SLIN-20E1A0 BEL [Bel Fuse Inc.], SLIN-20E1A0 Datasheet - Page 21

• Manufacturer Part Number: SLIN-20E1A0
• Description: NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 14 Vdc Input, 0.69 Vdc - 5.5 Vdc /20 A Outputs
• Manufacturer: BEL [Bel Fuse Inc.]

Thermal Considerations (continued)
The preferred airflow direction and the thermal reference points, T
below. For reliable operation the temperatures at these points should not exceed 125
module should not exceed the rated power of the module (Vo,set x Io,max).
Example Application Circuit
Requirements:
Vin:
Vout:
Iout:
ΔVout:
Vin, ripple
CI1
CI2
CO1
CO2
CTune
RTune
RTrim
October 8, 2009
Vin+
NON-ISOLATED DC/DC CONVERTERS
4.5 Vdc - 14 Vdc Input, 0.69 Vdc - 5.5 Vdc /20 A Outputs
+
CI2
12V
1.8V
15A max., worst case load transient is from 10A to 15A
1.5% of Vout (36mV) for worst case load transient
1.5% of Vin (180mV, p-p)
2 x 22μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20)
200μF/16V bulk electrolytic
5 x 47μF/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19)
2 x 330μF/6.3V Polymer (e.g. Sanyo, Poscap)
22nF ceramic capacitor (can be 1206, 0805 or 0603 size)
150 ohms SMT resistor (can be 1206, 0805 or 0603 size)
6.19kΩ 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] •
CI1
Preferred airflow direction and location of hot-spot of the module (Tref).
Q1
ON/OFF
VIN
MODULE
GND
VOUT
TRIM
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
S+
S-
RTUNE
CTUNE
RTrim
ref
, used in the specifications are also shown
CO1
o
C. The output power of the
Vout+
+
CO2
www.belfuse.com
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