DC DC Switching Controllers

Manufacturer Series Package/Case Packaging Product Status Output Type Function Output Configuration Topology Number of Outputs Output Phases Voltage - Supply (Vcc/Vdd) Frequency - Switching Duty Cycle (Max) Synchronous Rectifier Clock Sync Serial Interfaces Control Features Operating Temperature Grade Qualification Mounting Type Supplier Device Package





















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package/Case Packaging Product Status Output Type Function Output Configuration Topology Number of Outputs Output Phases Voltage - Supply (Vcc/Vdd) Frequency - Switching Duty Cycle (Max) Synchronous Rectifier Clock Sync Serial Interfaces Control Features Operating Temperature Grade Qualification Mounting Type Supplier Device Package
LTC3895HFE Analog Devices Inc.

LTC3895HFE

IC POWER MANAGEMENT

Analog Devices Inc.

1,481
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad Tube Obsolete Transistor Driver Step-Down Positive Buck 1 1 4V ~ 140V 50kHz ~ 900kHz 100% Yes No - Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start -40°C ~ 150°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3895IFE Analog Devices Inc.

LTC3895IFE

IC POWER MANAGEMENT

Analog Devices Inc.

1,711
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad Tube Obsolete Transistor Driver Step-Down Positive Buck 1 1 4V ~ 140V 50kHz ~ 900kHz 100% Yes No - Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3896EFE Analog Devices Inc.

LTC3896EFE

IC POWER MANAGEMENT

Analog Devices Inc.

3,114
RFQ
LTC3896EFE Datasheet

Datasheet

- 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad Tube Obsolete Transistor Driver Step-Up/Step-Down Negative Buck-Boost 1 1 4V ~ 140V 50kHz ~ 900kHz 99% No No - Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3896HFE Analog Devices Inc.

LTC3896HFE

IC POWER MANAGEMENT

Analog Devices Inc.

1,438
RFQ
LTC3896HFE Datasheet

Datasheet

- 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad Tube Obsolete Transistor Driver Step-Up/Step-Down Negative Buck-Boost 1 1 4V ~ 140V 50kHz ~ 900kHz 99% No No - Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start -40°C ~ 150°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3896IFE Analog Devices Inc.

LTC3896IFE

IC POWER MANAGEMENT

Analog Devices Inc.

4,848
RFQ
LTC3896IFE Datasheet

Datasheet

- 38-TFSOP (0.173", 4.40mm Width) 31 Leads, Exposed Pad Tube Obsolete Transistor Driver Step-Up/Step-Down Negative Buck-Boost 1 1 4V ~ 140V 50kHz ~ 900kHz 99% No No - Current Limit, Enable, Frequency Control, Phase Control, Power Good, Soft Start -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3897EFE Analog Devices Inc.

LTC3897EFE

IC POWER MANAGEMENT

Analog Devices Inc.

2,925
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Tube Obsolete Transistor Driver Step-Up Positive Boost 2 2 4.5V ~ 65V 75kHz ~ 850kHz - Yes Yes - Current Limit, Frequency Control, Overcurrent, Ramping -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3897HFE Analog Devices Inc.

LTC3897HFE

IC POWER MANAGEMENT

Analog Devices Inc.

3,083
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Tube Obsolete Transistor Driver Step-Up Positive Boost 2 2 4.5V ~ 65V 75kHz ~ 850kHz - Yes Yes - Current Limit, Frequency Control, Overcurrent, Ramping -40°C ~ 150°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3897IFE Analog Devices Inc.

LTC3897IFE

IC POWER MANAGEMENT

Analog Devices Inc.

1,639
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Tube Obsolete Transistor Driver Step-Up Positive Boost 2 2 4.5V ~ 65V 75kHz ~ 850kHz - Yes Yes - Current Limit, Frequency Control, Overcurrent, Ramping -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3899EFE Analog Devices Inc.

LTC3899EFE

IC POWER MANAGEMENT

Analog Devices Inc.

