SIP20C Series
S i n g l e o u t p u t
DC/DC CONVERTERS 9-20W Non-isolated DC/DC Regulators
1
• Updated version of SIP20
• Best-of-class wide output trim range
• Industry standard footprint
3
• High power density (60W/in )
• High Efficiency 90%
• Fixed frequency (500kHz)
• Remote ON/OFF
• Undervoltage lockout (UVLO)
• Remote sense option
The SIP20C series are non-isolated DC/DC converters packaged in a single-in-line
footprint (2.5 x 0.55 x 0.23 inches) giving designers a cost effective solution for conversion
of 5VDC to 3.3VDC and lower voltages. The SIP20C offers a best-of-class wide output trim
range which allows maximum design flexibility and a pathway for future upgrades. For
example, the 1.5V model can be trimmed as low as 1V. Local voltage conversion by the
SIP20C from existing 5V system voltages eliminates the need for redesign of existing
power architectures when voltage requirements change. The SIP20C is designed for
applications that include distributed power, workstations, computers and file servers.
Implementing state of the art surface mount technology and automated manufacturing
techniques, the SIP20C offers compact size and efficiencies of 90%. The SIP20C is an
updated version of the original SIP20 and is fully compatible with the original model.
2 YEAR WARRANTY
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
SPECIFICATIONS
OUTPUT SPECIFICATIONS
EMC CHARACTERISTICS (4)
Voltage adjustability
S3V3
S2V5
S1V5
60% to 115%
60% to 110%
87% to 130%
Radiated emissions
Electrostatic discharge
EN55022/11, FCC part 15
EN61000-4-2, IEC801-2
Level A
GENERAL SPECIFICATIONS
Efficiency
Set point accuracy
Line regulation
(See Note 1)
2.7%
0.3%
0.3%
0A
See table
Non-isolated
500kHz typ.
Vin = 4.5V to 5.5V
Io = 0A to 6A
Isolation voltage
Load regulation
Switching frequency
Fixed
Minimum load
Approvals and
standards (See Note 7)
VDE0805, EN60950, IEC950
UL1950, CSA C22.2 No. 950
Overshoot/undershoot
None
Ripple and noise
(See Note 8)
0 to 20MHz BW
100mV pk-pk,
30mV rms max.
Material flammability
Dimensions
UL94V-0
(LxWxH)
63.5 x 13.97 x 5.84 mm
2.5 x 0.55 x 0.23 inches
Temperature coefficient
0.01%/°C
Transient response
(See Note 2)
2.0% max. deviation
300µs recovery
Pin length
0.135 0.02 inches (3.43 0.5mm)
5g (0.18oz)
Weight
to within 1.0%
MTBF
MIL-HDBK-217F
>1,000,000 hours
Remote sense
(See Note 6)
No load
0.5VDC compensation
ENVIRONMENTAL SPECIFICATIONS
INPUT SPECIFICATIONS
Input voltage range
Input current
Thermal performance
Operating ambient,
See curve
convection cooled
Operating ambient,
300LFM forced air
Non-operating
4.5 to 5.5VDC
150mA
-25°C to +85°C
See Curve
-55°C to +100°C
Input current
@ Io max. and
Vin = 0 to 5.5V
5.3A max.
Altitude
Operating
Non-operating
10,000 feet max.
40,000 feet max.
Input reflected ripple
Remote ON/OFF
Start-up time
(See Note 3)
200mA
(See Note 5)
1.0ms
Vibration
5Hz to 500Hz
2.4G rms (approx.)
International Safety Standard Approvals
VDE0805/EN60950/IEC950 pending
UL1950
External capacitor
(See Note 4)
100µF
CSA 22.2 No. 950 pending
File Name: SIP20C.PDF Rev: 31 OCT 2000