AT1799S AIMTRON [Aimtron Technology], AT1799S Datasheet - Page 9

• Manufacturer Part Number: AT1799S
• Description: 2A Step-Down Voltage Regulator
• Manufacturer: AIMTRON [Aimtron Technology]

AT1799
2A Step-Down Voltage Regulator
Cycle-by-Cycle Over-Current Protection
The AT1799 provides cycle-by-cycle over-current protection. Current limit is
accomplished using a separate dedicated comparator. If the current sense amplifier
output voltage is larger than current-limited threshold level, it will be immediately
turned off power MOS. The current-limit feature protects against a hard short or over
current fault at the output.
Thermal-Overload Protection
Thermal-overload protection limits total power dissipation in the AT1799. When the junction
temperature exceeds Tj=160
, a thermal sensor activates the thermal protection, which shuts
℃
down the IC, allowing the IC to cool. Once the device cools down by 15
, IC will
℃
automatically recover normal operation. For continuous operation , do not exceed the absolute
maximum junction-temperature rating of Tj=150
.
℃
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
http://www.aimtron.com.tw
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8/23/2006 REV:1.1
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