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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
LT3580IMS8E#TRPBF

LT3580IMS8E#TRPBF

IC REG BOOST CUK ADJ 2A 8MSOP

Analog Devices Inc.

6,695
LT3580IMS8E#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 ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LT3580IMS8E#PBF

LT3580IMS8E#PBF

IC REG BOOST CUK ADJ 2A 8MSOP

Analog Devices Inc.

4,080
LT3580IMS8E#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 ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LM2577S-ADJ/NOPB

LM2577S-ADJ/NOPB

IC REG BST FLYBACK ADJ 3A TO263

Texas Instruments

240
LM2577S-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Up, Step-Up/Step-Down Positive or Negative Adjustable 1 3.5V Boost, Flyback, Forward Converter 40V 1.23V 60V (Switch) 3A (Switch) 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
MAX861ESA+

MAX861ESA+

IC REG CHARG PUMP INV 50MA 8SOIC

Analog Devices Inc./Maxim Integrated

805
MAX861ESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive or Negative Fixed 1 1.5V, 2.5V Charge Pump 5.5V -Vin, 2Vin - 50mA 13kHz, 100kHz, 250kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LTC3538EDCB#TRMPBF

LTC3538EDCB#TRMPBF

IC REG BUCK BOOST ADJ 800MA 8DFN

Analog Devices Inc.

167
LTC3538EDCB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.4V Buck-Boost 5.5V 1.8V 5.25V 800mA 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-DFN (2x3)
LT3990EDD#TRPBF

LT3990EDD#TRPBF

IC REG BUCK ADJ 350MA 10DFN

Analog Devices Inc.

2,661
LT3990EDD#TRPBF

Datasheet

- 10-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.2V Buck 62V 1.21V 25V 350mA 210kHz ~ 2.3MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LTC3621EMS8E-2#PBF

LTC3621EMS8E-2#PBF

IC REG BUCK ADJ 1A 8MSOP

Analog Devices Inc.

658
LTC3621EMS8E-2#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.7V Buck 17V 0.6V 17V 1A 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LT3990EDD#PBF

LT3990EDD#PBF

IC REG BUCK ADJ 350MA 10DFN

Analog Devices Inc.

461
LT3990EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.2V Buck 62V 1.21V 25V 350mA 210kHz ~ 2.3MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LT3512IMS#PBF

LT3512IMS#PBF

IC REG FLYBACK 420MA 16MSOP

Analog Devices Inc.

5,914
LT3512IMS#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 - - 420mA 40kHz ~ 650kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP
MAX38889AATE+

MAX38889AATE+

IC REG BUCK BOOST ADJ 3A 16TQFN

Analog Devices Inc./Maxim Integrated

716
MAX38889AATE+

Datasheet

- 16-WFQFN Exposed Pad Tray Active Step-Up/Step-Down Positive Adjustable 1 0.5V Buck-Boost 5.5V 2.5V 5.5V 3A 1.2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TQFN (3x3)
LT3470ETS8#TRPBF

LT3470ETS8#TRPBF

IC REG BUCK ADJ 200MA TSOT23-8

Analog Devices Inc.

2,597
LT3470ETS8#TRPBF

Datasheet

- SOT-23-8 Thin, TSOT-23-8 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 40V 1.25V 16V 200mA - - No - 0°C ~ 85°C (TA) Surface Mount TSOT-23-8
ADP5135ACPZ-R7

ADP5135ACPZ-R7

IC REG BCK ADJ 1.8A TRPL 24LFCSP

Analog Devices Inc.

1,757
ADP5135ACPZ-R7

Datasheet

- 24-WFQFN Exposed Pad, CSP Tape & Reel (TR) Active Step-Down Positive Adjustable 3 3V Buck 5.5V 0.8V 3.8V 1.8A 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-LFCSP (4x4)
LT3470ETS8#TRMPBF

LT3470ETS8#TRMPBF

IC REG BUCK ADJ 200MA TSOT23-8

Analog Devices Inc.

1,655
LT3470ETS8#TRMPBF

Datasheet

- SOT-23-8 Thin, TSOT-23-8 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 40V 1.25V 16V 200mA - - No - 0°C ~ 85°C (TA) Surface Mount TSOT-23-8
LTC1044CS8#TRPBF

LTC1044CS8#TRPBF

IC REG CHARGE PUMP INV 20MA 8SO

Analog Devices Inc.

4,328
LTC1044CS8#TRPBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 9V -Vin, 2Vin, Vin/2 - 20mA 1kHz ~ 5kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LTC1044CS8#PBF

LTC1044CS8#PBF

IC REG CHARGE PUMP INV 20MA 8SO

Analog Devices Inc.

2,628
LTC1044CS8#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 9V -Vin, 2Vin, Vin/2 - 20mA 1kHz ~ 5kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LT1026CS8#PBF

LT1026CS8#PBF

IC REG CHRG PUMP INV 15MA DL 8SO

Analog Devices Inc.

1,495
LT1026CS8#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 - 0°C ~ 70°C (TA) Surface Mount 8-SO
LT1425CS#PBF

LT1425CS#PBF

IC REG FLYBACK 135MA 16SO

Analog Devices Inc.

5,275
LT1425CS#PBF

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tube Active Step-Up/Step-Down Positive or Negative, Isolation Capable - 1 2.8V Flyback 20V - - 135mA (Switch) 285kHz - No - 0°C ~ 100°C (TJ) Surface Mount 16-SO
LT8580IMS8E#PBF

LT8580IMS8E#PBF

IC REG BOOST CUK ADJ 1.2A 8MSOP

Analog Devices Inc.

5,367
LT8580IMS8E#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 2.55V Boost, Cuk, SEPIC 40V 1.2V 65V (Switch) 1.2A (Switch) 200kHz ~ 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-MSOP-EP
LT3990EMSE#TRPBF

LT3990EMSE#TRPBF

IC REG BUCK ADJ 350MA 16MSOP

Analog Devices Inc.

8,296
LT3990EMSE#TRPBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.2V Buck 62V 1.21V 25V 350mA 210kHz ~ 2.3MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-MSOP-EP
LT3505EMS8E#PBF

LT3505EMS8E#PBF

IC REG BUCK ADJ 1.2A 8MSOP

Analog Devices Inc.

6,812
LT3505EMS8E#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.78V 33.84V 1.2A 200kHz ~ 3.01MHz - No - -40°C ~ 85°C (TA) Surface Mount 8-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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