1,948
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Tube Obsolete Transistor Driver Step-Down Positive Buck, Buck-Boost 3 2 4.5V ~ 60V 105kHz ~ 835kHz, 350kHz ~ 535kHz 100% Yes No - Enable, Frequency Control, Soft Start, Tracking -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3899HFE Analog Devices Inc.

LTC3899HFE

IC POWER MANAGEMENT

Analog Devices Inc.

3,823
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Tube Obsolete Transistor Driver Step-Down Positive Buck, Buck-Boost 3 2 4.5V ~ 60V 105kHz ~ 835kHz, 350kHz ~ 535kHz 100% Yes No - Enable, Frequency Control, Soft Start, Tracking -40°C ~ 150°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3899IFE Analog Devices Inc.

LTC3899IFE

IC POWER MANAGEMENT

Analog Devices Inc.

4,272
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Tube Obsolete Transistor Driver Step-Down Positive Buck, Buck-Boost 3 2 4.5V ~ 60V 105kHz ~ 835kHz, 350kHz ~ 535kHz 100% Yes No - Enable, Frequency Control, Soft Start, Tracking -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3899MPFE Analog Devices Inc.

LTC3899MPFE

IC POWER MANAGEMENT

Analog Devices Inc.

4,891
RFQ

-

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Tube Obsolete Transistor Driver Step-Down Positive Buck, Buck-Boost 3 2 4.5V ~ 60V 105kHz ~ 835kHz, 350kHz ~ 535kHz 100% Yes No - Enable, Frequency Control, Soft Start, Tracking -55°C ~ 150°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC7851EUHH Analog Devices Inc.

LTC7851EUHH

IC POWER MANAGEMENT

Analog Devices Inc.

2,639
RFQ

-

- 58-WFQFN Exposed Pad Tube Obsolete PWM Signal Step-Down Positive Buck 4 1 3V ~ 5.5V 250kHz ~ 3MHz 91.5% No No - Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking -40°C ~ 125°C - - Surface Mount 58-QFN (5x9)
LTC7851EUHH-1 Analog Devices Inc.

LTC7851EUHH-1

IC POWER MANAGEMENT

Analog Devices Inc.

1,524
RFQ

-

- 58-WFQFN Exposed Pad Tube Obsolete PWM Signal Step-Down Positive Buck 4 1 3V ~ 5.5V 250kHz ~ 3MHz 91.5% No No - Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking -40°C ~ 125°C - - Surface Mount 58-QFN (5x9)
LTC7851IUHH Analog Devices Inc.

LTC7851IUHH

IC POWER MANAGEMENT

Analog Devices Inc.

2,702
RFQ

-

- 58-WFQFN Exposed Pad Tube Obsolete PWM Signal Step-Down Positive Buck 4 1 3V ~ 5.5V 250kHz ~ 3MHz 91.5% No No - Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking -40°C ~ 125°C - - Surface Mount 58-QFN (5x9)
LTC7851IUHH-1 Analog Devices Inc.

LTC7851IUHH-1

IC POWER MANAGEMENT

Analog Devices Inc.

3,941
RFQ

-

- 58-WFQFN Exposed Pad Tube Obsolete PWM Signal Step-Down Positive Buck 4 1 3V ~ 5.5V 250kHz ~ 3MHz 91.5% No No - Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking -40°C ~ 125°C - - Surface Mount 58-QFN (5x9)
R7521GN Richtek USA Inc.

R7521GN

IC REGULATOR DIP

Richtek USA Inc.

2,598
RFQ
R7521GN Datasheet

Datasheet

- 16-DIP (0.300", 7.62mm) Tube Obsolete PWM - Positive Half-Bridge, Push-Pull 4 - 4V ~ 6V 60kHz 46% No No - Enable, Power Good -40°C ~ 85°C (TA) - - Through Hole 16-DIP
R7521GS Richtek USA Inc.

R7521GS

IC REGULATOR SOIC

Richtek USA Inc.

