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Switching Controllers

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Part #

Switching Controllers PWM CONTROLLER

UC2843BD1
STMicroelectronics
1: $1.64
2,000In Stock

Mfr. Part No.
UC2843BD1

Mouser Part No
511-UC2843BD1

STMicroelectronics

Switching Controllers PWM CONTROLLER

Learn More

Datasheet

2,000In Stock

$1.64

$1.21

$1.10

$0.971

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

100 %

4.95 V to 5.05 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Tube

Switching Controllers 0.5mA Current Mode

UC3843BD1
STMicroelectronics
1: $1.70
1,813In Stock

Mfr. Part No.
UC3843BD1

Mouser Part No
511-UC3843BD

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

1,813In Stock

$1.70

$1.25

$1.13

$1.01

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

100 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Tube

Switching Controllers 0.5mA Current Mode

UC3844BN
STMicroelectronics
1: $1.03
5,271In Stock

Mfr. Part No.
UC3844BN

Mouser Part No
511-UC3844BN

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

5,271In Stock

$1.03

$0.739

$0.64

$0.598

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

Through Hole

PDIP-8

Tube

Switching Controllers 0.5mA Current Mode

UC3845BN
STMicroelectronics
1: $1.05
3,062In Stock

Mfr. Part No.
UC3845BN

Mouser Part No
511-UC3845BN

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

3,062In Stock

$1.05

$0.758

$0.64

$0.603

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

Through Hole

PDIP-8

Tube

Switching Controllers Hi Vltg resonant Controller

L6599D
STMicroelectronics
1: $3.01
712In Stock
NRND

Mfr. Part No.
L6599D

Mouser Part No
511-L6599D

NRND

STMicroelectronics

Switching Controllers Hi Vltg resonant Controller

Datasheet

712In Stock

$3.01

$2.26

$1.95

$1.86

View

Min.: 1
Mult.: 1

Half Bridge

1 Output

500 kHz

52 %

13.3 V

800 mA

- 40 C

+ 150 C

SMD/SMT

SOIC-16

Tube

Switching Controllers Prog Current Mode

L5991AD
STMicroelectronics
1: $2.44
161In Stock
1,000Expected 06/07/2026

Mfr. Part No.
L5991AD

Mouser Part No
511-L5991AD

STMicroelectronics

Switching Controllers Prog Current Mode

Datasheet

161In Stock

1,000Expected 06/07/2026

$2.44

$1.82

$1.57

$1.49

View

Min.: 1
Mult.: 1

Boost, Flyback

1 Output

1 MHz

100 %

5.075 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-16

Tube

Switching Controllers Prog Current Mode

L5991AD13TR
STMicroelectronics
1: $2.44
432In Stock

Mfr. Part No.
L5991AD13TR

Mouser Part No
511-L5991AD13TR

STMicroelectronics

Switching Controllers Prog Current Mode

Datasheet

432In Stock

Cut Tape

$2.44

$1.82

$1.66

$1.49

Reel

$1.26

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback

1 Output

1 MHz

93 %

5.075 V

1.5 A

- 40 C

+ 150 C

SMD/SMT

SOIC-16

Reel, Cut Tape, MouseReel

Switching Controllers Prog Current Mode

L5991D013TR
STMicroelectronics
1: $2.37
970In Stock

Mfr. Part No.
L5991D013TR

Mouser Part No
511-L5991D013TR

STMicroelectronics

Switching Controllers Prog Current Mode

Datasheet

970In Stock

Cut Tape

$2.37

$1.76

$1.61

$1.44

Reel

$1.24

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback

1 Output

1 MHz

93 %

5.075 V

1.5 A

- 40 C

+ 150 C

SMD/SMT

SOIC-16

Reel, Cut Tape, MouseReel

Switching Controllers Current-Mode Pri Cnt

L6565D
STMicroelectronics
1: $1.52
1,759In Stock
2,000On Order

