SLAN-03D2A0 Datasheet, PDF (14/25 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
3 Vdc – 14.4 Vdc Input, 0.6 Vdc - 5.5 Vdc /3 A Outputs
Mar. 16, 2012
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Monotonic Start-up and Shutdown
The SLAN-03D2Ax has 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 SLAN-03D2Ax can start into a prebiased output as long as the prebias voltage is 0.5V less than the set
output voltage.
Output Voltage Programming
The output voltage of the module is programmable to any voltage from 0.6dc to 5.5Vdc by connecting a resistor
between the Trim and GND pins of the module. Certain restrictions apply on the output voltage set point
depending on the input voltage. These are shown in the Output Voltage vs. Input Voltage Set Point Area plot in
Fig. 41. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage must be lower
than the maximum of 12V. The Lower Limit curve shows that for output voltages higher than 0.6V, the input
voltage needs to be larger than the minimum of 3V.
Figure 41
Output Voltage vs. Input Voltage Set Point Area plot showing limits where the output voltage can be set for
different input voltages.
Figure 42
VIN(+ )
VO(+ )
ON/O FF
V S+
TRIM
LOA D
Rtri m
GND
Circuit configuration for programming output voltage using an external resistor.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel [phone]  Fax [phone]  www.belfuse.com
14