Intersil ISL85003EVAL2Z, Руководство пользователя

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ISL85003EVAL2Z, ISL85003AEVAL2Z
AN1930 Rev.1.00 Page 2 of 5
Aug 28, 2014
Components Selection
V
OUT
0.8V 1V 1.2V 1.5V 1.8V 2.5V 3.3V 5V
C
1
, C
2
10µF 10µF 10µF 10µF 10µF 10µF 10µF 10µF
C
5
22µF 22µF 22µF 47µF 47µF 47µF 47µF 47µF
C
6
22µF 22µF 22µF 22µF 22µF 22µF 22µF 22µF
C
4
Open Open Open 4.7pF 4.7pF 4.7pF 4.7pF 4.7pF
L
1
1.8µH 2.2µH 2.2µH 3.3µH 3.3µH 3.3µH 4.7µH 4.7µH
R
1
301k Ω 301k Ω 301k Ω 301k Ω 301k Ω 301k Ω 301k Ω 301k Ω
R
2
Open 1.2M Ω 604k Ω 344k Ω 241k Ω 142k Ω 96.3k Ω 57.6k Ω
NOTE: V
IN
= 12V, I
OUT
= 3A; The components selection table is a suggestion for typical application using internal compensation mode. For applications
that require high output capacitance greater than 200µF, R
1
should be adjusted to maintain a loop response bandwidth about 40kHz.
ISL85003EVAL2Z Evaluation Board
FIGURE 1. TOP VIEW FIGURE 2. BOTTOM VIEW