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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
ADP2138ACBZ-1.8-R7

ADP2138ACBZ-1.8-R7

IC REG BUCK 1.8V 800MA 6WLCSP

Analog Devices Inc.

8,032
ADP2138ACBZ-1.8-R7

Datasheet

- 6-UFBGA, WLCSP Tape & Reel (TR) Active Step-Down Positive Fixed 1 2.3V Buck 5.5V 1.8V - 800mA 3MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 6-WLCSP (1.03x1.50)
LM5166XDRCT

LM5166XDRCT

IC REG BUCK 5V 500MA 10VSON

Texas Instruments

883
LM5166XDRCT

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck 65V 5V - 500mA 50kHz ~ 600kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 10-VSON (3x3)
LM5166YDRCT

LM5166YDRCT

IC REG BUCK 3.3V 500MA 10VSON

Texas Instruments

814
LM5166YDRCT

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3V Buck 65V 3.3V - 500mA 50kHz ~ 600kHz - Yes - -40°C ~ 150°C (TJ) Surface Mount 10-VSON (3x3)
MAX17552AUB+

MAX17552AUB+

IC REG BUCK ADJ 100MA 10UMAX

Analog Devices Inc./Maxim Integrated

5,953
MAX17552AUB+

Datasheet

Himalaya 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Tube Active Step-Down Positive Adjustable 1 4V Buck 60V 0.8V 54V 100mA 100kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-uMAX/uSOP
TPS51313DRCT

TPS51313DRCT

IC REG BUCK ADJ 3A 10VSON

Texas Instruments

320
TPS51313DRCT

Datasheet

D-CAP2™ 10-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.1V Buck 5.5V 0.6V 3.3V 3A 1MHz - Yes - -10°C ~ 85°C (TA) Surface Mount 10-VSON (3x3)
TPS65266RHBT

TPS65266RHBT

IC REG BCK ADJ 3A/2A TRPL 32VQFN

Texas Instruments

1,899
TPS65266RHBT

Datasheet

- 32-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 3 2.7V Buck 6.5V 0.6V 6.5V 3A, 2A 250kHz ~ 2.4MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 32-VQFN (5x5)
ADP5300ACPZ-4-R7

ADP5300ACPZ-4-R7

IC REG BUCK PROG 10LFCSP

Analog Devices Inc.

5,949
ADP5300ACPZ-4-R7

Datasheet

- 10-VFDFN Exposed Pad, CSP Tape & Reel (TR) Active Step-Down Positive Programmable 1 2.15V Buck 6.5V 0.8V 5V 50mA, 500mA 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-LFCSP-WD (3x3)
BD9S400MUF-CE2

BD9S400MUF-CE2

IC REG BUCK ADJ 4A 16VQFN

Rohm Semiconductor

5,695
BD9S400MUF-CE2

Datasheet

- 16-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 5.5V 0.8V 4.4V 4A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount VQFN016V3030
MP24943DS-LF-Z

MP24943DS-LF-Z

IC REG BUCK ADJ 3A 8SOIC

Monolithic Power Systems Inc.

1,766
MP24943DS-LF-Z

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 55V 0.8V 45V 3A 100kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
TPS56720PWP

TPS56720PWP

IC REG BUCK ADJ 7A 20HTSSOP

Texas Instruments

386
TPS56720PWP

Datasheet

SWIFT™, D-CAP2™, Eco-Mode™ 20-PowerTSSOP (0.173", 4.40mm Width) Tube Active Step-Down Positive Adjustable (Programmable) 1 4.5V Buck 17V 0.6V 1.87V 7A 500kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-HTSSOP
ISL97656IRTZ

ISL97656IRTZ

IC REG BOOST ADJ 3.8A 10TDFN

Renesas Electronics Corporation

1,111
ISL97656IRTZ

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Up Positive Adjustable 1 2.2V Boost 6V 5V 25V 3.8A (Switch) 640kHz, 1.2MHz - No - -40°C ~ 85°C (TA) Surface Mount 10-TDFN-EP (3x3)
MPQ9843GL-Z

MPQ9843GL-Z

IC REG BUCK ADJ 3A 16QFN

Monolithic Power Systems Inc.

19,952
MPQ9843GL-Z

Datasheet

MPQ 16-PowerVQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 36V 3A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x4)
MPQ4569GQ-P

MPQ4569GQ-P

IC REG BUCK ADJ 300MA 10QFN

Monolithic Power Systems Inc.

7,195
MPQ4569GQ-P

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 75V 1V 67.5V 300mA - AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 10-QFN (3x3)
TPS5431DDAR

TPS5431DDAR

IC REG BUCK ADJ 3A 8SOPWR

Texas Instruments

2,743
TPS5431DDAR

Datasheet

- 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 5.5V Buck 23V 1.221V 20.47V 3A 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
MPQ4323CGDE-AEC1-P

MPQ4323CGDE-AEC1-P

IC REG BUCK ADJ 3A 12QFN

Monolithic Power Systems Inc.

1,904
MPQ4323CGDE-AEC1-P

Datasheet

- 12-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 34.2V 3A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 12-QFN (2x3)
MPQ4323GDE-AEC1-P

MPQ4323GDE-AEC1-P

IC REG BUCK ADJ 3A 12QFN

Monolithic Power Systems Inc.

715
MPQ4323GDE-AEC1-P

Datasheet

- 12-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3.3V Buck 36V 0.8V 34.2V 3A 350kHz ~ 2.5MHz AEC-Q100 Yes Automotive -40°C ~ 150°C (TJ) Surface Mount, Wettable Flank 12-QFN (2x3)
MAX20499CAFOA/VY+

MAX20499CAFOA/VY+

IC REG BUCK ADJ 16A 17FC2QFN

Analog Devices Inc./Maxim Integrated

1,288
MAX20499CAFOA/VY+

Datasheet

- 17-PowerWFQFN Tray Active Step-Down Positive Adjustable 1 3V Buck 5.5V 0.5V 1.275V 16A 1.1MHz, 2.2MHz - No - -40°C ~ 125°C (TJ) Surface Mount, Wettable Flank 17-FC2QFN (3.5x4)
MP4420HGJ-P

MP4420HGJ-P

IC REG BUCK ADJ 2A TSOT23-8

Monolithic Power Systems Inc.

800
MP4420HGJ-P

Datasheet

- SOT-23-8 Thin, TSOT-23-8 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 36V 0.8V 32.4V 2A 410kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-8
BD9P155EFV-CE2

BD9P155EFV-CE2

IC REG BUCK 5V 1A 20HTSSOP-B

Rohm Semiconductor

11,022
BD9P155EFV-CE2

Datasheet

- 20-VSSOP (0.173", 4.40mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.5V Buck 40V 5V - 1A 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount 20-HTSSOP-B
LM2671M-12/NOPB

LM2671M-12/NOPB

IC REG BUCK 12V 500MA 8SOIC

Texas Instruments

969
LM2671M-12/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 6.5V Buck 40V 12V - 500mA 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
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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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