Buck Regulator, 1.5 A, 340 kHz, with Synchronization Capability

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Overview

The NCV8843 is a 1.5 A buck regulator IC operating at a fixed frequency of 340 kHz. The device employs the V2™ control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation. The NCV8842 accommodates input voltages from 4.0 V to 40 V and contains synchronization circuitry. The on-chip NPN transistor is capable of providing a minimum of 1.5 A of output current and is biased by an external boost capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback short-circuit protection.

  • Automotive
  • Industrial
  • Dc-dc power supplies
  • V2™ Control Architecture
  • 2.0% Error Amp Reference Voltage Tolerance
  • Cycle-by-Cycle Current Limiting
  • Switch Frequency Decrease of 4:1 in Short Circuit
  • Bootstrapped Operation (BOOST)
  • Synchronization to External Clock (SYNC)
  • 1.0 A Shutdown Quiescent Current
  • Thermal Shutdown
  • Soft-Start
  • Pb-Free Packages are Available

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CAD Models

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Reference Price

NCV8843DG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Step-Down

V2

4

40

-

1.5

-

340

Price N/A

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NCV8843DR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Step-Down

V2

4

40

-

1.5

-

340

Price N/A

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NCV8843MNR2G

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Active

CAD Model

Pb

A

H

P

DFN-18

1

260

REEL

2500

N

Step-Down

V2

4

40

1.46

1.5

-

340

$2.5241

More Details

NCV8843PWG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16W

1

260

TUBE

47

N

Step-Down

V2

4

40

-

1.5

-

340

Price N/A

More Details

NCV8843PWR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16W

1

260

REEL

1000

N

Step-Down

V2

4

40

-

1.5

-

340

Price N/A

More Details

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