SA1LF Datasheet, PDF (14/15 Pages) Bothhand USA, LP. – 1 Watt SMD O/P DC-DC Converter

SA1 LF Series
1 Watt SMD Single O/P DC-DC Converter
Single and Dual Output
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
converter
Co
Copper strip
Oscilloscope
Load
Co: usually 0.47uF.
1. Temperature derating curve: The DC-DC converter will operate over a wider temperature
range if less power is drawn from the output and the device is already running. The
temperature derating curve shows the operating power-temperature range. As shown below.
120
Output₁₀₀
Power
(%) ⁸⁰
60
40
20
0
-40 -20
Ambient Temp.TA ( _℃)
0
20
40
60
80 100 120
10. Switching frequency: The nominal operating frequency of the DC-DC converters.
11.Input to output isolation: The dielectric breakdown strength test between input and output
circuits. This is the isolation voltage the device is capable of withstanding for a specified
time, usually 1 second or 1 minute.
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