Datasheet

LM2662, LM2663
SNVS002D –JANUARY 1999–REVISED MAY 2013 www.ti.com
Figure 19. Output Source Resistance vs Oscillator Frequency
Table 3. Low ESR Capacitor Manufacturers
Manufacturer Phone Capacitor Type
Nichicon Corp. (708)-843-7500 PL, PF series, through-hole aluminum electrolytic
AVX Corp. (803)-448-9411 TPS series, surface-mount tantalum
Sprague (207)-324-4140 593D, 594D, 595D series, surface-mount tantalum
Sanyo (619)-661-6835 OS-CON series, through-hole aluminum electrolytic
Murata (800)-831-9172 Ceramic chip capacitors
Taiyo Yuden (800)-348-2496 Ceramic chip capacitors
Tokin (408)-432-8020 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 C
1
, while only one output capacitor C
out
is needed as shown in Figure 20. The
composite output resistance is:
(4)
Figure 20. Lowering Output Resistance by Paralleling Devices
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