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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
LM2576HVS-ADJ/NOPB

LM2576HVS-ADJ/NOPB

IC REG BUCK ADJ 3A TO263

Texas Instruments

802
LM2576HVS-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Down Positive Adjustable 1 4V Buck 60V 1.23V 57V 3A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
LM2576HVS-12/NOPB

LM2576HVS-12/NOPB

IC REG BUCK 12V 3A TO263

Texas Instruments

403
LM2576HVS-12/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Down Positive Fixed 1 4V Buck 60V 12V - 3A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
LTC1682IS8-5#PBF

LTC1682IS8-5#PBF

IC REG CHARGE PUMP 5V 50MA 8SO

Analog Devices Inc.

400
LTC1682IS8-5#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up Positive Fixed 1 1.8V Charge Pump 4.4V 5V - 50mA 550kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
MAX1673ESA+T

MAX1673ESA+T

IC REG CHRG PUMP ADJ 125MA 8SOIC

Analog Devices Inc./Maxim Integrated

4,846
MAX1673ESA+T

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Negative Adjustable 1 2V Charge Pump 5.5V -1.5V -5.5V 125mA 350kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
SI7661CSA+

SI7661CSA+

IC REG CHARG PUMP INV 20MA 8SOIC

Analog Devices Inc./Maxim Integrated

911
SI7661CSA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive or Negative Fixed 1 4.5V Charge Pump 20V -Vin, 2Vin - 20mA 10kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SOIC
LTC3632EMS8E#TRPBF

LTC3632EMS8E#TRPBF

IC REG BUCK ADJ 20MA 8MSOP

Analog Devices Inc.

10,648
LTC3632EMS8E#TRPBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive or Negative Adjustable 1 4.5V Buck 50V 0.8V 50V 20mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LTC3103EDD#TRPBF

LTC3103EDD#TRPBF

IC REG BUCK ADJ 300MA 10DFN

Analog Devices Inc.

2,384
LTC3103EDD#TRPBF

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) 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)
LT3581EDE#PBF

LT3581EDE#PBF

IC REG BST CHARGE PUMP ADJ 14DFN

Analog Devices Inc.

252
LT3581EDE#PBF

Datasheet

- 14-WFDFN Exposed Pad Tube 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)
LT1934ES6#TRMPBF

LT1934ES6#TRMPBF

IC REG BUCK ADJ 300MA TSOT23-6

Analog Devices Inc.

18,594
LT1934ES6#TRMPBF

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 300mA - - No - 0°C ~ 85°C (TA) Surface Mount TSOT-23-6
MAX17576ATG+T

MAX17576ATG+T

IC REG BUCK ADJ 4A 24TQFN

Analog Devices Inc./Maxim Integrated

2,335
MAX17576ATG+T

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) 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 24-TQFN (4x5)
LT1934ES6#TRPBF

LT1934ES6#TRPBF

IC REG BUCK ADJ 300MA TSOT23-6

Analog Devices Inc.

1,637
LT1934ES6#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 300mA - - No - 0°C ~ 85°C (TA) Surface Mount TSOT-23-6
MAX17576ATG+

MAX17576ATG+

IC REG BUCK ADJ 4A 24TQFN

Analog Devices Inc./Maxim Integrated

465
MAX17576ATG+

Datasheet

- 24-WFQFN 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 24-TQFN (4x5)
LTC3130EUDC#PBF

LTC3130EUDC#PBF

IC REG BUCK BST ADJ 600MA 20QFN

Analog Devices Inc.

6,189
LTC3130EUDC#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 2.4V Buck-Boost 25V 1V 25V 600mA 1.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LT1933IS6#TRMPBF

LT1933IS6#TRMPBF

IC REG BUCK ADJ 600MA TSOT23-6

Analog Devices Inc.

5,315
LT1933IS6#TRMPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 36V 1.245V 33.84V 600mA 500kHz - No - -40°C ~ 125°C (TA) Surface Mount TSOT-23-6
MAX1673ESA+

MAX1673ESA+

IC REG CHRG PUMP ADJ 125MA 8SOIC

Analog Devices Inc./Maxim Integrated

3,028
MAX1673ESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Negative Adjustable 1 2V Charge Pump 5.5V -1.5V -5.5V 125mA 350kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LT3999IDD#PBF

LT3999IDD#PBF

IC REG PUSH-PULL ADJ 1A 10DFN

Analog Devices Inc.

4,126
LT3999IDD#PBF

Datasheet

- 10-WFDFN 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-DFN (3x3)
MAX680CSA+T

MAX680CSA+T

IC REG CHARGE PUMP 2VIN DL 8SOIC

Analog Devices Inc./Maxim Integrated

12,091
MAX680CSA+T

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Ratiometric Positive and Negative (Dual Rail) Fixed 2 2V Charge Pump 6V ±2Vin - 10mA 8kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SOIC
MPQ4470AGL-P

MPQ4470AGL-P

IC REG BUCK ADJ 5A 20QFN

Monolithic Power Systems Inc.

1,671
MPQ4470AGL-P

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 36V 0.8V 32.4V 5A 100kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LT8608IMSE#PBF

LT8608IMSE#PBF

IC REG BUCK ADJ 1.5A 10MSOP

Analog Devices Inc.

6,221
LT8608IMSE#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 42V 0.778V 42V 1.5A 200kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LT8608IMSE#TRPBF

LT8608IMSE#TRPBF

IC REG BUCK ADJ 1.5A 10MSOP

Analog Devices Inc.

5,221
LT8608IMSE#TRPBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 42V 0.778V 42V 1.5A 200kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
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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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