Details, datasheet, quote on part number: FAN1585AT15
Description5A Adjustable/fixed Low Dropout Linear Regulator
CompanyFairchild Semiconductor
DatasheetDownload FAN1585AT15 datasheet
Cross ref.Similar parts: LM1084, LM1085, LM1086, LM1117, LM2931-N, LM2937-2.5, LM2937-3.3, LM2940-N, LM3480, LM3940
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Features, Applications


Fast transient response Low dropout voltage to 5A Load regulation: 0.05% typical Trimmed current limit On-chip thermal limiting Standard TO-220, TO-263 and TO-263 center cut packages


The FAN1585A, FAN1585A-1.5, and FAN1585A-1.8 are low dropout three-terminal regulators with 5A output current capability. These devices have been optimized for low voltage applications including VTT bus termination for FC-PGA, where transient response and minimum input voltage are critical. The FAN1585A-1.5 offers fixed 1.5V with 5A current capabilities for AGTL+ bus VTT termination for FC-PGA. The FAN1585A is ideal for low voltage microprocessor applications requiring a regulated output from to 3.6V with an input supply 5V or less, or for FC-PGA applications with significant trace resistance. Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. The FAN1585A series regulators are available in the industrystandard TO-220, TO-263 and TO-263 center cut power packages.


AGTL+ bus supply for FC-PGA Low voltage logic supply Post regulator for switching supply to 1.5V linear regulator to 1.8V linear regulator

Typical Applications

*With package soldered to 0.5 square inch copper area over backside ground plane or internal power plane, JA can vary from 30C/W to more than 40C/W. Other mounting techniques can provide a thermal resistance lower than 30C/W.

Parameter VIN Operating Junction Temperature Range Storage Temperature Range Lead Temperature (Soldering, 10 sec.) 0 -65 Min. Max. Unit V C

= 25C unless otherwise specified. The denotes specifications which apply over the specified operating temperature range. Parameter Reference Voltage Output Voltage4 Output Voltage5 Line Regulation1, 2 Load 2, 3 Dropout Voltage Current Limit Adjust Pin Current3 Adjust Pin Current Change Minimum Load Current Quiescent Current Ripple Rejection Thermal Regulation Temperature Stability Long-Term Stability RMS Output Noise of VOUT) Thermal Resistance, Junction to Case Thermal Shutdown 125C, 1000 hrs. TO-220 TO-263

Conditions 1.5V (VIN VOUT) 5.75V, 10mA IOUT 5A 3.0V VIN 8V 10mA IOUT 5A 3.3V VIN 8.3V 10mA IOUT 5A (VOUT + 1.5V) VIN 12V, IOUT = 10mA (VIN VOUT) 3V, 10mA IOUT 5A VREF = 1%, IOUT = 5A (VIN VOUT) 2V 1.5V (VIN VOUT) 5.75V, 10mA IOUT 5A 1.5V (VIN VOUT) 12V VIN = 120Hz, COUT = 22F Tantalum, (VIN VOUT) = 3V, IOUT 25C, 30ms pulse

Notes: 1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing. 2. Line and load regulation are guaranteed up to the maximum power dissipation. Power dissipation is determined by input/ output differential and the output currrent. Guaranteed maximum output power will not be available over the full input/output voltage range. 3. FAN1585A only. 4. FAN1585A-1.5 only. 5. FAN1585A-1.8 only.


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