TABLE 2. Low ESR Capacitor Manufacturers

Manufacturer

Phone

FAX

Capacitor Type

Nichicon Corp.

(708)-843-7500

(708)-843-2798

PL, PF series, through-hole aluminum electrolytic

AVX Corp.

(803)-448-9411

(803)-448-1943

TPS series, surface-mount tantalum

Sprague

(207)-324-4140

(207)-324-7223

593D, 594D, 595D series, surface-mount tantalum

Sanyo

(619)-661-6835

(619)-661-1055

OS-CON series, through-hole aluminum electrolytic

Other Applications

PARALLELING DEVICES

Any number of MAX660s can be paralleled to reduce the output resistance. Each device must have its own pumping capacitor

C

CASCADING DEVICES

Cascading the is an easy way to produce a greater negative voltage (as shown in

Figure 6). If n is the integer representing the

number of devices cascaded, the unloaded output voltage V

sum of each individual device:

DS100898-32

FIGURE 4. Output Source Resistance vs Oscillator Frequency

DS100898-7

FIGURE 5. Lowering Output Resistance by Paralleling Devices

www.national.com

7