Mespek Oy, PL103, 00701 Helsinki Puh. (09)3507360 Fax (09)3453384 E-mail:
[email protected] http://www.mespek.com
UM3500 SERIES
40 Watts DC-DC Converters
♦ Synchronous-Rectifier Topology ♦ Remote On/Off Control ♦ Continuous Short Circuit Protection www.DataSheet4U.net ♦ High Efficiency ♦ Non-Isolated ♦ Current Share Function SPECIFICATIONS
All specifications are typical at nominal line, full load and 25°C unless otherwise noted.
NOTES:
1. Measure from high line to low line. 2. Measure from full load to 1/2 load. 3. Measured with 1uF ceramic cap. Connected to the output pins. 4. Output Power 100%
INPUT SPECIFICATIONS
Input Voltage Range, 5V … … … … … ..… … … … … 4.75-5.5V 12V … … … … … … .… … … … 10.4-13.6V Input Filter … … … … … … … … … … … … ..… … … ... Capacitive Operating Temperature (°C)
-25
50
100
OUTPUT SPECIFICATIONS
Voltage Accuracy .… … … … … … … … … … … … .… ± 2 % max. Transient Response(25% Step Load Change) … .. <500£gS Line Regulation 1 … ..… … … … … … … … … … … .. ±0.5% max. 2 Load Regulation … … … … … … … … … … … ..… . ±0.7% max. Ripple and Noise, 20MHz BW3 … … … … .… 75mV P-P max. Temperature Coefficient … … … … … … .…±0.02%/°C max. Short Circuit Protection .… … … … … … … ..… … Continuous Automatic Recovery
Maximum case temperature must not be exceeded 100°C. 5. UM3500 series can be used as parallel connection to provide current share function. The current that each converter delivers will thus be 1/N of the total current, if there are N total converte...
