SLIN-03E1A_10 Datasheet, PDF (21/26 Pages) Bel Fuse Inc. – NON-ISOLATED DC/DC CONVERTERS

NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 14 Vdc Input, 0.59 Vdc - 5.5 Vdc /3 A Outputs
December 3, 2010
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Thermal Considerations (continued)
The thermal reference points, T_ref, used in the specifications are also shown below. For reliable operation the
temperatures at these points should not exceed 120^oC. The output power of the module should not exceed the
rated power of the module (Vo,set x Io,max).
Preferred airflow direction and location of hot-spots of the module (Tref).
Example Application Circuit
Requirements:
Vin:
12V
Vout:
1.8V
Iout:
2.25A max., worst case load transient is from 1.5A to 2.25A
ΔVout:
1.5% of Vout (27mV) for worst case load transient
Vin, ripple
1.5% of Vin (180mV, p-p)
Vin+
VIN
VOUT
SENSE
+
CI2
MODULE
CI1
Q3 ^ON/OFF
TRIM
GND
Vout+
RTUNE
CTUNE
CO1
RTrim
CI1
CI2
CO1
CTune
RTune
RTrim
10μF/16V ceramic capacitor (e.g. Murata GRM Series)
47μF/16V bulk electrolytic
2 x 47μF/6.3V ceramic capacitor (e.g. TDK C Series)
4.7nF ceramic capacitor (can be 1206, 0805 or 0603 size)
180 ohms SMT resistor (can be 1206, 0805 or 0603 size)
4.87kΩ 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
21