SP6133EB 查看數據表（PDF） - Signal Processing Technologies

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SP6133EB

High Voltage / Synchronous /Buck Controller Ideal for 2A to 20A / High Performance / DC-DC Power Converters

Signal Processing Technologies 

Step by step design procedures:

a. R2 = 21.8Ω

b. CZ3 = 487pF

c. Let fc =40KHz then:

d. RZ2 = 32.9kΩ

e. CZ2 = 1390pF

f. CP1 = 22pF

g. RZ3 = 1.09KΩ

h. CF1 = 22pF to stabilize SP6138ER1 internal Error Amplifier

The above component values were used as a starting point for compensating the

converter and after laboratory testing the values shown in circuit schematic of page 1

were used for optimum operation.

Figure 12- Gain/Phase measurement of SP6133EB shown on page 1, cross-over

frequency (fc) is 60KHz with a corresponding phase of 50 degrees

Rev 3/30/06

SP6133 Evaluation Manual

Page 7 of 10

Copyright 2006 Sipex Corporation

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