LT3999 DC-DC Transformer Driver

Analog Devices Inc. LT3999 DC-DC Transformer Driver is a monolithic, high-voltage, high-frequency, push-pull DC-DC driver designed to provide isolated power in a small solution footprint. The LT3999 includes functions such as duty cycle control, soft start, and protection features such as overvoltage lockout (OVLO), undervoltage lockout (UVLO), and thermal shutdown. The LT3999 has two 1A current limited power switches that switch out of phase. The duty cycle is programmable to adjust the output voltage. The switching frequency is programmed up to 1MHz and can be synchronized to an external clock for more accurate placement of switcher harmonics. 

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
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Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
548In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT DFN-10 Push-Pull Adjustable 1 A 1 Output 1 MHz - 40 C + 125 C LT3999 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
2.342In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 2.342
: 2.500

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 100 nA 1 MHz - 40 C + 150 C LT3999 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
410In Stock
Min.: 1
Mult.: 1

SMD/SMT DFN-10 Push-Pull Adjustable 1 A 1 Output 100 nA 1 MHz - 40 C + 125 C LT3999 Tube
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
1.632In Stock
Min.: 1
Mult.: 1
Max.: 1.632

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 100 nA 1 MHz - 40 C + 125 C LT3999 Tube
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
1.873In Stock
MouseReel Available
Min.: 1
Mult.: 1
Max.: 1.873
: 2.500

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 1 MHz - 40 C + 125 C LT3999 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
1.125In Stock
Min.: 1
Mult.: 1
Max.: 1.125

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 100 nA 1 MHz - 40 C + 150 C LT3999 Tube
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
1.726In Stock
350Expected 9/15/2026
Min.: 1
Mult.: 1
Max.: 2.076

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 100 nA 1 MHz - 40 C + 125 C LT3999 Tube
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
20In Stock
Min.: 1
Mult.: 1
Max.: 20

SMD/SMT DFN-10 Push-Pull Adjustable 1 A 1 Output 100 nA 1 MHz - 40 C + 125 C LT3999 Tube
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
5In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 1 MHz - 40 C + 125 C LT3999 Reel, Cut Tape, MouseReel
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

SMD/SMT DFN-10 Push-Pull Adjustable 1 A 1 Output 1 MHz - 40 C + 125 C LT3999 Reel
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 1
Mult.: 1

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 100 nA 1 MHz - 55 C + 150 C LT3999 Tube
Analog Devices Switching Voltage Regulators L N, 1A, 1MHz PP DC/DC Drvr w/ Duty Cycl
Datasheet
Non-Stocked Lead-Time 14 Weeks
Min.: 2.500
Mult.: 2.500
: 2.500

SMD/SMT MSOP-10 Push-Pull Adjustable 1 A 1 Output 1 MHz - 55 C + 150 C LT3999 Reel