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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
MAX16977SATE+

MAX16977SATE+

IC REG BUCK ADJ/1V 2A 16TQFN

Analog Devices Inc./Maxim Integrated

122
MAX16977SATE+

Datasheet

- 16-WQFN Exposed Pad Tube Active Step-Down Positive Adjustable (Fixed) 1 3.5V Buck 36V 1V (5V) 10V 2A 2.2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TQFN (5x5)
LT3437EDD#PBF

LT3437EDD#PBF

IC REG BUCK ADJ 500MA 10DFN

Analog Devices Inc.

1,279
LT3437EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3V Buck 60V 1.25V 57V 500mA (Switch) 200kHz - No - 0°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LTC1503CMS8-1.8#PBF

LTC1503CMS8-1.8#PBF

IC REG CHG PUMP 1.8V 100MA 8MSOP

Analog Devices Inc.

296
LTC1503CMS8-1.8#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Fixed 1 2.4V Charge Pump 6V 1.8V - 100mA 600kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-MSOP
LTC1550LCMS8-2#PBF

LTC1550LCMS8-2#PBF

IC REG CHARG PUMP -2V 20MA 8MSOP

Analog Devices Inc.

292
LTC1550LCMS8-2#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up/Step-Down Negative Fixed 1 2.7V Charge Pump 5.5V -2V - 20mA 900kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-MSOP
LTC1682CMS8#PBF

LTC1682CMS8#PBF

IC REG CHARG PUMP ADJ 50MA 8MSOP

Analog Devices Inc.

178
LTC1682CMS8#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up/Step-Down Positive Adjustable 1 1.8V Charge Pump 4.4V 2.5V 5.5V 50mA 550kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-MSOP
LTC1550LCMS8-4.1#PBF

LTC1550LCMS8-4.1#PBF

IC REG CHARGE PUMP -4.1V 8MSOP

Analog Devices Inc.

171
LTC1550LCMS8-4.1#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up/Step-Down Negative Fixed 1 4.5V Charge Pump 5.5V -4.1V - 20mA 900kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-MSOP
LTC1261LCMS8-4.5#PBF

LTC1261LCMS8-4.5#PBF

IC REG CHARGE PUMP -4.5V 8MSOP

Analog Devices Inc.

168
LTC1261LCMS8-4.5#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up/Step-Down Negative Fixed 1 4.5V Charge Pump 5.25V -4.5V - 20mA 650kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-MSOP
LTC1682CMS8-5#PBF

LTC1682CMS8-5#PBF

IC REG CHARGE PUMP 5V 50MA 8MSOP

Analog Devices Inc.

120
LTC1682CMS8-5#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up Positive Fixed 1 1.8V Charge Pump 4.4V 5V - 50mA 550kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-MSOP
LTC1551LCMS8-4.1#PBF

LTC1551LCMS8-4.1#PBF

IC REG CHARGE PUMP -4.1V 8MSOP

Analog Devices Inc.

3,663
LTC1551LCMS8-4.1#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up/Step-Down Negative Fixed 1 4.5V Charge Pump 5.5V -4.1V - 20mA 900kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-MSOP
LTC3565IMSE#PBF

LTC3565IMSE#PBF

IC REG BUCK ADJ 1.25A 10MSOP

Analog Devices Inc.

168
LTC3565IMSE#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5.5V 1.25A Up to 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LTC3411AIDD#PBF

LTC3411AIDD#PBF

IC REG BUCK ADJ 1.25A 10DFN

Analog Devices Inc.

1,783
LTC3411AIDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.8V 5V 1.25A 2.5MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LT3990HMSE-3.3#PBF

LT3990HMSE-3.3#PBF

IC REG BUCK 3.3V 350MA 16MSOP

Analog Devices Inc.

531
LT3990HMSE-3.3#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Fixed 1 4.2V Buck 62V 3.3V - 350mA 210kHz ~ 2.3MHz - No - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LTC3534EDHC#PBF

LTC3534EDHC#PBF

IC REG BUCK BST ADJ 500MA 16DFN

Analog Devices Inc.

4,158
LTC3534EDHC#PBF

Datasheet

- 16-WFDFN Exposed Pad Tube Active Step-Up/Step-Down Positive Adjustable 1 2.4V Buck-Boost 7V 1.8V 7V 500mA 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-DFN (5x3)
LTC3245IMSE#PBF

LTC3245IMSE#PBF

IC REG CHG PUMP ADJ 250MA 12MSOP

Analog Devices Inc.

2,744
LTC3245IMSE#PBF

Datasheet

- 12-TSSOP (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 250mA 450kHz - No - -40°C ~ 125°C (TJ) Surface Mount 12-MSOP-EP
MAX20040BATPA/VY+

MAX20040BATPA/VY+

IC REG BUCK BST PROG 20TQFN

Analog Devices Inc./Maxim Integrated

4,673
MAX20040BATPA/VY+

Datasheet

- 20-WFQFN Exposed Pad Tube Active Step-Up/Step-Down Positive Programmable (Fixed) 1 2V Buck-Boost 36V - 15V 1.2A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C Surface Mount, Wettable Flank 20-TQFN-EP (4x4)
LT1615IS5-1#TRPBF

LT1615IS5-1#TRPBF

IC REG BOOST SEPIC ADJ TSOT23-5

Analog Devices Inc.

3,604
LT1615IS5-1#TRPBF

Datasheet

- SOT-23-5 Thin, TSOT-23-5 Tape & Reel (TR) Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 1V Boost, SEPIC 15V 1.23V 34V 75mA (Switch) - - No - -40°C ~ 85°C (TA) Surface Mount TSOT-23-5
LTC3121EDE#TRPBF

LTC3121EDE#TRPBF

IC REG BOOST ADJ 1.5A 12DFN

Analog Devices Inc.

2,990
LTC3121EDE#TRPBF

Datasheet

- 12-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up Positive Adjustable 1 1.8V Boost 5.5V 2.2V 15V 1.5A (Switch) Up to 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-DFN (4x3)
LT3483AEDC#TRMPBF

LT3483AEDC#TRMPBF

IC REG BUCK BOOST ADJ 340MA 8DFN

Analog Devices Inc.

939
LT3483AEDC#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Up, Step-Down, Step-Up/Step-Down Negative Adjustable 1 2.5V Buck, Boost, Charge Pump, Flyback 16V -2.5V -38V 340mA (Switch) - - No - -40°C ~ 85°C (TA) Surface Mount 8-DFN (2x2)
LTC3547BIDDB#TRMPBF

LTC3547BIDDB#TRMPBF

IC REG BUCK ADJ 300MA DL 8DFN

Analog Devices Inc.

279
LTC3547BIDDB#TRMPBF

Datasheet

- 8-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 2.5V Buck 6.5V 0.6V 5.5V 300mA 2.25MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 8-DFN (3x2)
MAX662ACPA+

MAX662ACPA+

IC REG CHARG PUMP 12V 30MA 8PDIP

Analog Devices Inc./Maxim Integrated

166
MAX662ACPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up Positive Fixed 1 4.5V Charge Pump 5.5V 12V - 30mA 500kHz - No - 0°C ~ 70°C (TA) Through Hole 8-PDIP
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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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