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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
LTC3406ES5-1.8#TRPBF

LTC3406ES5-1.8#TRPBF

IC REG BUCK 1.8V 600MA TSOT23-5

Analog Devices Inc.

3,711
LTC3406ES5-1.8#TRPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.8V - 600mA 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-5
LTC3406ES5-1.2#TRMPBF

LTC3406ES5-1.2#TRMPBF

IC REG BUCK 1.2V 600MA TSOT23-5

Analog Devices Inc.

2,591
LTC3406ES5-1.2#TRMPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.2V - 600mA 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-5
LTC3459ES6#TRPBF

LTC3459ES6#TRPBF

IC REG BOOST ADJ 60MA TSOT23-6

Analog Devices Inc.

2,292
LTC3459ES6#TRPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Up Positive Adjustable 1 1.5V Boost 5.5V 2.5V 10V (Switch) 60mA (Switch) - - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-6
LTC3459ES6#TRMPBF

LTC3459ES6#TRMPBF

IC REG BOOST ADJ 60MA TSOT23-6

Analog Devices Inc.

1,979
LTC3459ES6#TRMPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Up Positive Adjustable 1 1.5V Boost 5.5V 2.5V 10V (Switch) 60mA (Switch) - - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-6
LTC3406BES5-1.5#TRMPBF

LTC3406BES5-1.5#TRMPBF

IC REG BUCK 1.5V 600MA TSOT23-5

Analog Devices Inc.

1,663
LTC3406BES5-1.5#TRMPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.5V - 600mA 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-5
LTC3560IS6#TRMPBF

LTC3560IS6#TRMPBF

IC REG BUCK ADJ 800MA TSOT23-6

Analog Devices Inc.

1,003
LTC3560IS6#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 ~ 125°C (TJ) Surface Mount TSOT-23-6
LTC3406BES5-1.2#TRMPBF

LTC3406BES5-1.2#TRMPBF

IC REG BUCK 1.2V 600MA TSOT23-5

Analog Devices Inc.

878
LTC3406BES5-1.2#TRMPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.2V - 600mA 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-5
LTC3406ES5-1.5#TRMPBF

LTC3406ES5-1.5#TRMPBF

IC REG BUCK 1.5V 600MA TSOT23-5

Analog Devices Inc.

466
LTC3406ES5-1.5#TRMPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.5V - 600mA 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount TSOT-23-5
FAN65005A

FAN65005A

IC REG BUCK ADJ 8A 35PQFN

onsemi

2,517
FAN65005A

Datasheet

- 35-PowerWFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 65V 0.6V 32.5V 8A 100kHz ~ 1MHz - No - -40°C ~ 125°C (TA) Surface Mount 35-PQFN (6x6)
MAX680CPA+

MAX680CPA+

IC REG CHARGE PUMP 2VIN DL 8PDIP

Analog Devices Inc./Maxim Integrated

130
MAX680CPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Ratiometric Positive and Negative (Dual Rail) Fixed 2 2V Charge Pump 6V ±2Vin - 10mA 8kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
MAX5035DASA+

MAX5035DASA+

IC REG BUCK ADJ 1A 8SOIC

Analog Devices Inc./Maxim Integrated

1,721
MAX5035DASA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 7.5V Buck 76V 1.25V 13.2V 1A 125kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LTC3203EDD-1#TRPBF

LTC3203EDD-1#TRPBF

IC REG CHG PUMP PROG 500MA 10DFN

Analog Devices Inc.

4,449
LTC3203EDD-1#TRPBF

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Programmable 1 2.7V Charge Pump 5.5V 4.5V, 5V - 500mA 900kHz, 1MHz - No - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LTC3203BEDD-1#PBF

LTC3203BEDD-1#PBF

IC REG CHG PUMP PROG 500MA 10DFN

Analog Devices Inc.

401
LTC3203BEDD-1#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Up Positive Programmable 1 2.7V Charge Pump 5.5V 4.5V, 5V - 500mA 900kHz, 1MHz - No - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LTC1261CS8#PBF

LTC1261CS8#PBF

IC REG CHARGE PUMP ADJ 12MA 8SO

Analog Devices Inc.

6,743
LTC1261CS8#PBF

Datasheet

- 8-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 8-SO
LT8640AJUDCM#TRPBF

LT8640AJUDCM#TRPBF

IC REG BUCK ADJ 5A 20QFN

Analog Devices Inc.

1,947
LT8640AJUDCM#TRPBF

Datasheet

Silent Switcher®1 20-WFQFN Exposed Pad, 18 Leads Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.9V Buck 42V 0.97V 41.58V 5A 200kHz ~ 3MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 20-QFN (3x4)
LT8608HMSE#PBF

LT8608HMSE#PBF

IC REG BUCK ADJ 1.5A 10MSOP

Analog Devices Inc.

1,528
LT8608HMSE#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 ~ 150°C (TJ) Surface Mount 10-MSOP-EP
LTC1261CS8-4.5#PBF

LTC1261CS8-4.5#PBF

IC REG CHARG PUMP -4.5V 12MA 8SO

Analog Devices Inc.

2,271
LTC1261CS8-4.5#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up/Step-Down Negative Fixed 1 3V Charge Pump 8V -4.5V - 12mA 550kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SO
LT8640AJUDCM#PBF

LT8640AJUDCM#PBF

IC REG BUCK ADJ 5A 20QFN

Analog Devices Inc.

2,450
LT8640AJUDCM#PBF

Datasheet

Silent Switcher®1 20-WFQFN Exposed Pad, 18 Leads Tray Active Step-Down Positive Adjustable 1 2.9V Buck 42V 0.97V 41.58V 5A 200kHz ~ 3MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 20-QFN (3x4)
MAX5035BASA+

MAX5035BASA+

IC REG BUCK 5V 1A 8SOIC

Analog Devices Inc./Maxim Integrated

572
MAX5035BASA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 7.5V Buck 76V 5V - 1A 125kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LT8619IMSE#PBF

LT8619IMSE#PBF

IC REG BUCK ADJ 1.2A 16MSOP

Analog Devices Inc.

4,570
LT8619IMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 60V 0.8V 59.4V 1.2A 300kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-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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