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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
MIC4576WU

MIC4576WU

IC REG BUCK ADJ 3A TO263-5

Microchip Technology

185
MIC4576WU

Datasheet

- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tube Active Step-Down Positive Adjustable 1 4V Buck 36V 1.23V 33V 3A 200kHz - No - -40°C ~ 85°C (TA) Surface Mount TO-263-5
LM53603AQPWPTQ1

LM53603AQPWPTQ1

IC REG BUCK ADJ 3A 16HTSSOP

Texas Instruments

1,507
LM53603AQPWPTQ1

Datasheet

- 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.9V Buck 36V 3.3V 6V 3A 2.1MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
LM536033QPWPTQ1

LM536033QPWPTQ1

IC REG BUCK 3.3V 3A 16HTSSOP

Texas Instruments

1,331
LM536033QPWPTQ1

Datasheet

- 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.9V Buck 36V 3.3V - 3A 2.1MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
ISL8016IRAJZ-T

ISL8016IRAJZ-T

IC REG BUCK ADJ 6A 20QFN

Renesas Electronics Corporation

14,510
ISL8016IRAJZ-T

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 5.5V 0.6V 5.5V 6A 525kHz ~ 3.9MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 20-QFN (3x4)
ISL8016IRAJZ

ISL8016IRAJZ

IC REG BUCK ADJ 6A 20QFN

Renesas Electronics Corporation

1,476
ISL8016IRAJZ

Datasheet

- 20-VFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.7V Buck 5.5V 0.6V 5.5V 6A 525kHz ~ 3.9MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 20-QFN (3x4)
MIC2171WT

MIC2171WT

IC REG BUCK BST ADJ 2.5A TO220-5

Microchip Technology

141
MIC2171WT

Datasheet

- TO-220-5 Tube Active Step-Up, Step-Down, Step-Up/Step-Down Positive or Negative, Isolation Capable Adjustable 1 3V Buck, Boost, Cuk, Flyback, Forward Converter 40V - 65V (Switch) 2.5A (Switch) 100kHz - No - -40°C ~ 85°C (TA) Through Hole TO-220-5
TPS55288QRPMRQ1

TPS55288QRPMRQ1

IC REG BUCK BOOST ADJ 16A 26VQFN

Texas Instruments

3,016
TPS55288QRPMRQ1

Datasheet

- 26-PowerVFQFN Tape & Reel (TR) Active Step-Up/Step-Down Positive Adjustable 1 2.7V Buck-Boost 36V 0.8V 22V 16A 200kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount 26-VQFN-HR (4x3.5)
MP4460DQ-LF-P

MP4460DQ-LF-P

IC REG BUCK ADJ 2.5A 10QFN

Monolithic Power Systems Inc.

1,113
MP4460DQ-LF-P

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.8V Buck 36V 0.8V 30V 2.5A Up to 4MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-QFN (3x3)
LM73605RNPT

LM73605RNPT

IC REG BUCK ADJ 5A 30WQFN

Texas Instruments

996
LM73605RNPT

Datasheet

- 30-WFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.5V Buck 36V 1V 34.2V 5A 350kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 30-WQFN (6x4)
LM5001SD/NOPB

LM5001SD/NOPB

IC REG BOOST FLYBACK ADJ 8WSON

Texas Instruments

5,687
LM5001SD/NOPB

Datasheet

- 8-WDFN Exposed Pad Tape & Reel (TR) Active Step-Up, Step-Up/Step-Down Positive, Isolation Capable Adjustable 1 3.1V Boost, Flyback, Forward Converter, SEPIC 75V 3.1V 76V (Switch) 800mA (Switch) 50kHz ~ 1.5MHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-WSON (4x4)
BD9E303EFJ-LBH2

BD9E303EFJ-LBH2

IC REG BUCK ADJ 3A 8HTSOP-J

Rohm Semiconductor

4,963
BD9E303EFJ-LBH2

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7V Buck 36V 1V 28.8V 3A 300kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-HTSOP-J
LTC3250ES6-1.2#TRMPBF

LTC3250ES6-1.2#TRMPBF

IC REG CHARGE PUMP 1.2V TSOT23-6

Analog Devices Inc.

1,687
LTC3250ES6-1.2#TRMPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.7V Charge Pump 5.5V 1.2V - 250mA 1.5MHz - No - -40°C ~ 85°C (TA) Surface Mount TSOT-23-6
LM2679T-5.0/NOPB

LM2679T-5.0/NOPB

IC REG BUCK 5V 5A TO220-7

Texas Instruments

263
LM2679T-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-7 Formed Leads Tube Active Step-Down Positive Fixed 1 8V Buck 40V 5V - 5A 260kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-7
LM2679T-3.3/NOPB

LM2679T-3.3/NOPB

IC REG BUCK 3.3V 5A TO220-7

Texas Instruments

228
LM2679T-3.3/NOPB

Datasheet

SIMPLE SWITCHER® TO-220-7 Formed Leads Tube Active Step-Down Positive Fixed 1 8V Buck 40V 3.3V - 5A 260kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-7
LTC3410ESC6#TRMPBF

LTC3410ESC6#TRMPBF

IC REG BUCK ADJ 300MA SC70-6

Analog Devices Inc.

1,286
LTC3410ESC6#TRMPBF

Datasheet

- 6-TSSOP, SC-88, SOT-363 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.8V 5.5V 300mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount SC-70-6
LTC3410BESC6#TRMPBF

LTC3410BESC6#TRMPBF

IC REG BUCK ADJ 300MA SC70-6

Analog Devices Inc.

990
LTC3410BESC6#TRMPBF

Datasheet

- 6-TSSOP, SC-88, SOT-363 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.8V 5.5V 300mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount SC-70-6
MAX653ESA+

MAX653ESA+

IC REG BUCK ADJ/1.3V 225MA 8SOIC

Analog Devices Inc./Maxim Integrated

855
MAX653ESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable (Fixed) 1 4V Buck 11.5V 1.3V (3V) 11.5V 225mA - - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
TPS65400RGZT

TPS65400RGZT

IC REG BCK ADJ 4A/2A QUAD 48VQFN

Texas Instruments

624
TPS65400RGZT

Datasheet

- 48-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 4 4.5V Buck 18V 0.6V 16.2V 4A, 2A 275kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 48-VQFN (7x7)
MPQ2166BGRHE-AEC1-P

MPQ2166BGRHE-AEC1-P

IC REG BUCK ADJ DL 18QFN

Monolithic Power Systems Inc.

500
MPQ2166BGRHE-AEC1-P

Datasheet

- 18-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 2 2.7V Buck 6V 0.6V 5.5V 2A/2A, 3A/1A 350kHz ~ 3MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 18-QFN (2.5x3.5)
LTC3410BESC6-1.2#TRMPBF

LTC3410BESC6-1.2#TRMPBF

IC REG BUCK 1.2V 300MA SC70-6

Analog Devices Inc.

772
LTC3410BESC6-1.2#TRMPBF

Datasheet

- 6-TSSOP, SC-88, SOT-363 Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.5V Buck 5.5V 1.2V - 300mA 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount SC-70-6
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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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