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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
MAX765ESA+

MAX765ESA+

IC REG BUCK BOOST ADJ/-1V 8SOIC

Analog Devices Inc./Maxim Integrated

2,950
MAX765ESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up/Step-Down Negative Adjustable (Fixed) 1 3V Buck-Boost 16V -1V (-12V) -16V 120mA 300kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
MAX1685EEE+

MAX1685EEE+

IC REG BUCK ADJ/1.25V 1A 16QSOP

Analog Devices Inc./Maxim Integrated

448
MAX1685EEE+

Datasheet

- 16-SSOP (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable (Fixed) 1 2.7V Buck 14V 1.25V (3.3V) 14V 1A 600kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-QSOP
LTC7103IUHE#PBF

LTC7103IUHE#PBF

IC REG BUCK ADJ 2.3A 36QFN

Analog Devices Inc.

1,609
LTC7103IUHE#PBF

Datasheet

- 36-WFQFN, 26 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.4V Buck 105V 1V 105V 2.3A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 36-QFN (5x6)
MAX764ESA+T

MAX764ESA+T

IC REG BUCK BOOST ADJ/-1V 8SOIC

Analog Devices Inc./Maxim Integrated

1,956
MAX764ESA+T

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Up/Step-Down Negative Adjustable (Fixed) 1 3V Buck-Boost 16V -1V (-5V) -16V 260mA 300kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LTC1474IS8-5#PBF

LTC1474IS8-5#PBF

IC REG BUCK BOOST 5V 750MA 8SO

Analog Devices Inc.

100
LTC1474IS8-5#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down, Step-Up/Step-Down Positive or Negative Fixed 1 3V Buck, Buck-Boost, SEPIC 18V 5V - 750mA (Switch) - - No - -40°C ~ 85°C (TA) Surface Mount 8-SO
LT8640HUDC-1#PBF

LT8640HUDC-1#PBF

IC REG BUCK ADJ 5A 20QFN

Analog Devices Inc.

3,579
LT8640HUDC-1#PBF

Datasheet

Silent Switcher®1 20-WFQFN, 18 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 5A 210kHz ~ 2MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 20-QFN (3x4)
LT1533CS#TRPBF

LT1533CS#TRPBF

IC REG PUSH-PULL ADJ 1A 16SO

Analog Devices Inc.

2,355
LT1533CS#TRPBF

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Up/Step-Down Positive or Negative, Isolation Capable Adjustable 1 2.7V Push-Pull 23V 1.25V 30V (Switch) 1A (Switch) 20kHz ~ 250kHz - No - 0°C ~ 100°C (TJ) Surface Mount 16-SO
LT1533CS#PBF

LT1533CS#PBF

IC REG PUSH-PULL ADJ 1A 16SO

Analog Devices Inc.

1,291
LT1533CS#PBF

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tube Active Step-Up/Step-Down Positive or Negative, Isolation Capable Adjustable 1 2.7V Push-Pull 23V 1.25V 30V (Switch) 1A (Switch) 20kHz ~ 250kHz - No - 0°C ~ 100°C (TJ) Surface Mount 16-SO
LT1976IFE#TRPBF

LT1976IFE#TRPBF

IC REG BUCK ADJ 1.5A 16TSSOP

Analog Devices Inc.

2,303
LT1976IFE#TRPBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 60V 1.25V 55.2V 1.5A (Switch) 200kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LT1977IFE#PBF

LT1977IFE#PBF

IC REG BUCK ADJ 1.5A 16TSSOP

Analog Devices Inc.

638
LT1977IFE#PBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 60V 1.25V 55.2V 1.5A (Switch) 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
MAX635AESA+

MAX635AESA+

IC REG BUCK ADJ/-5V 500MA 8SOIC

Analog Devices Inc./Maxim Integrated

130
MAX635AESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down/Inverted Negative Adjustable (Fixed) 1 2.3V Buck 16.5V -1.31V (-5V) -5V 500mA 50kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LT1171CT#06PBF

LT1171CT#06PBF

IC REG BUCK BST ADJ 2.5A TO220-5

Analog Devices Inc.

295
LT1171CT#06PBF

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) 2.5A (Switch) 100kHz - No - 0°C ~ 100°C (TJ) Through Hole TO-220-5 Flow 6
LT1071CT#PBF

LT1071CT#PBF

IC REG BUCK BST ADJ 2.5A TO220-5

Analog Devices Inc.

225
LT1071CT#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 60V 1.25V 65V (Switch) 2.5A (Switch) 40kHz - No - 0°C ~ 100°C (TJ) Through Hole TO-220-5
LTC7103HUHE#PBF

LTC7103HUHE#PBF

IC REG BUCK ADJ 2.3A 36QFN

Analog Devices Inc.

600
LTC7103HUHE#PBF

Datasheet

- 36-WFQFN, 26 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.4V Buck 105V 1V 105V 2.3A 1MHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 36-QFN (5x6)
MAX738ACPA+

MAX738ACPA+

IC REG BUCK 5V 750MA 8PDIP

Analog Devices Inc./Maxim Integrated

148
MAX738ACPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Down Positive Fixed 1 6V Buck 16V 5V - 750mA 160kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
MAX1644EAE+T

MAX1644EAE+T

IC REG BUCK ADJ 2A 16SSOP

Analog Devices Inc./Maxim Integrated

3,685
MAX1644EAE+T

Datasheet

- 16-SSOP (0.209", 5.30mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable (Programmable) 1 3V Buck 5.5V 1.1V (2.525V, 3.33V) 5.5V 2A Up to 350kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-SSOP
TPS5420MDREP

TPS5420MDREP

IC REG BUCK ADJ 2A 8SOIC

Texas Instruments

5,405
TPS5420MDREP

Datasheet

SWIFT™ 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 5.5V Buck 35V 1.22V 31V 2A 500kHz - No - -55°C ~ 125°C (TJ) Surface Mount 8-SOIC
MAX15020ATP+

MAX15020ATP+

IC REG BUCK ADJ 2A 20TQFN

Analog Devices Inc./Maxim Integrated

489
MAX15020ATP+

Datasheet

- 20-WQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 7.5V Buck 40V 0.5V 36V 2A 300kHz ~ 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 20-TQFN (5x5)
MAX16993ATJA+

MAX16993ATJA+

IC REG BUCK ADJ 3A TRPL 32TQFN

Analog Devices Inc./Maxim Integrated

1,291
MAX16993ATJA+

Datasheet

- 32-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable (Programmable) 3 3.5V Buck 36V 0.8V 3.95V 3A 2.1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 32-TQFN (5x5)
LTC3375EUK#TRPBF

LTC3375EUK#TRPBF

IC REG BUCK ADJ 1A 8OUT 48QFN

Analog Devices Inc.

1,598
LTC3375EUK#TRPBF

Datasheet

- 48-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 8 2.7V Buck 5.5V 0.425V 5.5V 1A 2MHz - No - -40°C ~ 150°C (TJ) Surface Mount 48-QFN (7x7)
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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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