SPX1202 View Datasheet(PDF) - Signal Processing Technologies
Part Name
Description
Manufacturer
SPX1202 Datasheet PDF : 12 Pages
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(Note A)
V IN
+
4.7F
SPX1202
5V
IN
OUT
V
OUT
ADJ
R1
1kΩ,
1%
*C 1 improves ripple rejection.
ZCshould be ~ R1 at ripple frequency
R2
330Ω
1%
10F
+ C1
10F*
Note A: VIN(MIN) = (Intended VOUT ) + (V DROPOUT (MAX))
Figure 10. Improving Ripple Rejection
V IN
(Note A)
+
SPX1202
IN
OUT
ADJ
4.7F
1k
TTL
Input
2N3904
1k
5V
1kΩ
1%
+
10F
330Ω
1%
Note A: V = (Intended V ) + (V
)
IN(MIN)
OUT
DROPOUT (MAX)
Figure 11. 5V Regulator with Shutdown
LAYOUT CONSIDERATIONS
Parasitic line resistance can degrade load regulation. In order not to affect the behavior of the regulator,
it is best to connect R1 to the case as illustrated in Figure 12. For the same reason, R2 should be
connected to the negative side of the load.
RPParasitic Line
Resistance
VIN
SPX1202
VOUT
Connect R1 to
Case of Regulator
ADJ
R1
RL
R2
Connect R2 to Load
Figure 12. Recommended Connections for Best Results
SOT-223 (M3)
TO-252 (R)
TO-220-3 (U)
PACKAGE PINOUTS
TO-263-3 (T)
Mar13-07
1 23
ADJ/GND V OUT V IN
Top View
1 23
ADJ/GND
V
OUT
V IN
123
Front View
ADJ/GND V OUT V IN
Front View
SPX1202 600 mA Low Dropout Linear Regulator
123
ADJ/GND V OUT V IN
Top View
© 2007 Sipex Corporation
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