NON-ISOLATED DC/DC CONVERTERS
8.3 Vdc - 14 Vdc Input
0.75 Vdc - 5.0 Vdc/16 A Output
Output Trim Equations
Equation for calculating the trim resistor (in ? ) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up resistor should be connected between the Trim pin and Ground.
Vout
R trimup =
10500
V adj ? 0 . 7525
? 1000
Module
Sense
trim
Rtrim
GND
Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up voltage should be connected between the Trim pin and Ground.
Vout
V trimup = 0 . 7 ? 0 . 0667 × ( V adj ? 0 . 7525 )
Module
Sense
trim
Vtrim
GND
Thermal Derating Curves
Vo=0.75 V
Vo=3.3 V
Vo=1.8 V
Vo=5.0 V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 ? Tel 201-432-0463 ? Fax 201-432-9542 ? www.belfuse.com
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