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What is UM3511?

This electronic component, produced by the manufacturer "ETC", performs the same function as "40 Watts Dc-dc Converters".


UM3511 Datasheet PDF - ETC

Part Number UM3511
Description 40 Watts Dc-dc Converters
Manufacturers ETC 
Logo ETC Logo 


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UM3500 SERIES
40 Watts DC-DC Converters
Synchronous-Rectifier Topology
Remote On/Off Control
www.DataSCheoetn4Uti.nneut ous Short Circuit Protection
High Efficiency
Non-Isolated
Current Share Function
SPECIFICATIONS
All specifications are typical at nominal line, full load and
25°C unless otherwise noted.
Mespek Oy, PL103, 00701 Helsinki
Puh. (09)3507360 Fax (09)3453384
http://www.mespek.com
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
INPUT SPECIFICATIONS
Input Voltage Range, 5V … … … … … ..… … … … … 4.75-5.5V
12V … … … … … … .… … … … 10.4-13.6V
Input Filter … … … … … … … … … … … … ..… … … ... Capacitive
OUTPUT SPECIFICATIONS
Voltage Accuracy .… … … … … … … … … … … … .… ± 2 % max.
Transient Response(25% Step Load Change) … .. <500 S
Line Regulation1 … ..… … … … … … … … … … … .. ±0.5% max.
Load Regulation2 … … … … … … … … … … … ..… . ±0.7% max.
Ripple and Noise, 20MHz BW3 … … … … .… 75mV P-P max.
Temperature Coefficient … … … … … … .…±0.02%/°C max.
Short Circuit Protection .… … … … … … … ..… … Continuous
Automatic Recovery
GENERAL SPECIFICATIONS
Efficiency .… … … … … … … … … … … … … … ..… .… See Table
Switching Frequency … ..… … … … … … … … … .. 200KHz typ.
Operating Temperature Range4 … .… … .… -25°C to +100°C
Storage Temperature ....… .… … … … … … … -40°C to+105°C
Cooling … … … … … … … … … … ..… … … Free Air Convection
Dimensions … … … … … … … … .… … … ..… 2 x 1 x 0.4 inches
(50.8 x 25.4 x 10.2mm)
Case Material … … … ..… … … … Black-Coated Copper with
Non-Conductive Base
100%
Operating
Temperature
-25 50 100 (°C)
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 converters in parallel. Limitations to this
scheme are dependent primarily on matching of the
resistances in the converter: mismatch in resistance
results in one converter delivering more current than
another. When using this current share function, Pin
1(SYNC) and Pin 3(PWM) must be connected to each
other or be floating if used as single unit.
REMOTE ON/OFF CONTROL
Logic Compatibility… … … … … .CMOS or Open Collector TTL
Converter ON.… … … … .… … … … >+2.5 VDC or Open Circuit
Converter OFF… … … … … … … … .<+0.8 VDC or Short Circuit
Control Common… … … … … ..… … .Referenced to Input Minus
UNIVERSAL
MICROELECTRONICS
3,27TH RD., TAICHUNG INDUSTRIAL PARK,
TAICHUNG, TAIWAN, R.O.C.
TEL: 886-4-23590096 FAX: 886-4-23590129
UM3500
1 of 2
REV.1


Part Details

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Part NumberDescriptionMFRS
UM3511The function is 40 Watts Dc-dc Converters. ETCETC

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