TABLE 1. Low ESR Capacitor Manufacturers (Continued)

Manufacturer

Phone

Website

Capacitor Type

Murata

(800)-831-9172

www.murata.com

Ceramic chip capacitors

Taiyo Yuden

(800)-348-2496

www.t-yuden.com

Ceramic chip capacitors

Tokin

(408)-432-8020

www.tokin.com

Ceramic chip capacitors

Other Applications

Paralleling Devices

Any number of LM2765s can be paralleled to reduce the out-

put resistance. Each device must have its own pumping ca-

pacitor C

shown in Figure 3. The composite output resistance is:

Cascading Devices

Cascading the LM2765s is an easy way to produce a greater

voltage (A two-stage cascade circuit is shown in Figure 4).

The effective output resistance is equal to the weighted sum

of each individual device:

R

Note that increasing the number of cascading stages is prac-

itically limited since it significantly reduces the efficiency, in-

creases the output resistance and output voltage ripple.

DS101281-19

FIGURE 3. Lowering Output Resistance by Paralleling Devices

DS101281-20

FIGURE 4. Increasing Output Voltage by Cascading Devices

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