Linear Regulators (LDO) | NCV8518A

250 mA LDO Linear Voltage Regulator with Watchdog, Wake Up, Reset , Delay and Enable

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Overview

The NCV8518A device is a precision micropower voltage regulator. It has a fixed output voltage of 5.0 V and regulates within ±2%.

Microprocessor control logic includes an active RESET (with DELAY), wakeup, watchdog and enable.
The NCV8518A Wakeup function brings the microprocessor out of Sleep mode. The microprocessor in turn signals its Wakeup status back to the NCV8518A by issuing a Watchdog signal.
The active RESET circuit operates correctly at an output voltage as low as 1.0 V. The RESET function is activated during the power up sequence, during normal operation if the output voltage drops below the regulation limits or if the regulator does not receive a Watchdog signal within a Wakeup period.
The Watchdog logic function monitors an input signal (WDI) from the microprocessor. The device responds to the falling edge of the Watchdog signal which it expects at least once during each Wakeup period.
Enable is a standard TTL and CMOS logic compatible input that can be used to turn the regulator on or off. In the disabled/shutdown state, the pass transistor is off and total quiescent current is less than 1 µA.

Also encompassed in this device are safety features such as thermal shutdown and short circuit protection, an important consideration in automotive environments.

NCV8518A is pin for pin compatible with NCV8518 and can replace this device in any new design.

  • Body and Chassis
  • Instrument and Clusters
  • Engine Control Unit
  • Safety
  • Tyre Pressure Monitor

  • Automotive

  • 5.0 V 2% Output Voltage / 250 mA Output Current
  • Low Quiescent Current (100 µA typ) at full load
  • Micropower compatible control functions: Enable, Watchdog, Reset, Adjustable Reset Delay, Wake Up
  • Protection Features:
    45 V operation
    Thermal shutdown
    Short ciruit
  • Enable
  • AEC Q100 Qualified
  • Pin for pin compatible with NCV8518

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Reference Price

NCV8518APDG

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Consult Sales Office

CAD Model

Pb

A

H

P

SOIC-8 EP

751AC

2

260

TUBE

98

N

Single

Positive

5

0.25

-

45

0.425

0.1

70

-

Yes

Yes

Automotive

Price N/A

More Details

NCV8518APDR2G

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Consult Sales Office

CAD Model

Pb

A

H

P

SOIC-8 EP

751AC

2

260

REEL

2500

N

Single

Positive

5

0.25

-

45

0.425

0.1

70

-

Yes

Yes

Automotive

Price N/A

More Details

NCV8518APWG

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Consult Sales Office

CAD Model

Pb

A

H

P

SOIC-16 WB EP

751AG

1

260

TUBE

47

N

Single

Positive

5

0.25

-

45

0.425

0.1

70

-

Yes

Yes

Automotive

Price N/A

More Details

NCV8518APWR2G

Loading...

Consult Sales Office

CAD Model

Pb

A

H

P

SOIC-16 WB EP

751AG

1

260

REEL

1000

N

Single

Positive

5

0.25

-

45

0.425

0.1

70

-

Yes

Yes

Automotive

Price N/A

More Details

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