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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DC DC Switching Controllers

DC-DC switching controllers are power management ICs used to control external power switches for efficient voltage conversion. They support buck, boost, buck-boost, flyback, and other switching topologies, and are commonly used in power supplies, industrial equipment, automotive electronics, communication systems, servers, battery-powered devices, and embedded applications.

TomatoElec is an independent electronic components distributor supplying DC-DC switching controller ICs from mainstream manufacturers such as Texas Instruments, Analog Devices, STMicroelectronics, onsemi, Infineon, Microchip, Renesas, NXP, Diodes Incorporated, and Monolithic Power Systems. Customers can check inventory, price, package, specifications, parameters and PDF datasheets in the product list below, and submit a BOM or RFQ for DC-DC switching controller sourcing support.

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
LTC1709EG-85#PBF

LTC1709EG-85#PBF

LTC1709-85 - HI PWR POLYPHASE DC

Linear Technology

444 -
RFQ
LTC1709EG-85#PBF

Datasheet

- 36-SSOP (0.209", 5.30mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 2 2 4V ~ 36V 140kHz ~ 310kHz 99.5% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 36-SSOP
LTC3732CG#TRPBF

LTC3732CG#TRPBF

SWITCHING CONTROLLER, CURRENT-MO

Linear Technology

2,000 -
RFQ
LTC3732CG#TRPBF

Datasheet

PolyPhase® 36-SSOP (0.209", 5.30mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 3 3 4.5V ~ 7V 225kHz ~ 680kHz 98.5% Yes No - Enable, Power Good, Soft Start 0°C ~ 70°C (TA) - - Surface Mount 36-SSOP
UC3524AJ

UC3524AJ

UC3524AM ADVANCED REGULATING PUL

Unitrode

3,798 -
RFQ
UC3524AJ

Datasheet

- 16-CDIP (0.300", 7.62mm) Bulk Active Transistor Driver Step-Up, Step-Up/Step-Down Positive Boost, Buck, Flyback, Forward Converter, Full-Bridge, Half-Bridge, Push-Pull 2 1 8V ~ 40V 500kHz 45% No No - Frequency Control 0°C ~ 70°C (TA) - - Through Hole 16-CDIP
LTC3859ALEFE#PBF

LTC3859ALEFE#PBF

TRIPLE OUTPUT, BUCK/BUCK/BOOST S

Linear Technology

650 -
RFQ
LTC3859ALEFE#PBF

Datasheet

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Bulk Active Transistor Driver Step-Down, Step-Up/Step-Down Positive Buck, Buck-Boost, SEPIC 3 2 4.5V ~ 38V 115kHz ~ 835kHz, 350kHz ~ 535kHz 99%, 100% Yes No - Enable, Frequency Control, Power Good, Soft Start, Tracking -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3859AEFE#PBF

LTC3859AEFE#PBF

DUAL SWITCHING CONTROLLER, CURRE

Linear Technology

503 -
RFQ
LTC3859AEFE#PBF

Datasheet

- 38-TFSOP (0.173", 4.40mm Width) Exposed Pad Bulk Active Transistor Driver Step-Down, Step-Up/Step-Down Positive Buck, Buck-Boost, SEPIC 3 2 4.5V ~ 38V 115kHz ~ 835kHz, 350kHz ~ 535kHz 99%, 100% Yes No - Enable, Frequency Control, Power Good, Soft Start, Tracking -40°C ~ 125°C (TJ) - - Surface Mount 38-TSSOP-EP
LTC3728LEGN#PBF

LTC3728LEGN#PBF

LTC3728 - 550KHZ, DUAL, 2PHASE C

Linear Technology

196 -
RFQ
LTC3728LEGN#PBF

Datasheet

- 28-SSOP (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 2 2 4.5V ~ 28V 260kHz ~ 550kHz 99.4% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 28-SSOP
LTC1628CUH#PBF

LTC1628CUH#PBF

LTC1628 - DUAL 2-PHASE STEP DOWN

Linear Technology

365 -
RFQ
LTC1628CUH#PBF

Datasheet

- 32-WFQFN Exposed Pad Bulk Obsolete Transistor Driver Step-Down Positive Buck 2 2 3.5V ~ 30V 220kHz, 140kHz ~ 310kHz 99.4% Yes No - Current Limit, Dead Time Control, Enable, Frequency Control, Power Good, Soft Start 0°C ~ 85°C - - Surface Mount 32-QFN (5x5)
LTC3728LEUH#PBF

LTC3728LEUH#PBF

DUAL, 550KHZ, 2-PHASE SYNCHRONOU

Linear Technology

964 -
RFQ
LTC3728LEUH#PBF

Datasheet

- 32-WFQFN Exposed Pad Bulk Active Transistor Driver Step-Down Positive Buck 2 2 4.5V ~ 28V 260kHz ~ 550kHz 99.4% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 32-QFN (5x5)
LTC1708EG-PG#PBF

LTC1708EG-PG#PBF

DUAL SWITCHING CONTROLLER, CURRE

Linear Technology

407 -
RFQ
LTC1708EG-PG#PBF

Datasheet

- 36-SSOP (0.209", 5.30mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 2 2 3.5V ~ 30V 220kHz 99.4% Yes No - Enable, Frequency Control, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 36-SSOP
LTC3826EG-1#PBF

