PRODUCT DATABOOK 1996/1997
0.5A LOW DROPOUT POSITIVE REGULATORS
PR E L I M I N A RY D ATA S H E E T
TYPICAL APPLICATIONS
LX8415-xx
(Note A)
VIN
10µF
LX8415-xx
IN
OUT
ADJ
R1
121Ω
1%
5V
VOUT
150µF
* C1 improves ripple rejection.
XC should be ≈ R1 at ripple
frequency.
R2
365Ω
1%
C1
10µF*
FIGURE 4 — IMPROVING RIPPLE REJECTION
VIN
(Note A)
LX8415-xx
IN
OUT
ADJ
C1*
10µF
R2
1k
R1
121Ω
VOUT**
C2
100µF
* Needed if device is far from filter capacitors.
** VOUT = 1.25V
1
+
R2
R1
FIGURE 5 — 1.2V - 6V ADJUSTABLE REGULATOR
VIN
10µF Tantalum
or 100µF Aluminum
LX8415-33
IN
OUT
GND
3.3V
Min. 15µF Tantalum or
100µF Aluminum capacitor.
May be increased without
limit. ESR must be less
than 50mΩ.
FIGURE 6 — FIXED 3.3V OUTPUT REGULATOR
Note A: VIN (MIN) = (Intended VOUT) + (VDROPOUT ) (MAX)
PRELIMINARY DATA - Information contained in this document is pre-production data, and is proprietary to LinFinity. It may
not modified in any way without the express written consent of LinFinity. Product referred to herein is offered in sample form
only, and Linfinity reserves the right to change or discontinue this proposed product at any time.
Copyright © 1999
Rev. 0.4 1/99
7