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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
LT7101IUHE#PBF

LT7101IUHE#PBF

IC REG BUCK ADJ 1A 36QFN

Analog Devices Inc.

1,531
LT7101IUHE#PBF

Datasheet

- 36-WFQFN, 26 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.4V Buck 105V 1V 105V 1A 200kHz ~ 2MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 36-QFN (5x6)
LT3433IFE#TRPBF

LT3433IFE#TRPBF

IC REG BCK BST ADJ 500MA 16TSSOP

Analog Devices Inc.

3,039
LT3433IFE#TRPBF

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 4V Buck-Boost 60V 3.3V 20V 500mA (Switch) 200kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP-EP
LTC3370IUH#PBF

LTC3370IUH#PBF

IC REG BUCK ADJ 2A QUAD 32QFN

Analog Devices Inc.

579
LTC3370IUH#PBF

Datasheet

- 32-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 4 2.7V Buck 5.5V 0.8V 5.5V 2A 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 32-QFN (5x5)
LT8614EUDC#PBF

LT8614EUDC#PBF

IC REG BUCK ADJ 4A 20QFN

Analog Devices Inc.

16,432
LT8614EUDC#PBF

Datasheet

- 20-WFQFN, 18 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.4V Buck 42V 3.3V 30V 4A 200kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LTC3633EUFD#TRPBF

LTC3633EUFD#TRPBF

IC REG BUCK ADJ 3A DL 28QFN

Analog Devices Inc.

6,853
LTC3633EUFD#TRPBF

Datasheet

- 28-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 3.6V Buck 15V 0.6V 14.7V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LTC3605AEUF#TRPBF

LTC3605AEUF#TRPBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

6,170
LTC3605AEUF#TRPBF

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 20V 0.6V 19.8V 5A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 24-QFN (4x4)
LT3680EMSE#TRPBF

LT3680EMSE#TRPBF

IC REG BUCK ADJ 3.5A 10MSOP

Analog Devices Inc.

5,912
LT3680EMSE#TRPBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.79V 30V 3.5A 230kHz ~ 2.45MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LTC3605EUF#PBF

LTC3605EUF#PBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

5,196
LTC3605EUF#PBF

Datasheet

- 24-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 15V 0.6V 14.85V 5A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 24-QFN (4x4)
LT3680EMSE#PBF

LT3680EMSE#PBF

IC REG BUCK ADJ 3.5A 10MSOP

Analog Devices Inc.

4,005
LT3680EMSE#PBF

Datasheet

- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 36V 0.79V 30V 3.5A 230kHz ~ 2.45MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-MSOP-EP
LTC3633AEUFD#TRPBF

LTC3633AEUFD#TRPBF

IC REG BUCK ADJ 3A DL 28QFN

Analog Devices Inc.

3,693
LTC3633AEUFD#TRPBF

Datasheet

- 28-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 2 3.6V Buck 20V 0.6V 6V 3A 500kHz ~ 4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 28-QFN (4x5)
LT8614EUDC#TRPBF

LT8614EUDC#TRPBF

IC REG BUCK ADJ 4A 20QFN

Analog Devices Inc.

3,252
LT8614EUDC#TRPBF

Datasheet

- 20-WFQFN, 18 Leads, Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.4V Buck 42V 3.3V 30V 4A 200kHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
LTC3605EUF#TRPBF

LTC3605EUF#TRPBF

IC REG BUCK ADJ 5A 24QFN

Analog Devices Inc.

2,296
LTC3605EUF#TRPBF

Datasheet

- 24-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 15V 0.6V 14.85V 5A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 24-QFN (4x4)
LT3972EDD#PBF

LT3972EDD#PBF

IC REG BUCK ADJ 3.5A 10DFN

Analog Devices Inc.

908
LT3972EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 33V 0.79V 30V 3.5A 230kHz ~ 2.45MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LT3692AEUH#PBF

LT3692AEUH#PBF

IC REG BUCK ADJ 3.5A DL 32QFN

Analog Devices Inc.

405
LT3692AEUH#PBF

Datasheet

- 32-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 3V Buck 36V 0.8V 34.2V 3.5A 110kHz ~ 2.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 32-QFN (5x5)
MAX17506ATP+T

MAX17506ATP+T

IC REG BUCK ADJ 20TQFN

Analog Devices Inc./Maxim Integrated

200
MAX17506ATP+T

Datasheet

Himalaya 20-WQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 60V 0.9V 54V - 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TQFN (5x5)
MAX1776EUA+T

MAX1776EUA+T

IC REG BUCK ADJ/5V 600MA 8UMAX

Analog Devices Inc./Maxim Integrated

4,422
MAX1776EUA+T

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable (Fixed) 1 4.5V Buck 24V 1.25V (5V) 24V 600mA 200kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-uMAX/uSOP
LT8637JV#WPBF

LT8637JV#WPBF

IC REG BUCK ADJ 5A 20LQFN

Analog Devices Inc.

693
LT8637JV#WPBF

Datasheet

- 20-TFQFN Exposed Pad Tray Active Step-Down Positive Adjustable 1 3.4V Buck 42V 0.97V 42V 5A 200kHz ~ 3MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 20-LQFN (4x3)
LTC3639HMSE#TRPBF

LTC3639HMSE#TRPBF

IC REG BUCK ADJ 100MA 16MSOP

Analog Devices Inc.

1,968
LTC3639HMSE#TRPBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 150V 0.8V 150V 100mA - - Yes - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
LTC3638HMSE#PBF

LTC3638HMSE#PBF

IC REG BUCK ADJ 250MA 16MSOP

Analog Devices Inc.

1,263
LTC3638HMSE#PBF

Datasheet

- 16-TFSOP (0.118", 3.00mm Width), 12 Leads, Exposed Pad Tube Active Step-Down Positive Adjustable 1 4V Buck 140V 0.8V 140V 250mA - - No - -40°C ~ 150°C (TJ) Surface Mount 16-MSOP-EP
ADP5053ACPZ-R7

ADP5053ACPZ-R7

IC REG BUCK ADJ QUAD 48LFCSP

Analog Devices Inc.

1,077
ADP5053ACPZ-R7

Datasheet

- 48-WFQFN Exposed Pad, CSP Tape & Reel (TR) Active Step-Down Positive Adjustable 4 4.5V Buck 15V 0.8V 13.5V 1.2A, 2.5A, 4A, 1.2A 250kHz ~ 1.4MHz - No - -40°C ~ 125°C (TJ) Surface Mount 48-LFCSP (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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