Voltage Regulators - Switching Regulators

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SC189 Step Down Regulators

Semtech SC189 Step Down Regulators deliver up to 1.5A output current in either an ultra-small 2mm x 2mm, low profile package, or a low-cost SOT23-5 package. With only three external filter components, the SC189 is a complete step-down regulator solution. The SC189 Regulators feature an input voltage range of 2.9V to 5.5V with either factory-programmed outputs from 1.0V to 3.3V or adjustable output via an external resistor divider.

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Part #

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189CULTRT
Semtech
1: 267,66 Ft
32 605In Stock

Mfr. Part No.
SC189CULTRT

Mouser Part No
947-SC189CULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

32 605In Stock

Cut Tape

267,66 Ft

201,47 Ft

172,17 Ft

159,87 Ft

Reel

128,77 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

MLPD-UT-6

Buck

1.2 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189LULTRT
Semtech
1: 279,96 Ft
2 905In Stock

Mfr. Part No.
SC189LULTRT

Mouser Part No
947-SC189LULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

2 905In Stock

Cut Tape

279,96 Ft

199,30 Ft

179,76 Ft

157,70 Ft

Reel

129,49 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

MLPD-UT-6

Buck

1.8 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189BULTRT
Semtech
1: 304,91 Ft
2 733In Stock

Mfr. Part No.
SC189BULTRT

Mouser Part No
947-SC189BULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

2 733In Stock

Cut Tape

304,91 Ft

218,11 Ft

196,76 Ft

172,89 Ft

Reel

142,51 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

MLPD-UT-6

Buck

1.1 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

SC189ASKTRT
Semtech
1: 279,96 Ft
7 340In Stock

Mfr. Part No.
SC189ASKTRT

Mouser Part No
947-SC189ASKTRT

Semtech

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

Learn More

Datasheet

7 340In Stock

Cut Tape

279,96 Ft

200,02 Ft

180,49 Ft

158,79 Ft

View

Reel

129,85 Ft

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

SOT-23-5

Buck

1 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 1.5A SYNCHRONOUS STEP DOWN REG

SC189HSKTRT
Semtech
1: 307,81 Ft
3 792In Stock

Mfr. Part No.
SC189HSKTRT

Mouser Part No
947-SC189HSKTRT

Semtech

Switching Voltage Regulators 1.5A SYNCHRONOUS STEP DOWN REG

Learn More

Datasheet

3 792In Stock

Cut Tape

307,81 Ft

220,28 Ft

198,94 Ft

174,70 Ft

Reel

143,96 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

SOT-23-5

Buck

1.5 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

SC189LSKTRT
Semtech
1: 301,66 Ft
4 209In Stock

Mfr. Part No.
SC189LSKTRT

Mouser Part No
947-SC189LSKTRT

Semtech

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

Learn More

Datasheet

4 209In Stock

Cut Tape

301,66 Ft

217,02 Ft

196,04 Ft

172,53 Ft

Reel

145,04 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

SOT-23-5

Buck

1.8 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

SC189ZSKTRT
Semtech
1: 307,81 Ft
847In Stock
9 000Expected 8/11/2026

Mfr. Part No.
SC189ZSKTRT

Mouser Part No
947-SC189ZSKTRT

Semtech

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

Learn More

Datasheet

847In Stock

9 000Expected 8/11/2026

Cut Tape

307,81 Ft

224,98 Ft

198,21 Ft

179,04 Ft

Reel

144,68 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

SOT-23-5

Buck

3.3 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189AULTRT
Semtech
1: 301,66 Ft
257In Stock

Mfr. Part No.
SC189AULTRT

Mouser Part No
947-SC189AULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

257In Stock

Cut Tape

301,66 Ft

217,38 Ft

196,40 Ft

172,53 Ft

Reel

141,79 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

MLPD-UT-6

Buck

1 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

SC189YSKTRT
Semtech
1: 298,76 Ft
1 159In Stock

Mfr. Part No.
SC189YSKTRT

Mouser Part No
947-SC189YSKTRT

Semtech

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

Learn More

Datasheet

1 159In Stock

Cut Tape

298,76 Ft

214,85 Ft

193,87 Ft

170,72 Ft

Reel

138,17 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

SOT-23-5

Buck

2.5 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

SC189CSKTRT
Semtech
1: 289,36 Ft
11 903Expected 8/19/2026

Mfr. Part No.
SC189CSKTRT

Mouser Part No
947-SC189CSKTRT

Semtech

Switching Voltage Regulators 2.5MHz-1.5A SYNC STEP DOWN REG

Learn More

Datasheet

11 903Expected 8/19/2026

Cut Tape

289,36 Ft

213,04 Ft

187,72 Ft

168,91 Ft

Reel

138,89 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

SOT-23-5

Buck

1.2 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators 2.5MHZ-1.5A SYNC STEP DOWN REG

SC189BSKTRT
Semtech
1: 307,81 Ft
2 995Expected 8/19/2026

Mfr. Part No.
SC189BSKTRT

Mouser Part No
947-SC189BSKTRT

Semtech

Switching Voltage Regulators 2.5MHZ-1.5A SYNC STEP DOWN REG

Learn More

Datasheet

2 995Expected 8/19/2026

Cut Tape

307,81 Ft

220,28 Ft

198,94 Ft

175,06 Ft

Reel

140,34 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

SOT-23-5

Buck

1.1 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189ZULTRT
Semtech
1: 311,06 Ft
1 990Expected 8/14/2026

Mfr. Part No.
SC189ZULTRT

Mouser Part No
947-SC189ZULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

1 990Expected 8/14/2026

Cut Tape

311,06 Ft

222,45 Ft

201,11 Ft

176,51 Ft

Reel

145,40 Ft

View

MouseReel Available

Min.: 1
Mult.: 1

: 3 000

SMD/SMT

MLPD-UT-6

Buck

3.3 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 85 C

SC189

Reel, Cut Tape, MouseReel

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189HULTRT
Semtech
3 000: 142,51 Ft
Non-Stocked

Mfr. Part No.
SC189HULTRT

Mouser Part No
947-SC189HULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

Non-Stocked

Reel

142,51 Ft

138,89 Ft

Min.: 3 000
Mult.: 3 000

: 3 000

SMD/SMT

MLPD-UT-6

Buck

1.5 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189NULTRT
Semtech
3 000: 150,47 Ft
Non-Stocked

Mfr. Part No.
SC189NULTRT

Mouser Part No
947-SC189NULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

Non-Stocked

Reel

150,47 Ft

142,51 Ft

Min.: 3 000
Mult.: 3 000

: 3 000

SMD/SMT

MLPD-UT-6

Buck

2 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

SC189TULTRT
Semtech
3 000: 156,62 Ft
Non-Stocked

Mfr. Part No.
SC189TULTRT

Mouser Part No
947-SC189TULTRT

Semtech

Switching Voltage Regulators SYNC STEP DOWN REGULATOR

Learn More

Datasheet

Non-Stocked

Reel

156,62 Ft

147,57 Ft

Min.: 3 000
Mult.: 3 000

: 3 000

SMD/SMT

MLPD-UT-6

Buck

2.5 V

1.5 A

1 Output

2.5 MHz

- 40 C

+ 125 C

SC189

Reel

SC189 Step Down Regulators

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