SLAN-03D2A0 Datasheet, PDF (19/25 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
Thermal Consideration(continued)
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Figure 47
Preferred airflow direction and location of hot-spot of the module (Tref).
Example Application Circuit
Requirements:
Vin:
Vout:
Iout:
Vout:
Vin, ripple
12V
1.8V
2.25A max., worst case load transient is from 1.5A to 2.25A
1.5% of Vout (27mV) for worst case load transient
1.5% of Vin (180mV, p-p)
Vin+
VIN
VOUT
SENSE
PGOOD
Vout+
RTUNE
+
CI2
CI1
MODULE
ON/OFF TRIM
CTUNE
+
CO1
CO2
GND
RTrim
CI1
CI2
CO1
CO2
C_Tune
R_Tune
R_Trim
1x22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20 or equivalent)
47F/16V bulk electrolytic
2 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19 or equivalent)
None
2200pF ceramic capacitor (can be 1206, 0805 or 0603 size)
261 ohms SMT resistor (can be 1206, 0805 or 0603 size)
10k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302  Tel [phone]  Fax [phone]  www.belfuse.com
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