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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
LTC3539EDCB-2#TRPBF

LTC3539EDCB-2#TRPBF

IC REG BOOST ADJ 2A 8DFN

Analog Devices Inc.

2,433
LTC3539EDCB-2#TRPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Adjustable 1 0.5V Boost 5V 1.5V 5.25V 2A (Switch) 2MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-DFN (2x3)
LT3663EDCB#TRMPBF

LT3663EDCB#TRMPBF

IC REG BUCK ADJ 1.2A 8DFN

Analog Devices Inc.

546
LT3663EDCB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7.5V Buck 36V 0.8V 6V 1.2A 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (2x3)
LT3653EDCB#TRMPBF

LT3653EDCB#TRMPBF

IC REG BUCK ADJ 1.2A 8DFN

Analog Devices Inc.

500
LT3653EDCB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7.5V Buck 30V 4.8V 6V 1.2A 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (2x3)
LT8609AEDDM-3.3#PBF

LT8609AEDDM-3.3#PBF

IC REG BUCK 3.3V 3A 10DFN

Analog Devices Inc.

176
LT8609AEDDM-3.3#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Fixed 1 3V Buck 42V 3.3V - 3A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 10-DFN (3x3)
LT8609AEDDM-5#PBF

LT8609AEDDM-5#PBF

IC REG BUCK 5V 3A 10DFN

Analog Devices Inc.

139
LT8609AEDDM-5#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Fixed 1 3V Buck 42V 5V - 3A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 10-DFN (3x3)
TPS56221DQPT

TPS56221DQPT

IC REG BUCK ADJ 25A 22LSON-CLIP

Texas Instruments

673
TPS56221DQPT

Datasheet

- 22-PowerLFDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 14V 0.6V 13.02V 25A 300kHz, 500kHz, 950kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 22-LSON-CLIP (6x5)
LTC3561EDD#PBF

LTC3561EDD#PBF

IC REG BUCK ADJ 1A 8DFN

Analog Devices Inc.

405
LTC3561EDD#PBF

Datasheet

- 8-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.625V Buck 5.5V 0.8V 5V 1A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-DFN (3x3)
MAX5073ETI+

MAX5073ETI+

IC REG BUCK BOOST ADJ DL 28TQFN

Analog Devices Inc./Maxim Integrated

310
MAX5073ETI+

Datasheet

- 28-WFQFN Exposed Pad Tube Active Step-Up, Step-Down Positive Adjustable 2 4.5V Buck, Boost 23V 0.8V 28V 1.38A (Switch), 2.3A (Switch) 200kHz ~ 2.2MHz - No - -40°C ~ 85°C (TA) Surface Mount 28-TQFN (5x5)
LT1307CMS8#PBF

LT1307CMS8#PBF

IC REG BOOST ADJ 600MA 8MSOP

Analog Devices Inc.

242
LT1307CMS8#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up Positive Adjustable 1 1V Boost 5V 1.22V 30V (Switch) 600mA (Switch) 600kHz - No - -20°C ~ 70°C (TA) Surface Mount 8-MSOP
LT1307BCMS8#PBF

LT1307BCMS8#PBF

IC REG BOOST ADJ 600MA 8MSOP

Analog Devices Inc.

122
LT1307BCMS8#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up Positive Adjustable 1 1V Boost 5V 1.22V 30V (Switch) 600mA (Switch) 600kHz - No - -20°C ~ 70°C (TA) Surface Mount 8-MSOP
LM21215MHE/NOPB

LM21215MHE/NOPB

IC REG BUCK ADJ 15A 20HTSSOP

Texas Instruments

1,281
LM21215MHE/NOPB

Datasheet

- 20-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.95V Buck 5.5V 0.6V 5.5V 15A 500kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-HTSSOP
EL7532IYZ-T7

EL7532IYZ-T7

IC REG BUCK ADJ 2A 10MSOP

Renesas Electronics Corporation

2,007
EL7532IYZ-T7

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.8V 5.5V 2A 1.5MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-MSOP
MAX16907SAUE+

MAX16907SAUE+

IC REG BUCK ADJ/1V 3A 16TSSOP

Analog Devices Inc./Maxim Integrated

123
MAX16907SAUE+

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable (Fixed) 1 3.5V Buck 36V 1V (5V) 10V 3A 2.2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
MAX633ACPA+

MAX633ACPA+

IC REG BST ADJ/1.31V 450MA 8PDIP

Analog Devices Inc./Maxim Integrated

4,523
MAX633ACPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up Positive or Negative Adjustable (Fixed) 1 2V Boost, Charge Pump 16.5V 1.31V (15V) 18V (Switch) 450mA (Switch) 50kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
LT3905EUD#TRPBF

LT3905EUD#TRPBF

IC REG BOOST ADJ 350MA 16QFN

Analog Devices Inc.

4,420
LT3905EUD#TRPBF

Datasheet

- 16-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Adjustable 1 2.7V Boost 12V 1.248V 65V (Switch) 350mA (Switch) 1MHz ~ 2MHz - No - -40°C ~ 125°C (TA) Surface Mount 16-QFN (3x3)
LTC3621EMS8E-23.3#PBF

LTC3621EMS8E-23.3#PBF

IC REG BUCK 3.3V 1A 8MSOP

Analog Devices Inc.

164
LTC3621EMS8E-23.3#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 2.7V Buck 17V 3.3V - 1A 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
ICL7662CBD+

ICL7662CBD+

IC REG CHARGE PUMP 14SOIC

Analog Devices Inc./Maxim Integrated

360
ICL7662CBD+

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Negative Fixed 1 4.5V Charge Pump 20V -Vin - - 10kHz - No - 0°C ~ 70°C (TA) Surface Mount 14-SOIC
LT1173CN8-5#PBF

LT1173CN8-5#PBF

IC REG BUCK BOOST 5V 1.5A 8PDIP

Analog Devices Inc.

2,805
LT1173CN8-5#PBF

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up, Step-Down Positive or Negative Fixed 1 2V Buck, Boost 30V 5V - 1.5A (Switch) 23kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
LT1304CS8#PBF

LT1304CS8#PBF

IC REG BST SEPIC ADJ 800MA 8SO

Analog Devices Inc.

402
LT1304CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 1.5V Boost, SEPIC 8V 1.24V 25V (Switch) 800mA (Switch) Up to 300kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SO
LT8580IDD#PBF

LT8580IDD#PBF

IC REG BOOST CUK ADJ 1.2A 8DFN

Analog Devices Inc.

594
LT8580IDD#PBF

Datasheet

- 8-WFDFN Exposed Pad Tube Active Step-Up, Step-Up/Step-Down Positive or Negative Adjustable 1 2.55V Boost, Cuk, SEPIC 40V 1.2V 65V (Switch) 1.2A (Switch) 200kHz ~ 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-DFN (3x3)
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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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