DC/DC CONVERTERS
9-20W Non-isolated DC/DC Regulators
1
2 YEAR WARRANTY
SIP20C Series
Single output
• Updated version of SIP20
• Best-of-class wide output trim range
• Industry standard footprint
• High power density (60W/in3)
• 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.
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
EMC CHARACTERISTICS (4)
Radiated emissions
EN55022/11, FCC part 15
Level A
Electrostatic discharge
EN61000-4-2, IEC801-2
GENERAL SPECIFICATIONS
Efficiency
See table
Isolation voltage
Non-isolated
Switching frequency
Fixed
500kHz typ.
Approvals and
VDE0805, EN60950, IEC950
standards (See Note 7)
UL1950, CSA C22.2 No. 950
Material flammability
UL94V-0
Dimensions
(LxWxH)
63.5 x 13.97 x 5.84 mm
2.5 x 0.55 x 0.23 inches
Pin length
0.135 ±0.02 inches (3.43 ±0.5mm)
Weight
5g (0.18oz)
MTBF
MIL-HDBK-217F
>1,000,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient,
See curve
convection cooled
Operating ambient,
-25°C to +85°C
300LFM forced air
See Curve
Non-operating
-55°C to +100°C
Altitude
Operating
10,000 feet max.
Non-operating
40,000 feet max.
Vibration
5Hz to 500Hz
2.4G rms (approx.)
OUTPUT SPECIFICATIONS
Voltage adjustability
S3V3
60% to 115%
S2V5
60% to 110%
S1V5
87% to 130%
Set point accuracy
(See Note 1)
±2.7%
Line regulation
Vin = 4.5V to 5.5V
±0.3%
Load regulation
Io = 0A to 6A
±0.3%
Minimum load
0A
Overshoot/undershoot
None
Ripple and noise
0 to 20MHz BW
100mV pk-pk,
(See Note 8)
30mV rms max.
Temperature coefficient
±0.01%/°C
Transient response
±2.0% max. deviation
(See Note 2)
300µs recovery
to within ±1.0%
Remote sense
(See Note 6)
0.5VDC compensation
INPUT SPECIFICATIONS
Input voltage range
4.5 to 5.5VDC
Input current
No load
150mA
Input current
@ Io max. and
5.3A max.
Vin = 0 to 5.5V
Input reflected ripple
(See Note 3)
200mA
Remote ON/OFF
(See Note 5)
Start-up time
1.0ms
External capacitor
(See Note 4)
100µF
SPECIFICATIONS
International Safety Standard Approvals
VDE0805/EN60950/IEC950 pending
UL1950
CSA 22.2 No. 950 pending
File Name: SIP20C.PDF Rev: 31 OCT 2000
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