Converters | NCV890100

Automotive Switching Regulator, Buck, 1.2 A, 2 MHz

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Overview

The NCV890100 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 36V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890100 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures.
The NCV890100 also provides several protection features expected in Automotive power supply systems such as current limit, short-circuit protection and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all-ceramic output filter capacitor - forming a space-efficient switching regulator solution.

  • Audio
  • Infotainment
  • Safety - Vision Systems
  • Dashboards

  • Automotive

  • Internal N-Channel Power Switch
  • Low VIN Operation Down to 4.5 V
  • High VIN Operation Up to 36 V
  • Withstands Load Dumps to 40 V
  • 2-MHz Free-Running Switching Frequency
  • Logic level Enable Input Can be Directly Tied to Battery
  • 1.4 A (min) Cycle-by-Cycle Peak Current Limit
  • Short-Circuit Protection enhanced by Frequency Foldback
  • ±1.75% Output Voltage Tolerance
  • Output Voltage Adjustable Down to 0.8 V
  • 1.4 ms Internal Soft-Start
  • Thermal Shutdown (TSD)
  • Low Shutdown Current
  • NCV Prefix for Automotive and Other Applications Requiring Site and Change Controls
  • Wettable Flanks DFN
  • This is a Pb-Free Device

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NCV890100MWTXG

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Active

CAD Model

Pb

A

H

P

DFN-8

506BY

1

260

REEL

3000

Step-Down

Current Mode

4.5

40

Adjustable

1.2

-

2250

$0.9857

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NCV890100PDR2G

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-8 EP

751AC

2

260

REEL

2500

Step-Down

Current Mode

4.5

40

Adjustable

1.2

-

2250

Price N/A

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Reliability Data

Die Related Summary Data

Device: NCV890100MWTXG

Equivalent to wafer fab process: BP STD LINEAR

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

BP STD LINEAR

10

12120914040

786732990

1.27

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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