LX8585-XX MICROSEMI [Microsemi Corporation], LX8585-XX Datasheet - Page 4

• Manufacturer Part Number: LX8585-XX
• Description: 4.6A Low Dropout Positive Regulators
• Manufacturer: MICROSEMI [Microsemi Corporation]

Copyright © 1997
Rev. 2.2a, 2005-11-10
Note A: V
(Note A)
* C1 improves ripple rejection.
frequency.
V
X
10µF
IN
C
should be ≈ R1 at ripple
TM
IN(MIN)
Figure 1 – Improving Ripple Rejection
or 100µF Aluminum
= (Intended V
IN
LX8585/85A
10µF Tantalum
ADJ
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
OUT
Output
OUT
) + (V
V
(Note A)
IN
365 Ω
V
TTL
DROPOUT(MAX)
IN
1%
R2
R1
121Ω
1%
Figure 3 – 5V Regulator With Shutdown
Figure 4 – Fixed 3.3V Output Regulator
)
A P P L I C A T I O N C I R C U I T S
10µF
1k
IN
C1
10µF*
LX8585-33/85A-33
Integrated Products Division
IN
5V
LX8585/85A
1k
®
Microsemi
150 µF
GND
V
ADJ
OUT
2N3904
OUT
OUT
4.6A Low Dropout Positive Regulators
(Note A)
V
IN
** V
Figure 2 – 1.2V – 8V Adjustable Regulator
Needed if device is far from filter capacitors.
OUT
P
121Ω
1%
365Ω
1%
C1*
10µF
RODUCTION
= 1.25V 1 +
Min. 15µF Tantalum or
100µF Aluminum capacitor.
May be increased without
limit. ESR must be less
than 50mΩ.
IN
LX8585/85A
3.3V
LX8585-xx / LX858A-xx
ADJ
100µF
5V
R2
1k
D
R2
R1
ATA
OUT
S
HEET
R1
121Ω
C2
100µF
V
OUT
**
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