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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
LT1933HS6#TRMPBF

LT1933HS6#TRMPBF

IC REG BUCK ADJ 600MA TSOT23-6

Analog Devices Inc.

991
LT1933HS6#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 ~ 150°C (TA) Surface Mount TSOT-23-6
LT1107IS8#PBF

LT1107IS8#PBF

IC REG BUCK BOOST ADJ 1.5A 8SO

Analog Devices Inc.

428
LT1107IS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up, Step-Down Positive or Negative Adjustable 1 2V Buck, Boost 30V 1.25V 50V (Switch) 1.5A (Switch) 63kHz - No - -45°C ~ 85°C (TA) Surface Mount 8-SO
LTC3530EDD#PBF

LTC3530EDD#PBF

IC REG BUCK BST ADJ 600MA 10DFN

Analog Devices Inc.

145
LTC3530EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 1.8V Buck-Boost 5.5V 1.8V 5.25V 600mA 300kHz ~ 2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
LTC3536EDD#PBF

LTC3536EDD#PBF

IC REG BUCK BOOST ADJ 1A 10DFN

Analog Devices Inc.

374
LTC3536EDD#PBF

Datasheet

- 10-WFDFN 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 10-DFN (3x3)
LT3973EDD-5#PBF

LT3973EDD-5#PBF

IC REG BUCK 5V 750MA 10DFN

Analog Devices Inc.

138
LT3973EDD-5#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Fixed 1 4.2V Buck 42V 5V - 750mA 195kHz ~ 2.15MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LT3973EDD-3.3#PBF

LT3973EDD-3.3#PBF

IC REG BUCK 3.3V 750MA 10DFN

Analog Devices Inc.

104
LT3973EDD-3.3#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Fixed 1 4.2V Buck 42V 3.3V - 750mA 195kHz ~ 2.15MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LTC3521IUF#PBF

LTC3521IUF#PBF

IC REG BUCK BOOST ADJ TRPL 24QFN

Analog Devices Inc.

1,091
LTC3521IUF#PBF

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Down, Step-Up/Step-Down Positive Adjustable 3 1.8V Buck, Buck-Boost 5.5V 0.6V 5.5V 600mA, 1A 1.1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (4x4)
LTC3312SAAV#PBF

LTC3312SAAV#PBF

IC REG BUCK ADJ 6A/6A DL 22LQFN

Analog Devices Inc.

770
LTC3312SAAV#PBF

Datasheet

- 22-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 2 2.25V Buck 5.5V 0.5V 5.5V 6A, 6A 2MHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 22-LQFN (4x3)
LTC3124IDHC#PBF

LTC3124IDHC#PBF

IC REG BOOST ADJ 2.5A 16DFN

Analog Devices Inc.

708
LTC3124IDHC#PBF

Datasheet

- 16-WFDFN 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-DFN (5x3)
LTC3622EDE-23/5#PBF

LTC3622EDE-23/5#PBF

IC REG BUCK 3.3V/5V 1A DL 14DFN

Analog Devices Inc.

319
LTC3622EDE-23/5#PBF

Datasheet

- 14-WFDFN Exposed Pad Tube Active Step-Down Positive Fixed 2 2.7V Buck 17V 3.3V, 5V - 1A 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 14-DFN (4x3)
LT3580HMS8E#TRPBF

LT3580HMS8E#TRPBF

IC REG BOOST CUK ADJ 2A 8MSOP

Analog Devices Inc.

4,282
LT3580HMS8E#TRPBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up, Step-Up/Step-Down Positive or Negative Adjustable 1 2.5V Boost, Cuk, SEPIC 32V 5V 42V (Switch) 2A (Switch) 200kHz ~ 2MHz - No - -40°C ~ 150°C (TJ) Surface Mount 8-MSOP-EP
LT3580HMS8E#PBF

LT3580HMS8E#PBF

IC REG BOOST CUK ADJ 2A 8MSOP

Analog Devices Inc.

2,485
LT3580HMS8E#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 2.5V Boost, Cuk, SEPIC 32V 5V 42V (Switch) 2A (Switch) 200kHz ~ 2MHz - No - -40°C ~ 150°C (TJ) Surface Mount 8-MSOP-EP
LT8636HV#PBF

LT8636HV#PBF

IC REG BUCK ADJ 5A 20LQFN

Analog Devices Inc.

226
LT8636HV#PBF

Datasheet

- 20-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 5A 200kHz ~ 3MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 20-LQFN (4x3)
MAX8643ETG+

MAX8643ETG+

IC REG BUCK ADJ 3A 24TQFN

Analog Devices Inc./Maxim Integrated

1,175
MAX8643ETG+

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.35V Buck 3.6V 0.6V 3.24V 3A 500kHz ~ 2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 24-TQFN (4x4)
LTC3600EMSE#PBF

LTC3600EMSE#PBF

IC REG BUCK PROG 1.5A 12MSOP

Analog Devices Inc.

2,847
LTC3600EMSE#PBF

Datasheet

- 12-TSSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Programmable 1 4V Buck 15V 0V 14.5V 1.5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-MSOP-EP
LTC3630HDHC#PBF

LTC3630HDHC#PBF

IC REG BUCK ADJ 500MA 16DFN

Analog Devices Inc.

2,531
LTC3630HDHC#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Down Positive or Negative Adjustable (Programmable) 1 4V Buck 65V 0.8V (1.8V, 3.3V, 5V) 65V 500mA - - Yes - -40°C ~ 150°C (TJ) Surface Mount 16-DFN (5x3)
LTC3245EDE#TRPBF

LTC3245EDE#TRPBF

IC REG CHRG PUMP ADJ 250MA 12DFN

Analog Devices Inc.

1,248
LTC3245EDE#TRPBF

Datasheet

- 12-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable (Programmable) 1 2.7V Charge Pump 38V 2.5V (3.3V, 5V) 5V 250mA 450kHz - No - -40°C ~ 125°C (TJ) Surface Mount 12-DFN (4x3)
LTC3621IDCB-5#TRMPBF

LTC3621IDCB-5#TRMPBF

IC REG BUCK 5V 1A 6DFN

Analog Devices Inc.

153
LTC3621IDCB-5#TRMPBF

Datasheet

- 6-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.7V Buck 17V 5V - 1A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 6-DFN (2x3)
ADP1111ANZ-5

ADP1111ANZ-5

IC REG BUCK BOOST 5V 400MA 8PDIP

Analog Devices Inc.

114
ADP1111ANZ-5

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up, Step-Down Positive or Negative Fixed 1 2V Buck, Boost 30V 5V - 400mA (Switch) 72kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
LT1934IS6#TRMPBF

LT1934IS6#TRMPBF

IC REG BUCK ADJ 300MA TSOT23-6

Analog Devices Inc.

5,423
LT1934IS6#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 - -40°C ~ 125°C (TA) Surface Mount TSOT-23-6
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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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