LX8117B Microsemi Corporation, LX8117B Datasheet - Page 9

• Manufacturer Part Number: LX8117B
• Description: 0.8, 1 & 1.2a Low Dropout Positive Regulators
• Manufacturer: Microsemi Corporation

Copyright © 1999
Rev. 1.5a
Note A: V
(Note A)
* C1 improves ripple rejection.
V
X
frequency.
10µF
IN
C
should be
IN (MIN)
FIGURE 4 — IMPROVING RIPPLE REJECTION
IN
R1 at ripple
= (Intended V
LX8117-xx
ADJ
or 100µF Aluminum
OUT
10µF Tantalum
PRODUCTION DATA - Information contained in this document is proprietary to Linfinity, and is current as of publication date. This document
may not be modified in any way without the express written consent of Linfinity. Product processing does not necessarily include testing of
all parameters. Linfinity reserves the right to change the configuration and performance of the product and to discontinue product at any time.
0.8, 1 & 1.2A L
OUT
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
365
) + (V
1%
R2
V
IN
P
DROPOUT (MAX)
R1
121
1%
R O D U C T I O N
FIGURE 6 — FIXED 3.3V OUTPUT REGULATOR
T Y P I C A L A P P L I C A T I O N S
C1
10µF*
)
O W
IN
5V
D
150µF
LX8117-xx/8117A-xx/8117B-xx
V
R O P O U T
LX8117-33
OUT
GND
D
P
A T A
(Note A)
OUT
O S I T I V E
V
IN
* Needed if device is far from filter capacitors.
** V
S
FIGURE 5 — 1.2V - 8V ADJUSTABLE REGULATOR
OUT
H E E T
R
C1*
10µF
= 1.25V 1 +
E G U L AT O R S
Min. 15µF Tantalum or
100µF Aluminum capacitor.
May be increased without
limit. ESR must be less
than 50m .
IN
LX8117-xx
3.3V
ADJ
R2
1k
R2
R1
OUT
R1
121
C2
100µF
V
OUT
**
9