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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
LTC3315AIV#TRMPBF

LTC3315AIV#TRMPBF

IC REG BUCK 0.5V 2A DL 12LQFN

Analog Devices Inc.

1,051
LTC3315AIV#TRMPBF

Datasheet

- 12-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Fixed 2 2.25V Buck 5.5V 0.5V 5.5V 2A 1MHz ~ 3MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 12-LQFN (2x2)
LM2577T-ADJ/LF03

LM2577T-ADJ/LF03

IC REG BST FLYBCK ADJ 3A TO220-5

Texas Instruments

272
LM2577T-ADJ/LF03

Datasheet

SIMPLE SWITCHER® TO-220-5 Formed Leads Tube Active Step-Up, Step-Up/Step-Down Positive Adjustable 1 3.5V Boost, Flyback, Forward Converter 40V 1.23V 60V (Switch) 3A (Switch) 52kHz - No - -40°C ~ 125°C (TJ) Through Hole TO-220-5
LT3971EDD#PBF

LT3971EDD#PBF

IC REG BUCK ADJ 1.2A 10DFN

Analog Devices Inc.

16,063
LT3971EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 4.3V Buck 38V 1.19V 30V 1.2A 200kHz ~ 2MHz - No - -40°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LT1938EDD#PBF

LT1938EDD#PBF

IC REG BUCK ADJ 2.2A 10DFN

Analog Devices Inc.

3,261
LT1938EDD#PBF

Datasheet

- 10-WFDFN Exposed Pad Tube Active Step-Down Positive Adjustable 1 3.6V Buck 25V 1.265V 20V 2.2A 300kHz ~ 3MHz - No - 0°C ~ 125°C (TJ) Surface Mount 10-DFN (3x3)
LM21212MHE-1/NOPB

LM21212MHE-1/NOPB

IC REG BUCK ADJ 12A 20HTSSOP

Texas Instruments

636
LM21212MHE-1/NOPB

Datasheet

- 20-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.95V Buck 5.5V 0.6V 5.5V 12A 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-HTSSOP
LM21212MHE-2/NOPB

LM21212MHE-2/NOPB

IC REG BUCK ADJ 12A 20HTSSOP

Texas Instruments

266
LM21212MHE-2/NOPB

Datasheet

- 20-PowerTSSOP (0.173", 4.40mm Width) Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.95V Buck 5.5V 0.6V 5.5V 12A 300kHz ~ 1.55MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-HTSSOP
LMS36555QRNLTQ1

LMS36555QRNLTQ1

IC REG BUCK 5V 5.5A 22VQFN

Texas Instruments

1,264
LMS36555QRNLTQ1

Datasheet

- 22-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.9V Buck 36V 5V - 5.5A 250kHz ~ 500kHz AEC-Q100 No Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 22-VQFN-HR (5x4)
LMS3655NQRNLTQ1

LMS3655NQRNLTQ1

IC REG BUCK 3.3V 5.5A 22VQFN

Texas Instruments

1,215
LMS3655NQRNLTQ1

Datasheet

- 22-PowerVFQFN Tape & Reel (TR) Active Step-Down Positive Fixed 1 3.9V Buck 36V 3.3V - 5.5A 250kHz ~ 500kHz AEC-Q100 No Automotive -40°C ~ 125°C (TA) Surface Mount, Wettable Flank 22-VQFN-HR (5x4)
LP875610RNFTQ1

LP875610RNFTQ1

IC REG BUCK ADJ 16A QUAD 26VQFN

Texas Instruments

1,350
LP875610RNFTQ1

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)
TPS53315RGFT

TPS53315RGFT

IC REG BUCK ADJ 12A 40VQFN

Texas Instruments

743
TPS53315RGFT

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)
MAX1822ESA+

MAX1822ESA+

IC REG CHARG PUMP INV 25MA 8SOIC

Analog Devices Inc./Maxim Integrated

348
MAX1822ESA+

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Ratiometric Positive Fixed 1 3.5V Charge Pump 16.5V Vin+11V - 25mA 90kHz - No - -40°C ~ 85°C (TA) Surface Mount 8-SOIC
LP875640RNFTQ1

LP875640RNFTQ1

IC REG BUCK ADJ 16A QUAD 26VQFN

Texas Instruments

167
LP875640RNFTQ1

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)
LTC1550LCS8-4.1#PBF

LTC1550LCS8-4.1#PBF

IC REG CHARG PUMP -4.1V 20MA 8SO

Analog Devices Inc.

161
LTC1550LCS8-4.1#PBF

Datasheet

- 8-SOIC (0.154", 3.90mm Width) Tube Active Step-Up/Step-Down Negative Fixed 1 4.5V Charge Pump 5.5V -4.1V - 20mA 900kHz - No - 0°C ~ 70°C (TA) Surface Mount 8-SO
LTC3448EMS8E#PBF

LTC3448EMS8E#PBF

IC REG BUCK ADJ 600MA 8MSOP

Analog Devices Inc.

1,248
LTC3448EMS8E#PBF

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad Tube Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5.2V 600mA 1.5MHz ~ 2.25MHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-MSOP-EP
MPQ4470GL-P

MPQ4470GL-P

IC REG BUCK ADJ 5A 20QFN

Monolithic Power Systems Inc.

1,367
MPQ4470GL-P

Datasheet

- 20-VFQFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 4.5V Buck 36V 0.8V 32.4V 5A 100kHz ~ 1MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 20-QFN (3x4)
MAX1678EUA+

MAX1678EUA+

IC REG BST ADJ/2V 550MA 8UMAX

Analog Devices Inc./Maxim Integrated

1,224
MAX1678EUA+

Datasheet

- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Tube Active Step-Up Positive Adjustable (Fixed) 1 0.7V Boost 5.5V 2V (3.3V) 5.5V 550mA (Switch) 150kHz - Yes - -40°C ~ 85°C (TA) Surface Mount 8-uMAX/uSOP
LT1307CN8#PBF

LT1307CN8#PBF

IC REG BOOST ADJ 600MA 8PDIP

Analog Devices Inc.

117
LT1307CN8#PBF

Datasheet

- 8-DIP (0.300", 7.62mm) Tube Active Step-Up Positive Adjustable 1 1V Boost 5V 1.22V 30V (Switch) 600mA (Switch) 600kHz - No - -20°C ~ 70°C (TA) Through Hole 8-PDIP
LTC3542IDC#TRPBF

LTC3542IDC#TRPBF

IC REG BUCK ADJ 500MA 6DFN

Analog Devices Inc.

3,400
LTC3542IDC#TRPBF

Datasheet

- 6-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5.5V 500mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 6-DFN (2x2)
LTC3542IS6#TRMPBF

LTC3542IS6#TRMPBF

IC REG BUCK ADJ 500MA TSOT23-6

Analog Devices Inc.

1,246
LTC3542IS6#TRMPBF

Datasheet

- SOT-23-6 Thin, TSOT-23-6 Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5.5V 500mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount TSOT-23-6
LTC3542IDC#TRMPBF

LTC3542IDC#TRMPBF

IC REG BUCK ADJ 500MA 6DFN

Analog Devices Inc.

947
LTC3542IDC#TRMPBF

Datasheet

- 6-WFDFN Exposed Pad Tape & Reel (TR) Active Step-Down Positive Adjustable 1 2.5V Buck 5.5V 0.6V 5.5V 500mA 2.25MHz - Yes - -40°C ~ 125°C (TJ) Surface Mount 6-DFN (2x2)
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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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