Mfr. Part No.
L6565D

Mouser Part No
511-L6565D

STMicroelectronics

Switching Controllers Current-Mode Pri Cnt

Datasheet

1,759In Stock

2,000On Order

$1.52

$1.11

$1.01

$0.894

View

Min.: 1
Mult.: 1

Flyback

1 Output

70 kHz

5.5 V

4.5 mA

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Tube

Switching Controllers MultiMode Controller for SMPS

L6566BTR
STMicroelectronics
1: $1.81
1,479In Stock

Mfr. Part No.
L6566BTR

Mouser Part No
511-L6566BTR

STMicroelectronics

Switching Controllers MultiMode Controller for SMPS

Datasheet

1,479In Stock

Cut Tape

$1.81

$1.33

$1.20

$1.07

Reel

$0.902

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Flyback

1 Output

107 kHz

75 %

5 V

800 mA

- 40 C

+ 150 C

SMD/SMT

SO-16 N

Reel, Cut Tape, MouseReel

Switching Controllers Voltage Mode w/Sync

SG2525AP013TR
STMicroelectronics
1: $2.57
107In Stock
30,000On Order

Mfr. Part No.
SG2525AP013TR

Mouser Part No
511-SG2525AP013TR

STMicroelectronics

Switching Controllers Voltage Mode w/Sync

Datasheet

107In Stock

30,000On Order

Cut Tape

$2.57

$1.91

$1.74

$1.56

Reel

$1.34

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Push-Pull

2 Output

100 Hz to 400 kHz

49 %

5.1 V

500 mA

- 25 C

+ 85 C

SMD/SMT

SOIC-16

Reel, Cut Tape, MouseReel

Switching Controllers Voltage Mode w/Sync

SG3525AP013TR
STMicroelectronics
1: $2.00
27In Stock
15,000Expected 01/02/2027

Mfr. Part No.
SG3525AP013TR

Mouser Part No
511-SG3525AP013TR

STMicroelectronics

Switching Controllers Voltage Mode w/Sync

Datasheet

27In Stock

15,000Expected 01/02/2027

Cut Tape

$2.00

$1.48

$1.35

$1.20

Reel

$1.01

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Push-Pull

2 Output

100 Hz to 500 kHz

49 %

5.1 V

500 mA

0 C

+ 70 C

SMD/SMT

SOIC-16

Reel, Cut Tape, MouseReel

Switching Controllers 0.5mA Current Mode

UC2842BD1
STMicroelectronics
1: $1.30
518In Stock

Mfr. Part No.
UC2842BD1

Mouser Part No
511-UC2842BD

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

518In Stock

$1.30

$0.941

$0.853

$0.755

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

100 %

4.95 V to 5.05 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Tube

Switching Controllers 0.5mA Current Mode

UC2844BD1013TR
STMicroelectronics
1: $1.01
1,976In Stock

Mfr. Part No.
UC2844BD1013TR

Mouser Part No
511-UC2844BD1013TR

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

1,976In Stock

Cut Tape

$1.01

$0.727

$0.656

$0.578

Reel

$0.49

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.95 V to 5.05 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers 0.5mA Current Mode

UC2844BN
STMicroelectronics
1: $1.20
346In Stock

Mfr. Part No.
UC2844BN

Mouser Part No
511-UC2844BN

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

346In Stock

$1.20

$0.873

$0.767

$0.704

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.95 V to 5.05 V

1 A

- 40 C

+ 150 C

Through Hole

PDIP-8

Tube

Switching Controllers 0.5mA Current Mode

UC2845BD1013TR
STMicroelectronics
1: $1.01
1,543In Stock
5,000Expected 18/01/2027

Mfr. Part No.
UC2845BD1013TR

Mouser Part No
511-UC2845BD1013TR

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

1,543In Stock

5,000Expected 18/01/2027

Cut Tape

$1.01

$0.727

$0.656

$0.578

Reel

$0.479

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.95 V to 5.05 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers 0.5mA Current Mode