4,166
RFQ
R7521GS Datasheet

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Tube Obsolete PWM - Positive Half-Bridge, Push-Pull 4 - 4V ~ 6V 60kHz 46% No No - Enable, Power Good -40°C ~ 85°C (TA) - - Surface Mount 16-SOP
ISL81601FRZ-T7A Renesas Electronics Corporation

ISL81601FRZ-T7A

SWITCH SYNCH BUCK-BOOST PWM

Renesas Electronics Corporation

4,039
RFQ
ISL81601FRZ-T7A Datasheet

Datasheet

- 32-VFQFN Exposed Pad Tape & Reel (TR) Obsolete PWM Signal Step-Up/Step-Down Positive Buck-Boost 1 2 4.5V ~ 60V 90kHz ~ 650kHz - Yes Yes - Current Limit, Enable, Power Good -40°C ~ 125°C (TA) - - Surface Mount 32-QFN (5x5)
MAX771C/D Analog Devices Inc./Maxim Integrated

MAX771C/D

IC SUPERVISOR

Analog Devices Inc./Maxim Integrated

2,697
RFQ
MAX771C/D Datasheet

Datasheet

- Die Bulk Obsolete Transistor Driver Step-Up Positive Boost 1 1 3V ~ 16.5V 300kHz - No No - Enable 0°C ~ 70°C (TA) - - - Dice
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DC DC Switching Controllers Electronic Components Sourcing and Lifecycle Support

FPGAX is a global sourcing partner specializing in FPGA and programmable logic solutions for engineering and manufacturing organizations worldwide. For customers sourcing DC DC Switching Controllers components, we support both current production requirements and long-term component availability across demanding product lifecycles.

Our sourcing approach combines traceability, supply stability, and technical coordination. FPGAX is certified to AS9120B, ISO 9001:2008, and ISO 14001 standards and supports procurement programs where continuity, documentation, and dependable component supply are important.

How FPGAX Supports DC DC Switching Controllers Requirements

  • Active component sourcing: support for current FPGA, programmable logic, and related semiconductor requirements.
  • End-of-life sourcing: assistance with obsolete and hard-to-find parts when designs must remain in production.
  • Lifecycle management: sourcing support during product transitions, allocation periods, and supply interruptions.
  • Design continuity: long-term supply support intended to reduce redesign pressure and production disruption.
  • Major programmable logic brands: sourcing coverage includes Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic.

Supply Support at a Glance

Requirement FPGAX Support
Current production Active FPGA, programmable logic, and semiconductor component sourcing
Legacy programs End-of-life and hard-to-find component sourcing
Supply continuity Lifecycle transition and long-term availability support
Quality requirements Traceable sourcing and quality-management processes

Focused on FPGA and Programmable Logic Supply

FPGAX focuses on helping customers maintain access to critical programmable devices throughout the full component lifecycle. Whether the requirement is for a current design, an established production program, or an older platform facing component obsolescence, our goal is to provide a stable sourcing path and help customers maintain design and manufacturing continuity.

DC DC Switching Controllers FAQ

Can FPGAX source both active and end-of-life DC DC Switching Controllers components?

Yes. FPGAX supports sourcing for both active components and end-of-life or hard-to-find parts, with an emphasis on maintaining supply continuity for engineering and manufacturing programs.

Which programmable logic manufacturers does FPGAX support?

Our core sourcing coverage includes major FPGA and programmable logic manufacturers such as Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic, subject to specific part requirements and availability.

How does FPGAX help with component lifecycle changes?

We support customers through lifecycle transitions by helping locate current or legacy supply, reducing exposure to supply disruptions, and supporting long-term availability for designs that need to remain in production.

What quality and traceability standards does FPGAX follow?

FPGAX states certification to AS9120B, ISO 9001:2008, and ISO 14001 standards. Our sourcing services are structured around traceability, stable supply, and quality-management requirements.

What information should I provide for a DC DC Switching Controllers sourcing request?

Providing the manufacturer part number, required quantity, target delivery schedule, and any lifecycle or traceability requirements helps us evaluate the sourcing request more efficiently.