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
MAX17640CATA+T

MAX17640CATA+T

IC REG BUCK ADJ 400MA 8TDFN

Analog Devices Inc./Maxim Integrated

4,456
MAX17640CATA+T

Datasheet

Himalaya 8-WFDFN Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 60V 0.9V 53.4V 400mA 500kHz - Yes - -40°C ~ 125°C (TA) Surface Mount 8-TDFN (2x2)
LM2611AMF/NOPB

LM2611AMF/NOPB

IC REG CUK ADJ 1.2A SOT23-5

Texas Instruments

1,091
LM2611AMF/NOPB

Datasheet

- SC-74A, SOT-753 Tape & Reel (TR) Active Step-Up/Step-Down Negative Adjustable 1 2.7V Cuk 14V -1.23V -32V 1.2A 1.4MHz - No - -40°C ~ 125°C (TJ) Surface Mount SOT-23-5
MAX1721EUT+T

MAX1721EUT+T

IC REG CHARGE PUMP INV 25MA SOT6

Analog Devices Inc./Maxim Integrated

10,287
MAX1721EUT+T

Datasheet

- SOT-23-6 Tape & Reel (TR) Active Ratiometric Positive or Negative Fixed 1 1.5V Charge Pump 5.5V -Vin, 2Vin - 25mA 60kHz ~ 200kHz - No - -40°C ~ 85°C (TA) Surface Mount SOT-6
TC962COE

TC962COE

IC REG CHRG PUMP INV 80MA 16SOIC

Microchip Technology

1,583
TC962COE

Datasheet

- 16-SOIC (0.295", 7.50mm Width) Tube Active Ratiometric Positive or Negative Fixed 1 3V Charge Pump 18V -Vin, 2Vin, Vin/2 - 80mA 12kHz ~ 24kHz - No - 0°C ~ 70°C (TA) Surface Mount 16-SOIC
LM2575SX-5.0/NOPB

LM2575SX-5.0/NOPB

IC REG BUCK 5V 1A TO263

Texas Instruments

1,507
LM2575SX-5.0/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Down Positive Fixed 1 4V Buck 40V 5V - 1A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
LM2575SX-ADJ/NOPB

LM2575SX-ADJ/NOPB

IC REG BUCK ADJ 1A TO263

Texas Instruments

1,127
LM2575SX-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® TO-263-6, D2PAK (5 Leads + Tab), TO-263BA Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 40V 1.23V 37V 1A 52kHz - No - -40°C ~ 125°C (TJ) Surface Mount TO-263 (DDPAK-5)
LM2651MTCX-ADJ/NOPB

LM2651MTCX-ADJ/NOPB

IC REG BUCK ADJ 1.5A 16TSSOP

Texas Instruments

9,883
LM2651MTCX-ADJ/NOPB

Datasheet

- 16-TSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4V Buck 14V 1.238V 13V 1.5A 300kHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 16-TSSOP
LM5017MR/NOPB

LM5017MR/NOPB

IC REG BUCK ADJ 600MA 8SOPWR

Texas Instruments

7,044
LM5017MR/NOPB

Datasheet

- 8-PowerSOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 7.5V Buck 100V 1.225V 90V 600mA Adj to 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
MP2457GJ-Z

MP2457GJ-Z

IC REG BUCK ADJ 600MA TSOT23-6

Monolithic Power Systems Inc.

1,759
MP2457GJ-Z

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 5V Buck 36V 0.8V 36V 600mA 2MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-6
LM5017SD/NOPB

LM5017SD/NOPB

IC REG BUCK ADJ 600MA 8WSON

Texas Instruments

1,162
LM5017SD/NOPB

Datasheet

- 8-WDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7.5V Buck 100V 1.225V 90V 600mA Adj to 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-WSON (4x4)
LM5017MRE/NOPB

LM5017MRE/NOPB

IC REG BUCK ADJ 600MA 8SOPWR

Texas Instruments

811
LM5017MRE/NOPB

Datasheet

- 8-PowerSOIC (0.154", 3.90mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 7.5V Buck 100V 1.225V 90V 600mA Adj to 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 8-SO PowerPad
LM5575MHX/NOPB

LM5575MHX/NOPB

IC REG BUCK ADJ 1.5A 16HTSSOP

Texas Instruments

2,244
LM5575MHX/NOPB

Datasheet

SIMPLE SWITCHER® 16-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 6V Buck 75V 1.225V 70V 1.5A 50kHz ~ 500kHz - No - -40°C ~ 125°C (TJ) Surface Mount 16-HTSSOP
LM2674M-ADJ/NOPB

LM2674M-ADJ/NOPB

IC REG BUCK ADJ 500MA 8SOIC

Texas Instruments

4,957
LM2674M-ADJ/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Adjustable 1 6.5V Buck 40V 1.2V 37V 500mA 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LM2594M-5.0/NOPB

LM2594M-5.0/NOPB

IC REG BUCK 5V 500MA 8SOIC

Texas Instruments

4,531
LM2594M-5.0/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 4.5V Buck 40V 5V - 500mA 150kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LM2674M-3.3/NOPB

LM2674M-3.3/NOPB

IC REG BUCK 3.3V 500MA 8SOIC

Texas Instruments

2,791
LM2674M-3.3/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 6.5V Buck 40V 3.3V - 500mA 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LM2674M-5.0/NOPB

LM2674M-5.0/NOPB

IC REG BUCK 5V 500MA 8SOIC

Texas Instruments

1,789
LM2674M-5.0/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 6.5V Buck 40V 5V - 500mA 260kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
LM2594M-3.3/NOPB

LM2594M-3.3/NOPB

IC REG BUCK 3.3V 500MA 8SOIC

Texas Instruments

1,624
LM2594M-3.3/NOPB

Datasheet

SIMPLE SWITCHER® 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Down Positive Fixed 1 4.5V Buck 40V 3.3V - 500mA 150kHz - No - -40°C ~ 125°C (TJ) Surface Mount 8-SOIC
MAX17644BATE+

MAX17644BATE+

IC REG BUCK 5V 2.7A 16TQFN

Analog Devices Inc./Maxim Integrated

20,935
MAX17644BATE+

Datasheet

Himalaya 16-WFQFN Exposed Pad Tray Active Step-Down Positive Fixed 1 4.5V Buck 36V 5V - 2.7A 400kHz ~ 2.2MHz - Yes - -40°C ~ 125°C (TA) Surface Mount 16-TQFN (3x3)
TPS54821RHLT

TPS54821RHLT

IC REG BUCK ADJ 8A 14VQFN

Texas Instruments

1,674
TPS54821RHLT

Datasheet

SWIFT™ 14-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 17V 0.6V 15V 8A 200kHz ~ 1.6MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 14-VQFN (3.5x3.5)
ISL8012IRZ-T

ISL8012IRZ-T

IC REG BUCK ADJ 2A 10DFN

Renesas Electronics Corporation

31,982
ISL8012IRZ-T

Datasheet

- 10-VFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.7V Buck 5.5V 0.8V 5.5V 2A 1MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 10-DFN (3x3)
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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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