2 YEAR WARRANTY
SIL20C Series
5 Vin and 12 Vin single output
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated SPECIFICATIONS
File Name: sil20c.pdf Rev (01): 13 Dec 2005
DC-DC CONVERTERS C Class Non-isolated 1
•20 A current rating
•Input voltage range: 4.5 Vdc to 5.5 Vdc or 10.2 Vdc to 13.8 Vdc
•Output voltage range: 0.9 Vdc to 5.0 Vdc
•Industry leading value
•Cost optimized design
•Excellent transient response
•Output Voltage adjustability
•Pathway for future upgrades
•Supports silicon voltage migration
•Resulting in reduced design-in and qualification time
•Designed in reliability: MTBF of >7 million hrs
per Telcordia SR-332
•Available RoHS compliant
The SIL20C Series is a new high density open frame non-isolated converter for space-sensitive
applications. Each model has a wide input range (4.5 Vdc to 5.5 Vdc or 10.2 Vdc to 13.8 Vdc)
and offer a wide 0.9 Vdc to 3.3 Vdc/5 Vdc output voltage range with a 20 A load. An external
resistor adjusts the output voltage from its pre-set value of 0.9 Vdc to any value up to the
maximum allowed value for that model. Typical efficiencies are 87% for the 5 V input version
and 91% for the 12 V input version at full load conditions. The SIL20C series offers remote
ON/OFF and overcurrent protection as standard. With full international safety approval including
EN60950 and UL/cUL60950, the SIL20C reduces compliance costs and time to market.
NEW Product
OUTPUT SPECIFICATIONS
Voltage adjustability 5 V input models 0.9-3.3 Vdc
(See Note 5) 12 V input models 0.9-5.0 Vdc
Output setpoint accuracy With 1.0% trim resistors ±2.5%
Line regulation Low line to high line ±0.2% max.
Load regulation ±1.3% max.
Min/max load 0 A/20 A
Overshoot 5 V input models 3% max.
(at turn on) 12 V input models 1% max.
Ripple and noise (See Note 1) See table
5 Hz to 20 MHz
Transient response Deviation 100 mV
(See Note 2) 200 µs recovery to
within regulation band
INPUT SPECIFICATIONS
Input voltage range 5 V input model 4.5-5.5 Vdc
12 V input model 10.2-13.8 Vdc
Input current Minimum load 65 mA
Remote OFF 20 mA
Input current (max.) 5 V input model 15 A @ lo max.
(See Note 3) 12 V input model 11 A @ lo max.
Input reflected ripple (See Note 4) 200 mA
Remote ON/OFF
Logic compatibility Active high
ON >2.4 Vdc
OFF <0.8 Vdc
Start-up time Power up <20 ms
(See Note 9) Remote ON/OFF <20 ms
International Safety Standard Approvals
UL/cUL CAN/CSA 22.2 No. E139421
UL60950 file No. E139421
TÜV Product Service (EN60950) Certificate No. B 04 08 19870 228
CB report and certificate to US/6415C/UL
INPUT SPECIFICATIONS (CONTD.)
Turn ON threshold 5 Vin 4.5 Vdc
12 Vin 9.0 Vdc
Turn OFF threshold 5 Vin 4.3 Vdc
12 Vin 7.5 Vdc
GENERAL SPECIFICATIONS
Efficiency See Table
Switching frequency Fixed 275 kHz typ.
Approvals and (See Note 4) TÜV Product Services
standards IEC60950, UL/cUL60950
Material flammability UL94V-0
Weight 14.2 g (0.5 oz)
MTBF Telcordia SR-332 7,963,574 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance Operating ambient, 0 ºC to +80 ºC
(See Note 10) temperature
Non-operating -40 ºC to +125 ºC
PROTECTION
Short-circuit protection Hiccup, non-latching
RECOMMENDED SYSTEM CAPACITANCE
Input capacitance (See Note 11) 270 µF/20 mΩesr max.
Output capacitance (See Note 11) 680 µF/10 mΩesr max.