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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
LTC1044AIS8#TRPBF

LTC1044AIS8#TRPBF

IC REG CHARGE PUMP INV 20MA 8SO

Analog Devices Inc.

3,580
LTC1044AIS8#TRPBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 12V -Vin, 2Vin, Vin/2 - 20mA 1kHz ~ 5kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LT1300CS8#PBF

LT1300CS8#PBF

IC REG BUCK BOOST PROG 220MA 8SO

Analog Devices Inc.

297
LT1300CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up, Step-Up/Step-Down Positive Programmable 1 1.8V Boost, Buck-Boost 10V 3.3V, 5V - 220mA 155kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SO
LTC3106IUDC#PBF

LTC3106IUDC#PBF

IC REG BUCK BST PROG 300MA 20QFN

Analog Devices Inc.

792
LTC3106IUDC#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Up/Step-Down Positive Programmable 1 0.85V Buck-Boost 6V 1.8V, 2.2V, 3.3V, 5V - 300mA - - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LT1172CT#PBF

LT1172CT#PBF

IC REG BCK BST ADJ 1.25A TO220-5

Analog Devices Inc.

233
LT1172CT#PBF

Datasheet

- TO-220-5 Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 3V Buck, Boost, Cuk, Flyback, Forward Converter 40V 1.244V 65V (Switch) 1.25A (Switch) 100kHz - No - 0°C ~ 100°C (TJ) Through Hole TO-220-5
LTC3624IDD#TRPBF

LTC3624IDD#TRPBF

IC REG BUCK ADJ 2A 8DFN

Analog Devices Inc.

3,587
LTC3624IDD#TRPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 17V 0.6V 17V 2A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (3x3)
LT1377CS8#PBF

LT1377CS8#PBF

IC REG BUCK BOOST ADJ 1.5A 8SO

Analog Devices Inc.

3,222
LT1377CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative Adjustable 1 2.7V Buck, Boost, Cuk, Flyback, Forward Converter, SEPIC 30V 1.245V 35V (Switch) 1.5A (Switch) 1MHz - No - 0°C ~ 125°C (TJ) Surface Mount 8-SO
LTC3407EDD-2#PBF

LTC3407EDD-2#PBF

IC REG BUCK ADJ 800MA DL 10DFN

Analog Devices Inc.

1,749
LTC3407EDD-2#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.5V Buck 5.5V 0.6V 5V 800mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LTC3355EUF#PBF

LTC3355EUF#PBF

IC REG BUCK ADJ 1A 20QFN

Analog Devices Inc.

1,652
LTC3355EUF#PBF

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 20V 2.7V 5V 1A 1MHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (4x4)
LTC3612EFE#PBF

LTC3612EFE#PBF

IC REG BUCK ADJ 3A 20TSSOP

Analog Devices Inc.

571
LTC3612EFE#PBF

Datasheet

- 20-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.25V Buck 5.5V 0.6V 5.5V 3A 300kHz ~ 4MHz - Yes - -55°C ~ 150°C (TJ) Surface Mount 20-TSSOP-EP
LT3695EMSE#PBF

LT3695EMSE#PBF

IC REG BUCK ADJ 1A 16MSOP

Analog Devices Inc.

369
LT3695EMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.8V 20V 1A 250kHz ~ 2.2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LTC3604EMSE#PBF

LTC3604EMSE#PBF

IC REG BUCK ADJ 2.5A 16MSOP

Analog Devices Inc.

278
LTC3604EMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 15V 0.6V 14.52V 2.5A 2MHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LTC3246EMSE#PBF

LTC3246EMSE#PBF

IC REG CHG PUMP ADJ 500MA 16MSOP

Analog Devices Inc.

3,893
LTC3246EMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable (Programmable) 1 2.7V Charge Pump 38V 2.5V (3.3V, 5V) 5V 500mA 450kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LT1026IS8#PBF

LT1026IS8#PBF

IC REG CHRG PUMP INV 15MA DL 8SO

Analog Devices Inc.

1,856
LT1026IS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive or Negative Fixed 2 4V Charge Pump 10V -Vin, 2Vin - 15mA - - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LTC3536IMSE#PBF

LTC3536IMSE#PBF

IC REG BUCK BOOST ADJ 1A 12MSOP

Analog Devices Inc.

3,814
LTC3536IMSE#PBF

Datasheet

- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 1.8V 5.5V 1A 300kHz ~ 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-MSOP-EP
LTC3546IUFD#PBF

LTC3546IUFD#PBF

IC REG BUCK ADJ 1A/2A DL 28QFN

Analog Devices Inc.

5,441
LTC3546IUFD#PBF

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.3V Buck 5.5V 0.6V 5V 1A, 2A 2.25MHz, 750kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LTC3124EFE#PBF

LTC3124EFE#PBF

IC REG BOOST ADJ 2.5A 16TSSOP

Analog Devices Inc.

191
LTC3124EFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Up Positive Adjustable 1 1.8V Boost 5.5V 2.5V 15V 2.5A (Switch) 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT3575IFE#TRPBF

LT3575IFE#TRPBF

IC REG FLYBACK 2.5A 16TSSOP

Analog Devices Inc.

5,596
LT3575IFE#TRPBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive or Negative, Isolation Capable - 1 3V Flyback 40V - - 2.5A 40kHz ~ 1MHz - No - -40°C ~ 125°C (TA) Surface Mount 16-TSSOP-EP
LT3991IMSE#TRPBF

LT3991IMSE#TRPBF

IC REG BUCK ADJ 1.2A 10MSOP

Analog Devices Inc.

2,242
LT3991IMSE#TRPBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.3V Buck 55V 1.19V 30V 1.2A 200kHz ~ 2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LTC3310SIV#TRMPBF

LTC3310SIV#TRMPBF

IC REG BUCK ADJ 10A 18LQFN

Analog Devices Inc.

1,055
LTC3310SIV#TRMPBF

Datasheet

Silent Switcher®2 18-TFQFN Exposed Pad Tape & Reel (TR) 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)
LT3511IMS#PBF

LT3511IMS#PBF

IC REG FLYBACK 240MA 16MSOP

Analog Devices Inc.

107
LT3511IMS#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width), 12 Leads Tube Active Step-Up/Step-Down Positive or Negative, Isolation Capable - 1 4.5V Flyback 100V - - 240mA 40kHz ~ 650kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP
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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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