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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
TPS53315RGFR

TPS53315RGFR

IC REG BUCK ADJ 12A 40VQFN

Texas Instruments

4,812
TPS53315RGFR

Datasheet

D-CAP™, Eco-Mode™ 40-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 3V Buck 15V 0.6V 5.5V 12A 250kHz ~ 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 40-VQFN (7x5)
LP875640RNFRQ1

LP875640RNFRQ1

IC REG BUCK ADJ 16A QUAD 26VQFN

Texas Instruments

1,361
LP875640RNFRQ1

Datasheet

- 26-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Adjustable 4 2.8V Buck 5.5V 0.6V 3.36V 16A 2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 26-VQFN-HR (4.5x4)
MP38894DN-LF-Z

MP38894DN-LF-Z

IC REG BUCK ADJ 4.5A 8SOICE

Monolithic Power Systems Inc.

864
MP38894DN-LF-Z

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 42V 0.8V 15V 4.5A 420kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOICE
MAX1044EPA+

MAX1044EPA+

IC REG CHARGE PUMP 20MA 8PDIP

Analog Devices Inc./Maxim Integrated

4,011
MAX1044EPA+

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 10V -Vin, nVin, Vin/2 - 20mA 10kHz - No - -40°C ~ 85°C (TA) Through Hole 8-PDIP
MP2403DN-LF-Z

MP2403DN-LF-Z

IC REG BUCK ADJ 3A 8SOIC

Monolithic Power Systems Inc.

3,789
MP2403DN-LF-Z

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 4.6V Buck 32V 0.8V 28V 3A 250kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-SOIC-EP
MAX5033CUSA+

MAX5033CUSA+

IC REG BUCK 12V 500MA 8SOIC

Analog Devices Inc./Maxim Integrated

551
MAX5033CUSA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Not For New Designs Step-Down Positive Fixed 1 15V Buck 76V 12V - 500mA 125kHz - No - 0°C ~ 85°C (TA) Surface Mount 8-SOIC
BD9778F-E2

BD9778F-E2

IC REG BUCK ADJ 2A 8SOP

Rohm Semiconductor

1,532
BD9778F-E2

Datasheet

- 8-SOIC (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7V Buck 35V 1V 35V 2A 50kHz ~ 500kHz - No - -40°C ~ 125°C (TA) Surface Mount 8-SOP
ISL8013AIRZ

ISL8013AIRZ

IC REG BUCK ADJ 3A 16QFN

Renesas Electronics Corporation

328
ISL8013AIRZ

Datasheet

- 16-VQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.8V Buck 5.5V 0.8V 5.5V 3A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 16-QFN (4x4)
ADP2441ACPZ-R7

ADP2441ACPZ-R7

IC REG BUCK ADJ 1A 12LFCSP

Analog Devices Inc.

1,709
ADP2441ACPZ-R7

Datasheet

- 12-WFQFN Exposed Pad, CSP Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 36V 0.6V 32.4V 1A 300kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-LFCSP-WQ (3x3)
ADUM4070ARIZ

ADUM4070ARIZ

IC REG PSH-PULL ADJ 350MA 16SOIC

Analog Devices Inc.

560
ADUM4070ARIZ

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Tube Active Step-Up/Step-Down Positive, Isolation Capable Adjustable 1 3V Push-Pull 7V 3.3V 24V 350mA 200kHz ~ 1MHz - No - -40°C ~ 105°C (TA) Surface Mount 16-SOIC
TPS54540QDDARQ1

TPS54540QDDARQ1

IC REG BCK SPLIT RAIL ADJ 8SOPWR

Texas Instruments

2,624
TPS54540QDDARQ1

Datasheet

Eco-Mode™ 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 4.5V Buck, Split Rail 42V 0.8V 41.1V 5A 100kHz ~ 2.5MHz AEC-Q100 No Automotive -40°C ~ 150°C (TJ) Surface Mount 8-SO PowerPad
MAX1595EUA50+T

MAX1595EUA50+T

IC REG CHARG PUMP 5V 125MA 8UMAX

Analog Devices Inc./Maxim Integrated

5,795
MAX1595EUA50+T

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tape & Reel (TR) Active Step-Up/Step-Down Positive Fixed 1 1.8V Charge Pump 5.5V 5V - 125mA 1MHz - No - -40°C ~ 85°C (TA) Surface Mount 8-uMAX/uSOP
LTC3619BEDD#PBF

LTC3619BEDD#PBF

IC REG BUCK ADJ DL 10DFN

Analog Devices Inc.

2,417
LTC3619BEDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 2 2.5V Buck 5.5V 0.6V 5V 400mA, 800mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
TPS65400QRGZRQ1

TPS65400QRGZRQ1

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

Texas Instruments

2,247
TPS65400QRGZRQ1

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 AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 48-VQFN (7x7)
LT3582EUD-5#PBF

LT3582EUD-5#PBF

IC REG BUCK BOOST 5V DL 16QFN

Analog Devices Inc.

798
LT3582EUD-5#PBF

Datasheet

- 16-WFQFN Exposed Pad Tube Active Step-Up Positive and Negative (Dual Rail) Fixed 2 2.55V Boost, Buck-Boost 5.5V ±5V - 285mA (Switch), 490mA (Switch) - - No - -40°C ~ 125°C (TJ) Surface Mount 16-QFN (3x3)
MAX17505ATP+

MAX17505ATP+

IC REG BUCK ADJ 1.7A 20TQFN

Analog Devices Inc./Maxim Integrated

5,862
MAX17505ATP+

Datasheet

Himalaya 20-WFQFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.5V Buck 60V 0.9V 54V 1.7A 200kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-TQFN (4x4)
RTQ2965GSP-QA

RTQ2965GSP-QA

IC REG BUCK ADJ 5A 8SOP

Richtek USA Inc.

2,264
RTQ2965GSP-QA

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 60V 0.8V 60V 5A 100kHz ~ 2.5MHz - No - -40°C ~ 150°C (TJ) Surface Mount 8-SOP-EP
MAX17682ATP+

MAX17682ATP+

IC REG BUCK 5V 3.7A 20TQFN

Analog Devices Inc./Maxim Integrated

923
MAX17682ATP+

Datasheet

- 20-WFQFN Exposed Pad Tray Active Step-Down Positive, Isolation Capable Fixed 1 4.5V Buck 42V 5V - 3.7A 100kHz ~ 500kHz - Yes - -40°C ~ 125°C (TA) Surface Mount 20-TQFN (4x4)
LM5575QMH/NOPB

LM5575QMH/NOPB

IC REG BUCK ADJ 1.5A 16HTSSOP

Texas Instruments

499
LM5575QMH/NOPB

Datasheet

SIMPLE SWITCHER® 16-PowerTSSOP (0.173", 4.40mm Width) Tube Active Step-Down Positive Adjustable 1 6V Buck 75V 1.225V 70V 1.5A 50kHz ~ 500kHz AEC-Q100 No Automotive -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
LM46002QPWPTQ1

LM46002QPWPTQ1

IC REG BUCK ADJ 2A 16HTSSOP

Texas Instruments

250
LM46002QPWPTQ1

Datasheet

SIMPLE SWITCHER® 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Not For New Designs Step-Down Positive Adjustable 1 3.5V Buck 60V 1V 28V 2A 200kHz ~ 2.2MHz AEC-Q100 Yes Automotive -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
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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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