Techcode®
3A 380KHz 28V PWM Buck DC/DC Converter
Output Voltage VS R1, R2 Resistor Selection Guide
Vout
1.8V
2.5V
3.3V
5V
9V
12V
Vout = (1+R1/R2)*1.222V
R1
3.9K
3.2K
6.2K
6.2K
13K
16K
Table 3. Vout VS. R1, R2 Select Table
DATASHEET
TD1583
R2
8.2K
3K
3.6K
2K
2K
1.8K
December, 23, 2009.
Techcode Semiconductor Limited
10
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