UC3842BD1
STMicroelectronics
1: $1.16
1,242In Stock
2,000Expected 17/08/2026

Mfr. Part No.
UC3842BD1

Mouser Part No
511-UC3842BD

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

1,242In Stock

2,000Expected 17/08/2026

$1.16

$0.839

$0.759

$0.67

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

100 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Tube

Switching Controllers 0.5mA Current Mode

UC3842BD1013TR
STMicroelectronics
1: $0.99
3,000In Stock

Mfr. Part No.
UC3842BD1013TR

Mouser Part No
511-UC3842BD1013TR

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

3,000In Stock

Cut Tape

$0.99

$0.711

$0.642

$0.565

Reel

$0.478

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback, Forward

1 Output

500 kHz

100 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers 0.5mA Current Mode

UC3843BD1013TR
STMicroelectronics
1: $0.91
3,319In Stock

Mfr. Part No.
UC3843BD1013TR

Mouser Part No
511-UC3843BD1013TR

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

3,319In Stock

Cut Tape

$0.91

$0.653

$0.588

$0.517

Reel

$0.429

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback, Forward

1 Output

500 kHz

100 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers 0.5mA Current Mode

UC3843BN
STMicroelectronics
1: $0.97
1,943In Stock

Mfr. Part No.
UC3843BN

Mouser Part No
511-UC3843BN

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

1,943In Stock

$0.97

$0.695

$0.586

$0.552

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

100 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

Through Hole

PDIP-8

Tube

Switching Controllers 0.5mA Current Mode

UC3844BD1013TR
STMicroelectronics
1: $0.93
436In Stock
7,500Expected 31/08/2026

Mfr. Part No.
UC3844BD1013TR

Mouser Part No
511-UC3844BD1013TR

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

436In Stock

7,500Expected 31/08/2026

Cut Tape

$0.93

$0.666

$0.614

$0.527

Reel

$0.422

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers PWM CONTROLLER

UC3845BD1
STMicroelectronics
1: $1.55
798In Stock

Mfr. Part No.
UC3845BD1

Mouser Part No
511-UC3845BD1

STMicroelectronics

Switching Controllers PWM CONTROLLER

Learn More

Datasheet

798In Stock

$1.55

$1.14

$1.04

$0.923

View

Min.: 1
Mult.: 1

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Tube

Switching Controllers 0.5mA Current Mode

UC3845BD1013TR
STMicroelectronics
1: $0.96
746In Stock
2,500On Order

Mfr. Part No.
UC3845BD1013TR

Mouser Part No
511-UC3845BD1013TR

STMicroelectronics

Switching Controllers 0.5mA Current Mode

Learn More

Datasheet

746In Stock

2,500On Order

Cut Tape

$0.96

$0.686

$0.607

$0.543

Reel

$0.438

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

Boost, Flyback, Forward

1 Output

500 kHz

50 %

4.9 V to 5.1 V

1 A

- 40 C

+ 150 C

SMD/SMT

SOIC-8

Reel, Cut Tape, MouseReel

Switching Controllers HV converter embedding advanced quasi-resonant controller and 650V GAN HEMT

VIPERGAN50TR
STMicroelectronics
1: $3.18
3,841In Stock

Mfr. Part No.
VIPERGAN50TR

Mouser Part No
511-VIPERGAN50TR

STMicroelectronics

Switching Controllers HV converter embedding advanced quasi-resonant controller and 650V GAN HEMT

Learn More

Datasheet

3,841In Stock

Cut Tape

$3.18

$2.38

$2.18

$1.97

View

Reel

$1.61

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

1 Output

- 40 C

+ 150 C

SMD/SMT

QFN-6

Reel, Cut Tape, MouseReel

Switching Controllers Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT

VIPERGAN100TR
STMicroelectronics
1: $4.31
129In Stock
NRND

Mfr. Part No.
VIPERGAN100TR

Mouser Part No
511-VIPERGAN100TR

NRND

STMicroelectronics

Switching Controllers Advanced quasi-resonant offline high voltage converter with E-mode GaN HEMT

Learn More

Datasheet

129In Stock

Cut Tape

$4.31

$3.27

$3.01

$2.72

View

Reel

$2.28

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

Flyback

1 Output

330 kHz

6 V

4 mA

- 40 C

+ 150 C

SMD/SMT

VFQFN-16

Reel, Cut Tape, MouseReel

Switching Controllers

Customer Service Office

Company

Resources

Support

DFN-6
HTSSOP EP
PDIP-16
PDIP-8
QFN-23
QFN-32
QFN32L
QFN-6
QFPN-32
SO-16
SO-16N
SO-16 N
SOIC-14
SOIC-16
SOIC-8
SOIC-Narrow-16
SO N
SO-Narrow-16
SOP-14
VFQFN-16