LT8609AEMSE16#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 42V 0.782V 42V 3A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LT3581EDE#TRPBF

LT3581EDE#TRPBF

IC REG BST CHARGE PUMP ADJ 14DFN

Analog Devices Inc.

2,814
LT3581EDE#TRPBF

Datasheet

- 14-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up, Step-Up/Step-Down Positive or Negative Adjustable 1 2.5V Boost, Charge Pump, Cuk, Flyback, SEPIC 22V 1.215V 42V (Switch) 3.3A (Switch) 200kHz ~ 2.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 14-DFN (4x3)
LTC3103EDD#PBF

LTC3103EDD#PBF

IC REG BUCK ADJ 300MA 10DFN

Analog Devices Inc.

2,183
LTC3103EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.5V Buck 15V 0.6V 13.8V 300mA 1.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
TPS54A20RNJT

TPS54A20RNJT

IC REG BUCK ADJ 10A 20VQFN

Texas Instruments

250
TPS54A20RNJT

Datasheet

SWIFT™ 20-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 8V Buck 14V 0.5V 2V 10A Selectable - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-VQFN-HR (4x3.5)
LTC3607EMSE#PBF

LTC3607EMSE#PBF

IC REG BUCK ADJ 600MA DL 16MSOP

Analog Devices Inc.

138
LTC3607EMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 2 4.5V Buck 15V 0.6V 15V 600mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LT1934ES6-1#TRPBF

LT1934ES6-1#TRPBF

IC REG BUCK ADJ 60MA TSOT23-6

Analog Devices Inc.

3,017
LT1934ES6-1#TRPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.2V Buck 34V 1.25V 29.92V 60mA - - No - 0°C ~ 85°C (TA) Surface Mount TSOT-23-6
MAX20040BATPA/VY+T

MAX20040BATPA/VY+T

IC REG BUCK BST PROG 20TQFN

Analog Devices Inc./Maxim Integrated

1,620
MAX20040BATPA/VY+T

Datasheet

- 20-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Programmable (Fixed) 1 2V Buck-Boost 36V - 15V 1.2A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C Surface Mount, Wettable Flank 20-TQFN-EP (4x4)
LT3502IMS#PBF

LT3502IMS#PBF

IC REG BUCK ADJ 500MA 10MSOP

Analog Devices Inc.

218
LT3502IMS#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 3V Buck 40V 0.8V 36V 500mA 1.1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP
LT3571IUD#TRPBF

LT3571IUD#TRPBF

IC REG BOOST ADJ 370MA 16QFN

Analog Devices Inc.

12,439
LT3571IUD#TRPBF

Datasheet

- 16-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Adjustable 1 2.7V Boost 20V 2.7V 75V (Switch) 370mA (Switch) 250kHz ~ 2MHz - No - -40°C ~ 125°C (TA) Surface Mount 16-QFN (3x3)
LT3999IMSE#PBF

LT3999IMSE#PBF

IC REG PUSH-PULL ADJ 1A 10MSOP

Analog Devices Inc.

505
LT3999IMSE#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Up/Step-Down Positive, Isolation Capable Adjustable 1 2.7V Push-Pull 36V - - 1A 50kHz ~ 1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LT3571IUD#PBF

LT3571IUD#PBF

IC REG BOOST ADJ 370MA 16QFN

Analog Devices Inc.

240
LT3571IUD#PBF

Datasheet

- 16-WFQFN Exposed Pad Tube Active Step-Up Positive Adjustable 1 2.7V Boost 20V 2.7V 75V (Switch) 370mA (Switch) 250kHz ~ 2MHz - No - -40°C ~ 125°C (TA) Surface Mount 16-QFN (3x3)
LTC3606BIDD#PBF

LTC3606BIDD#PBF

IC REG BUCK ADJ 800MA 8DFN

Analog Devices Inc.

121
LTC3606BIDD#PBF

Datasheet

- 8-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5V 800mA 2.25MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 8-DFN (3x3)
LT8570IMS8E-1#PBF

LT8570IMS8E-1#PBF

IC REG BST CHARGE PUMP ADJ 8MSOP

Analog Devices Inc.

403
LT8570IMS8E-1#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Up, Step-Up/Step-Down Positive or Negative Adjustable 1 2.55V Boost, Charge Pump, Cuk, SEPIC 40V 0.003V, 1.204V 65V (Switch) 375mA (Switch) 200kHz ~ 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-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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