SPX1587AU-5.0 データシートの表示（PDF） - Signal Processing Technologies

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SPX1587AU-5.0

3A Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response

Signal Processing Technologies 

TYPICAL APPLICATIONS

SPX1587

VIN

IN

SPX1587

OUT

VIN

IN SPX1587

OUT

VOUT

C1

C1

ADJ

R1

C2

ADJ

R1

LOAD

Fig. 4 3A Current output Regulator

VOUT = VREF (1 + R2 ) + IADJ R2

R2

R1

Fig. 5 Typical Adjustable Regulator

(Note A)

VIN

+

10µF

IN

OUT

SPX1587

ADJ

5V

R1

121Ω

1%

VOUT

*C1 improves ripple rejection. XC

should be ~ R 1 at ripple frequency.

R2

365Ω

1%

Note A: VIN(MIN)= (Intended VOUT) + (VDROPOUT (MAX))

150µF

+ 1C01µF*

Fig. 6 Improving Ripple Rejection

VIN

(Note A)

+

IN

OUT

SPX1587

ADJ

10µF

TTL

Input

1k

2N3904

1k

5V

121Ω

1%

+

100µF

365Ω

1%

Note A: VIN(MIN)= (Intended VOUT) + (VDROPOUT (MAX))

Fig.7 5V Regulator with Shutdown

Rev. 10/30/00

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