Datasheet

Number of Devices
R
out
of each LM2660
R
out
=
LM2660
SNVS135D –SEPTEMBER 1999–REVISED MAY 2013 www.ti.com
Figure 17. Output Source Resistance vs Oscillator Frequency
Table 2. Low ESR Capacitor Manufacturers
Manufacturer Capacitor Type
Nichicon Corp. PL, PF series, through-hole aluminum electrolytic
AVX Corp. TPS series, surface-mount tantalum
Sprague 593D, 594D, 595D series, surface-mount tantalum
Sanyo OS-CON series, through-hole aluminum electrolytic
Other Applications
PARALLELING DEVICES
Any number of LM2660s can be paralleled to reduce the output resistance. Each device must have its own
pumping capacitor C
1
, while only one output capacitor C
out
is needed as shown in Figure 18. The composite
output resistance is:
(4)
Figure 18. Lowering Output Resistance by Paralleling Devices
10 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated
Product Folder Links: LM2660