LM2662, LM2663
SNVS002D –JANUARY 1999–REVISED MAY 2013
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Figure 19. Output Source Resistance vs Oscillator Frequency
Table 3. Low ESR Capacitor Manufacturers
Manufacturer
Nichicon Corp.
Phone
Capacitor Type
(708)-843-7500
(803)-448-9411
(207)-324-4140
(619)-661-6835
(800)-831-9172
(800)-348-2496
(408)-432-8020
PL, PF series, through-hole aluminum electrolytic
TPS series, surface-mount tantalum
593D, 594D, 595D series, surface-mount tantalum
OS-CON series, through-hole aluminum electrolytic
Ceramic chip capacitors
AVX Corp.
Sprague
Sanyo
Murata
Taiyo Yuden
Tokin
Ceramic chip capacitors
Ceramic chip capacitors
Other Applications
PARALLELING DEVICES
Any number of LM2662s (or LM2663s) can be paralleled to reduce the output resistance. Each device must have
its own pumping capacitor C1, while only one output capacitor Cout is needed as shown in Figure 20. The
composite output resistance is:
(4)
Figure 20. Lowering Output Resistance by Paralleling Devices
10
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