spx1585at-tr Exar Corporation, spx1585at-tr Datasheet - Page 5

• Manufacturer Part Number: spx1585at-tr
• Description: 5a Low Dropout Voltage Regulator
• Manufacturer: Exar Corporation

TYPICAL APPLICATIONS
V
Note A: V
IN
*C
should be ~ R
(Note A)
1
V
IN(MIN)
improves ripple rejection. Xc
IN
Fig. 4 5A Current output Regulator
= (Intended V
10µF
C
Fig. 6
1
1
+
at ripple frequency.
IN
Improving Ripple Rejection
OUT
SPX1585
IN
) + (V
SPX1585
DROPOUT (MAX)
ADJ
ADJ
OUT
365Ω
)
OUT
1%
R
2
5V
LOAD
R
121Ω
1%
+
1
10µF*
C
R
1
1
150µF
V
OUT
V
IN
V
OUT
= V
(Note A)
Input
TTL
V
REF
Note A: V
IN
C
Fig. 5 Typical Adjustable Regulator
Fig.7 5V Regulator with Shutdown
1
(1 + R
IN
+
R
2
1
) + I
10µF
IN(MIN)
1k
SPX1585
ADJ
= (Intended V
IN
R
2
ADJ
1k
SPX1585
ADJ
2N3904
OUT
OUT
OUT
) + (V
DROPOUT (MAX)
D ate: 05/14/04
R
R
1
2
SPX1585
1%
121Ω
1%
365Ω
)
+
C
100µF
5V
2
V
OUT