SPX2950 데이터 시트보기 (PDF) - Signal Processing Technologies

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SPX2950

150mA Low Dropout Voltage Regulators

Signal Processing Technologies 

TYPICAL APPLICATIONS

4.75V

OUTPUT

VOLTAGE

_______

ERROR*

+5.0V

+ INPUT

VOLTAGE 1.3V

+

+

* See Application Info. _______

Figure 1. ERROR Output Timing

SPX2950/SPX2951

+VIN

100K

ERROR

OUTPUT

8

5 ______ +VIN

ERROR

1

VOUT

SPX2951

SHUTDOWN

INPUT

3

SD

GND

4

FB

7

1.23V

1.2 to 30V

+

R1

3.3uF

.01uF

VREF

R2

Figure 2. Adjustable Regulator

+VIN

470KΩ ..

8

5 ______ +VIN

ERROR

470KΩ ..

1

V OUT

SPX2951

3

SD

R1

GND

FB

4

7

V OUT

+

1uF

R2

Latch Off When Error Flag Occurs

+VIN

ERROR

OUTPUT

SHUTDOWN

INPUT

8

5 ______ +VIN

ERROR

1

V OUT

SPX2951

3

SD

GND

FB

4

7

*VOUT= VIN

*MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 4mV to 400mV.

DEPENDING ON LOAD CURRENT. CURRENT LIMIT IS TYPICALLY 160mA

Wide Input Voltage Range Current Limiter

Rev. 10/30/00

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