Voltage Regulators - Switching Regulators

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LTC7803 Synchronous Step-Down Controllers

Analog Devices Inc. LTC7803 Synchronous Step-Down Controllers are high-performance, 100% duty cycle capable, synchronous step-down DC/DC switching regulator controllers that drive an all N-channel power MOSFET stage. Synchronous rectification increases efficiency, reduces power losses, and eases thermal requirements. A constant frequency current mode architecture allows a phase-lockable switching frequency of up to 3MHz. Analog Devices LTC7803 Synchronous Step-Down Controllers operate from a wide 4.5V to 40V input supply range.

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Part #

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JMSE#PBF
Analog Devices
1: $9.15
185In Stock

Mfr. Part No.
LTC7803JMSE#PBF

Mouser Part No
584-LTC7803JMSE#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

185In Stock

$9.15

$7.02

$6.45

$5.89

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803EMSE#PBF
Analog Devices
1: $8.28
950In Stock

Mfr. Part No.
LTC7803EMSE#PBF

Mouser Part No
584-LTC7803EMSE#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

950In Stock

$8.28

$6.35

$5.79

$5.32

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803EUD#PBF
Analog Devices
1: $8.28
603In Stock

Mfr. Part No.
LTC7803EUD#PBF

Mouser Part No
584-LTC7803EUD#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

603In Stock

$8.28

$6.35

$5.88

$5.37

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803HMSE#PBF
Analog Devices
1: $10.30
148In Stock

Mfr. Part No.
LTC7803HMSE#PBF

Mouser Part No
584-LTC7803HMSE#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

148In Stock

$10.30

$7.96

$7.17

$6.68

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803HUD#PBF
Analog Devices
1: $10.30
71In Stock

Mfr. Part No.
LTC7803HUD#PBF

Mouser Part No
584-LTC7803HUD#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

71In Stock

$10.30

$7.96

$7.37

$6.65

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803IMSE#PBF
Analog Devices
1: $9.07
250In Stock

Mfr. Part No.
LTC7803IMSE#PBF

Mouser Part No
584-LTC7803IMSE#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

250In Stock

$9.07

$6.98

$6.36

$6.02

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JMSE#WPBF
Analog Devices
1: $10.36
186In Stock
330On Order

Mfr. Part No.
LTC7803JMSE#WPBF

Mouser Part No
584-LTC7803JMSE#WPBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

186In Stock

330On Order

$10.36

$8.01

$7.21

$6.72

View

Min.: 1
Mult.: 1

SMD/SMT

MSOP-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JUD#PBF
Analog Devices
1: $9.23
169In Stock

Mfr. Part No.
LTC7803JUD#PBF

Mouser Part No
584-LTC7803JUD#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

169In Stock

$9.23

$7.09

$6.56

$6.11

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JUD#WPBF
Analog Devices
1: $10.36
146In Stock

Mfr. Part No.
LTC7803JUD#WPBF

Mouser Part No
584-LTC7803JUD#WPBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

146In Stock

$10.36

$8.01

$7.41

$6.83

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

AEC-Q100

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803IUD#PBF
Analog Devices
1: $8.99
121Expected 27/7/2026

Mfr. Part No.
LTC7803IUD#PBF

Mouser Part No
584-LTC7803IUD#PBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

121Expected 27/7/2026

$8.99

$6.90

$6.36

$5.56

View

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Buck

800 mV to 40 V

20 A

1 Output

1.2 uA

100 kHz to 3 MHz

- 40 C

+ 125 C

LTC7803

Tube

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803EMSE#TRPBF
Analog Devices
2,500: $4.72
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803EMSE#TRPBF

Mouser Part No
584-LTC7803EMSE#TRPB

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$4.72

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

MSOP-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803EUD#TRPBF
Analog Devices
2,500: $4.75
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803EUD#TRPBF

Mouser Part No
584-LTC7803EUD#TRPBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$4.75

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

QFN-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803HMSE#TRPBF
Analog Devices
2,500: $5.82
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803HMSE#TRPBF

Mouser Part No
584-LTC7803HMSE#TRPB

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.82

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

MSOP-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803HUD#TRPBF
Analog Devices
2,500: $5.89
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803HUD#TRPBF

Mouser Part No
584-LTC7803HUD#TRPBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.89

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

QFN-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803IMSE#TRPBF
Analog Devices
2,500: $5.21
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803IMSE#TRPBF

Mouser Part No
584-LTC7803IMSE#TRPB

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.21

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

MSOP-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803IUD#TRPBF
Analog Devices
2,500: $5.18
Non-Stocked Lead-Time 21 Weeks

Mfr. Part No.
LTC7803IUD#TRPBF

Mouser Part No
584-LTC7803IUD#TRPBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 21 Weeks

Reel

$5.18

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

QFN-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JMSE#TRPBF
Analog Devices
2,500: $5.29
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803JMSE#TRPBF

Mouser Part No
584-LTC7803JMSE#TRPB

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.29

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

MSOP-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JMSE#WTRPBF
Analog Devices
2,500: $5.93
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803JMSE#WTRPBF

Mouser Part No
584-LTC7803JMSEWTRPB

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.93

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

MSOP-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JUD#TRPBF
Analog Devices
2,500: $5.28
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803JUD#TRPBF

Mouser Part No
584-LTC7803JUD#TRPBF

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.28

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

QFN-16

1 Output

LTC7803

Reel

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

LTC7803JUD#WTRPBF
Analog Devices
2,500: $5.85
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
LTC7803JUD#WTRPBF

Mouser Part No
584-LTC7803JUD#WTRPB

Analog Devices

Switching Voltage Regulators 40V Low IQ, 3MHz Synchronous Step-Down Controller with Spread Spectrum

Learn More

Datasheet

Non-Stocked Lead-Time 14 Weeks

Reel

$5.85

Quote

Min.: 2,500
Mult.: 2,500

: 2,500

SMD/SMT

QFN-16

1 Output

AEC-Q100

LTC7803

Reel

LTC7803 Synchronous Step-Down Controllers

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