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/in
3
)
• 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
