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: £5.05
183In 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

183In Stock

£5.05

£3.88

£3.56

£3.25

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: £4.57
893In 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

893In Stock

£4.57

£3.51

£3.20

£2.93

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: £4.57
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

£4.57

£3.51

£3.25

£2.97

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: £5.68
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

£5.68

£4.39

£3.95

£3.68

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: £5.68
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

£5.68

£4.39

£4.07

£3.68

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: £5.01
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

£5.01

£3.85

£3.51

£3.33

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: £5.72
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

£5.72

£4.43

£3.98

£3.71

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: £5.10
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

£5.10

£3.91

£3.62

£3.37

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

LTC7803JUD#WPBF
Analog Devices
1: £5.72
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

£5.72

£4.43

£4.09

£3.77

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: £4.96
121Expected 24/08/2026

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 24/08/2026

£4.96

£3.81

£3.51

£3.07

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: £2.60
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

£2.60

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: £2.62
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

£2.62

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: £3.21
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

£3.21

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

LTC7803HUD#TRPBF
Analog Devices
2,500: £3.25
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

£3.25

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: £2.87
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

£2.87

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: £2.86
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

£2.86

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: £2.92
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

£2.92

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: £3.27
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

£3.27

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: £2.92
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

£2.92

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: £3.23
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

£3.23

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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