spx1580 Exar Corporation, spx1580 Datasheet
spx1580
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spx1580 Summary of contents
Page 1
... This device is an excellent choice for the use of powering low voltage microprocessors that require a lower dropout, fast transient response to regulate from 3.3V and 5V supplies. The SPX1580 is also an excellent choice as a post regulator for switching supplies applications. ...
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... Power Dissipation ..................................... Internally Limited Lead Temp. (Soldering, 10 Seconds) ......................... 300°C Storage Temperature Range ..................... -65°C to +150°C Operating Junction Temperature Range SPX1580 Control Section ............................. 0°C to +125°C SPX1580 Power Transistor .......................... 0°C to +150°C Electrical characteristics OUT SENSE The ♦ denotes the specifications which apply over the -40°C to 85°C temperature range, unless otherwise specified. ...
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... APPLICATION INFORMATION A typical application would use 3.3V for V and 5.0V for V supply to provide a nominal 2.5V output. Using the sense pin allows Kelvin measure the output, reducing resistance-associated errors. CTRL The SPX1580 can power the 2.5V core voltage for microprocessors such as a PentiumPC P55C , AMD5k86 TM PowerPC TM ...
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... Output Capacitor An output capacitor for SPX1580 is for circuit compensation for the device to prevent oscilliation. The minimum size of the output capacitor is either a 330µF aluminum electro- lytic capacitor or 33uF tantalum. Larger capaci- tor values improve the regulator transient re- sponse performance and increase surge load capability. The output capacitor should have an ESR not more than 0.3Ω ...
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... V 3. CTRL C1 33µF Figure 2. Typical Fixed Regulator. Date: 5/16/ OUT 5 3 SPX1580 CTRL SENSE GND C2 10µF (1) V needed when V CTRL IN SPX1580 7A Ultra Dropout Voltage Regulator 5 2.5V V OUT C3 68µF < 5V. ©Copyright 2004 Sipex Corporation ...
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... F H1 .234 - .258 .090 - .115 J1 L .540 - .560 L1 - .250 ∆P .146 - .156 Q .103 - .113 .24 Date: 5/16/04 ø SPX1580 7A Ultra Dropout Voltage Regulator 6 PACKAGE: 5 PIN TO-220 A B SEATING PLANE CHAMFER OPTIONAL PIN TO-220 ©Copyright 2004 Sipex Corporation ...
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... .190 .010 .039 .029 0º-8º - .023 - - L3 .420 - .625 .110 .066 .070 SPX1580 7A Ultra Dropout Voltage Regulator 7 PACKAGE: 5 PIN TO-263 SEATING PLANE ( (b) WITH PLATING c BASE METAL CONTACT AREA 5 PIN TO-263 ©Copyright 2004 Sipex Corporation ...
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... SPX1580T5 ................................................ -40°C to +85°C ........................................................ 5 Pin TO-263 SPX1580T5/TR .......................................... -40°C to +85°C ........................................................ 5 Pin TO-263 SPX1580T5-2.5 .......................................... -40°C to +85°C ....................................................... 5 Pin TO-263 SPX1580T5-2.5/TR .................................... -40°C to +85°C ....................................................... 5 Pin TO-263 SPX1580T5-3.3 .......................................... -40°C to +85°C ....................................................... 5 Pin TO-263 SPX1580T5-3.3/TR .................................... -40°C to +85°C ....................................................... 5 Pin TO-263 Available in lead free packaging. To order add "-L" suffix to part number. ...