LTC3826EG-1#PBF

LTC3826-1 - ULTRA LOW IQ, DUAL,

Linear Technology

1,504 -
RFQ
LTC3826EG-1#PBF

Datasheet

- 28-SSOP (0.209", 5.30mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 2 2 4V ~ 36V 250kHz ~ 530kHz 99.4% Yes No - Enable, Power Good, Soft Start, Tracking -40°C ~ 85°C (TA) - - Surface Mount 28-SSOP
LTC1143CS#PBF

LTC1143CS#PBF

LTC1143 - DUAL HIGH EFFICIENCY S

Linear Technology

2,050 -
RFQ
LTC1143CS#PBF

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Down, Step-Up/Step-Down Positive Buck, Buck-Boost 2 1 4V ~ 14V Up to 400kHz 1 No No - Current Limit, Enable -40°C ~ 85°C (TA) - - Surface Mount 16-SO
UCC2806D

UCC2806D

UCC2806 LOW POWER, DUAL OUTPUT,

Unitrode

635 -
RFQ
UCC2806D

Datasheet

- 16-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Up, Step-Up/Step-Down Positive, Isolation Capable Boost, Flyback, Forward Converter 2 1 8V ~ 14.5V 47kHz 50% Yes No - Current Limit, Enable, Frequency Control -40°C ~ 85°C (TA) - - Surface Mount 16-SOIC
LTC3728LIGN#TRPBF

LTC3728LIGN#TRPBF

LTC3728 - 550KHZ, DUAL, 2 PHASE

Linear Technology

2,390 -
RFQ
LTC3728LIGN#TRPBF

Datasheet

- 28-SSOP (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 2 2 4.5V ~ 28V 260kHz ~ 550kHz 99.4% Yes No - Enable, Power Good, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 28-SSOP
LTC3826EUH#PBF

LTC3826EUH#PBF

LTC3826 - ULTRA LOW IQ, DUAL, 2-

Linear Technology

696 -
RFQ
LTC3826EUH#PBF

Datasheet

PolyPhase® 32-WFQFN Exposed Pad Bulk Active Transistor Driver Step-Down Positive Buck 2 2 4V ~ 36V 250kHz ~ 530kHz 99.4% Yes No - Enable, Power Good, Soft Start, Tracking -40°C ~ 85°C (TA) - - Surface Mount 32-QFN (5x5)
LT3781EG#PBF

LT3781EG#PBF

LT3781 - SYNC. FORWARD CONTROLLE

Linear Technology

462 -
RFQ
LT3781EG#PBF

Datasheet

- 20-SSOP (0.209", 5.30mm Width) Bulk Obsolete Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Forward Converter 1 1 9V ~ 18V Up to 700kHz 50% No Yes - Enable, Soft Start -40°C ~ 85°C (TA) - - Surface Mount 20-SSOP
LTC3731HUH#PBF

LTC3731HUH#PBF

3-PHASE, 600 KHZ, SYNCHRONOUS BU

Linear Technology

154 -
RFQ
LTC3731HUH#PBF

Datasheet

PolyPhase® 32-WFQFN Exposed Pad Bulk Active Transistor Driver Step-Down Positive Buck 3 3 3.8V ~ 7V 225kHz ~ 680kHz 98.5% Yes No - Enable, Phase Control, Power Good, Soft Start -40°C ~ 140°C (TJ) - - Surface Mount 32-QFN (5x5)
UC2825BN

UC2825BN

UC2825B HIGH SPEED PWM CONTROLLE

Unitrode

4,897 -
RFQ
UC2825BN

Datasheet

* - Bulk Active - - - - - - - - - - - - - - - - - -
UC3526AJ

UC3526AJ

UC3526AM REGULATING PULSE WIDTH

Texas Instruments

139 -
RFQ
UC3526AJ

Datasheet

- 18-CDIP (0.300", 7.62mm) Bulk Active Transistor Driver Step-Up, Step-Down Positive Boost, Buck, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull 2 1 7V ~ 35V 1Hz ~ 400kHz 49% Yes Yes - Enable, Frequency Control, Reset, Soft Start 0°C ~ 70°C (TA) - - Through Hole 18-CDIP
LTC1702CGN#TRPBF

LTC1702CGN#TRPBF

DUAL 550KHZ SYNCHRONOUS 2-PHASE

Linear Technology

954 -
RFQ
LTC1702CGN#TRPBF

Datasheet

- 24-SSOP (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 2 2 3V ~ 7V 550kHz 90% Yes No - Current Limit, Enable, Power Good, Soft Start 0°C ~ 70°C (TA) - - Surface Mount 24-SSOP
LTC1148LCS#PBF

LTC1148LCS#PBF

SWITCHING CONTROLLER, CURRENT-MO

Linear Technology

165 -
RFQ
LTC1148LCS#PBF

Datasheet

- 14-SOIC (0.154", 3.90mm Width) Bulk Active Transistor Driver Step-Down Positive Buck 1 1 3.5V ~ 20V Up to 250kHz 100% Yes No - Current Limit, Enable 0°C ~ 70°C (TA) - - Surface Mount 14-SO
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