LM39500 HTC Korea, LM39500 Datasheet
LM39500
Related parts for LM39500
LM39500 Summary of contents
Page 1
... The LM39500/1/2 is ideal for PC Add-In cards that need to convert from standard 5V or 3.3V, down to new, lower core voltages. A guaranteed maximum dropout voltage of 500mV over all operating conditions allows the LM39500/1/2 to provide 2.5V from a supply as low as 3V. The LM39500 also has fast transient response, for heavy switching applications. The device requires only 47F of output capacitance to maintain stability and achieve fast transient responseThe LM39500/1/2 is fully protected with overcurrent limiting,thermal shutdown, reversed-battery and reversed-lead in-sertion protection ...
Page 2
... Lead Temperature (soldering, 5 sec) : 260°C ESD, Note 3 Operating Ratings (Note 2) Supply Voltage (VIN) : +2.25V to +16V Enable Voltage (VEN) : +16V Maximum Power Dissipation (PD(max)) Junction Temperature (TJ) : –40°C to +125°C Package Thermal Resistance TO-263(θ 2°C/W JC TO-220(θ 2°C/W JC LM39500/39501/39502 Note 4 2 LM39501 HTC ...
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... Low-Voltage Low-Dropout Regulator Block Diagram LM39500 Fixed (1.5V,1.8V,2.5V,3.3V,5.0V) LM39501 Fixed with Flag and Enable LM39502 Adjustable 3 LM39500/39501/39502 HTC ...
Page 4
... See “Applications Information.” – T OUT(worst case) J(max) decreases to 98% of its nominal output voltage with V OUT + I . GND OUT = 0V OUT 4 LM39500/39501/39502 ) where T is +125℃ and T J(min) J(max OUT is 0℃ J(min) + 1V. HTC ...
Page 5
... The LM39500/1/2 regulator is fully protected from damage due to fault conditions. Current limiting is provided. This limiting is linear output current during overload conditions is constant. Thermal shutdown disables the device when the die temperature exceeds the maximum safe operating tem-perature ...
Page 6
... When converting from 3.3V to 2.5V, the NPN-based regulators are already operating in dropout, with typical dropout requirements of 1.2V or greater. To convert down to 2.5V without operating in dropout, NPN-based regulators require an input voltage of 3.7V at the very least. The LM39500/1/2 regulator will provide excellent performance with an input as low as 3.0V. This gives the PNP-based regulators a distinct advantage over older, NPN-based linear regulators does not have the headroom to dothis conversion ...