5 V / 100 mA Low Dropout (LDO) Voltage Regulator with Reset, Delay Reset, Watchdog & Wake Up

Obsolete

Overview

The CS8151 is a precision 5.0 V, 100 mA micro-power voltage regulator with very low quiescent current (400 mA typical at 200 mA load). The 5.0 V output is accurate within +/-2% and supplies 100 mA of load current with a typical dropout voltage of 400 mV. Microprocessor control logic includes Watchdog, Wake Up and RESETbar. This unique combination of low quiescent current and full microprocessor control makes the CS8151 ideal for use in battery operated, microprocessor controlled equipment.

The CS8151 Wake Up function brings the microprocessor out of Sleep mode. The microprocessor in turn, signals its Wake Up status back to the CS8151 by issuing a Watchdog signal.

The Watchdog logic function monitors an input signal (WDI) from the microprocessor. The CS8151 responds to the falling edge of the Watchdog signal which it expects at least once during each wake-up period. When the correct Watchdog signal is received, a falling edge is issued on the wake-up signal line.

RESETbar is independent of VIN and operates correctly to an output voltage as low as 1.0 V. A RESETbar signal is issued in any of three situations. During power up the RESETbar is held low until the output voltage is in regulation. During operation if the output voltage shifts below the regulation limits, the RESETbar toggles low and remains low until proper output voltage regulation is restored. And finally, a RESETbar signal is issued if the regulator does not receive a Watchdog signal within the Wake Up period.

The RESETbar pulse width, Wake Up signal frequency, and Wake Up delay time are all set by one external capacitor CDelay.

The regulator is protected against short circuit, over voltage, and thermal runaway conditions. The device can withstand 74 volt peak transients, making it suitable for use in automotive environments.

  • Body and Chassis
  • Powertrain
  • Safety

  • Automotive

  • 5V +/-2% / 100 mA Output Voltage
  • Micropower Compatible Control Functions:
    - Wake Up
    - Watchdog
    - RESETbar
  • Low Dropout Voltage: 400mV @ 100mA
  • Low Sleep Mode Quiescent Current (400mA typ)
  • Protection Features:
    - Thermal Shutdown
    - Short Circuit
    - 74V Load Dump
    - Reverse Transient (-50V)
  • Internally Fused Leads in DIP-16 and SO-16L Packages
  • Pb-Free Packages are Available

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CAD Models

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MSL Type

MSL Temp (°C)

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ON Target

Output

Polarity

VO (V)

IO Typ (A)

VI Min (V)

VI Max (V)

VDO Typ (V)

Iq Typ (mA)

PSRR (dB)

Noise (µVrms)

Enable

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Application

Reference Price

CS8151CGN8

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Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151CGN8G

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Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151D2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-14

3

260

TUBE

55

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151D2R2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-14

3

260

REEL

2500

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDPS7

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Obsolete

CAD Model

Pb

A

H

P

D2PAK-7

2

235

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDPS7G

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Obsolete

CAD Model

Pb

A

H

P

D2PAK-7

3

260

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDPSR7

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Obsolete

CAD Model

Pb

A

H

P

D2PAK-7

2

235

REEL

750

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDPSR7G

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Obsolete

CAD Model

Pb

A

H

P

D2PAK-7

3

260

REEL

750

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDWF16

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16W

1

235

TUBE

47

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDWF16G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16W

3

260

TUBE

47

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDWFR16

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16W

1

235

REEL

1000

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YDWFR16G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16W

3

260

REEL

1000

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YNF16

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Obsolete

CAD Model

Pb

A

H

P

PDIP-16

NA

0

TUBE

25

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YNF16G

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Obsolete

CAD Model

Pb

A

H

P

PDIP-16

NA

0

TUBE

25

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YT7

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Obsolete

CAD Model

Pb

A

H

P

TO-220 7-LEAD STANDARD (T7)

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YT7G

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Obsolete

CAD Model

Pb

A

H

P

TO-220 7-LEAD STANDARD (T7)

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YTHA7

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Obsolete

CAD Model

Pb

A

H

P

TO-220-7

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YTHA7G

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Obsolete

CAD Model

Pb

A

H

P

TO-220-7

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YTVA7

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Obsolete

CAD Model

Pb

A

H

P

TO-220-7

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

CS8151YTVA7G

Loading...

Obsolete

CAD Model

Pb

A

H

P

TO-220-7

NA

0

TUBE

50

N

Single

Positive

5

0.1

-

60

0.4

0.4

75

-

-

-

-

Price N/A

More Details

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