Automotive 0.6 A 2 MHz 100% Duty Cycle Step-Down Synchronous Regulator

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Overview

The NCV890430 is a fixed-frequency Synchronous Buck regulatorintended for Automotive, battery-connected applications that operatewith up to a 45 V input supply. It is suitable for automotive systemsrequiring low noise and low shutdown currents that also need tooperate at low input voltage close to the output voltage. A reset pin(with adjustable delay) simplifies interfacing with a microcontroller.This part also features an enable input that can either be connected to alow voltage (such as a micro-controller output) or high voltage (suchas the battery input), and a synchronization input.The NCV890430 also provides several protection features expectedin automotive power supply systems such as current limit, short circuitprotection, and thermal shutdown. In addition, the high switchingfrequency produces low output voltage ripple even when using smallinductor values and all-ceramic input output filter capacitors −forming a space-efficient switching regulator solution.

  • Automotive Infotainment and Instrumentation
  • Automotive Body Applications
  • Linear Regulator Replacement
  • Rear View Camera
  • Automotive
  • Internal 550 mΩ P Channel and 300 mΩ N-Channel Power Switches
  • Capable of 100% Duty Cycle Operation
  • VIN operating range of 3.5 V to 37 V
  • Withstands Load Dump to 45 V
  • 2 MHz Free-Running Switching Frequency
  • Shutdown Current Less than 10 µA
  • High Voltage Enable Pin
  • Synchonization Input Pin
  • Maximum DC Output Current of at least 0.6A
  • Fixed Output Voltage (5.0 V, 3.3 V and 2.5 V Versions)
  • ± 2% Output Voltage Accuracy
  • DFN Package with Wettable Flanks (Pin Edge Plating Per JEDEC MO220)
  • NCV Prefix for Automotive Requiring Site and Control Changes
  • Pb-Free

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NCV890430MW25TXG

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Obsolete

CAD Model

Pb

A

H

P

DFN-8

1

260

REEL

3000

N

Step-Down

Current Mode

3.5

45

2.5

0.6

83

2000

Price N/A

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NCV890430MW33TXG

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Last Shipments

CAD Model

Pb

A

H

P

DFN-8

1

260

REEL

3000

N

Step-Down

Current Mode

3.5

45

3.3

0.6

77

2000

Price N/A

More Details

NCV890430MW50TXG

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Active

CAD Model

Pb

A

H

P

DFN-8

1

260

REEL

3000

N

Step-Down

Current Mode

3.5

45

5

0.6

74

2000

$1.15

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