SLIN-03E2AX Datasheet, PDF (17/25 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 14 Vdc Input, 0.59 Vdc - 5.5 Vdc /3 A Outputs

NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 14 Vdc Input, 0.59 Vdc - 5.5 Vdc /3 A Outputs
October 8, 2009
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Voltage Margining
Output voltage margining can be implemented in the SLIN-03E2Ax modules by connecting a resistor, R_margin-up,
from the Trim pin to the ground pin for margining-up the output voltage and by connecting a resistor, R_margin-down,
from the Trim pin to output pin for margining-down.
Vo
Rmargin-down
MODULE
Q2
Trim
Rmargin-up
Rtrim
Q1
GND
Circuit Configuration for margining Output voltage
Monotonic Start-up and Shutdown
The SLIN-03E2Ax modules have monotonic start-up and shutdown behavior for any combination of rated input
voltage, output current and operating temperature range.
Startup into Pre-biased Output
The SLIN-03E2Ax modules can start into a prebiased output as long as the prebias voltage is 0.5V less than the
set output voltage.
Power Good
The SLIN-03E2Ax modules provide a Power Good (PGOOD) signal that is implemented with an open-drain
output to indicate that the output voltage is within the regulation limits of the power module. The PGOOD signal
will be de-asserted to a low state if any condition such as over temperature, over current or loss of regulation
occurs that would result in the output voltage going ±10% outside the set-point value. The PGOOD terminal
should be connected through a pull-up resistor (suggested value 100KΩ) to a source of 5VDC or lower.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
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