ISL8200M
Typical Performance Curves
FIGURE 18. 4-BOARD CLOCK SYNC (V IN = 12V)
FIGURE 19. OVER CURRENT PROTECTION
V IN = 0V to 18V
V OUT = 1.2V
I OUT = 0A
FIGURE 20. 50% PRE-BIAS START UP
Applications Information
Programming the Output Voltage ( R SET )
Note: ISL8200M has integrated 2.2k Ω resistances into
the module dividing resistor for bottom side (R OS1 ). The
resistance for different output voltages are as follows:
The ISL8200M has an internal 0.6V ± 0.7% reference
voltage. Programming the output voltage requires a
dividing resistor (R SET ) between VOUT_SET pin and
VOUT regulation point. The output voltage can be
calculated as shown in Equation 1:
V OUT
R SET
TABLE 1. V OUT -R SET
0.6V 0.8V
0 Ω 732 Ω
1.0V
1.47k Ω
1.2V
2.2k Ω
V OUT = 0.6 × ? 1 + --------------- ?
? R SET ?
? R OS ?
(EQ. 1)
V OUT
R SET
1.5V
3.32k Ω
1.8V
4.42k Ω
2.0V
5.11k Ω
2.5
6.98k Ω
13
V OUT
R SET
3.3
10k Ω
5.0
16.2k Ω
6.0
20k Ω
FN6727.1
February 26, 2010
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