LP2950CT datasheet(11/13 Pages) SIPEX

Part #	LP2950CT

Description	100 mA Low Dropout Voltage Regulators

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Manufacturer	SIPEX [Sipex Corporation]

Direct Link	http://www.sipex.com

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11 / 13 page

Rev. 8/10/01

LP2950/51 100mA Low Dropout Voltage Regulators

11

EXTERNAL CIRCUIT

PROTECTED FROM

OVER TEMPERATURE

(V+ GOES OFF WHEN

TEMP > 125)

OR

RELAY

8.2K

TEMP

SENSOR

GND

V OUT

FB

SD

+V

IN

+V IN

10K

5 DEGREE SHUTDOWN FLAG

ERROR

_______

3

5

8

4

7

1

AUX SHUTDOW

INPUT

OFF

ON

Ω

AS35

+

-

LP2951

Ω.

.

330K

IN

V

OUT

FB

6

8

1

4.7

µF

+

7

Ω

27K

LP2951

V

TAP

GND

SENSE

4

2

UNREGULATED INPUT

2N5432

5V

OUTPUT

LOAD

50mA

TO

300 mA

(2)

360K

0.1

µF

V

OUT

MIN VOLTAGE = 4V

+V

IN

8

1

FB

7

1N4001

20mA

1N457

4.7mA

+5V

OUTPUT

2

GND

4

LP2951

Ω

LP2950/LP2951

TYPICAL APPLICATIONS (continued)

Figure 7. System Over Temperature Protection

Figure 8. Open Circuit Detector for 4mA to 20mA Current

Loop

Figure 9. 300mA Regulator with 0.75V

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LP2950CT Datasheet(PDF) 11 Page - Sipex Corporation

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