SPX2955 Sipexoration, SPX2955 Datasheet
SPX2955
Related parts for SPX2955
SPX2955 Summary of contents
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... Output Programmable From 1.24V to 29V PRODUCT DESCRIPTION The SPX2955/56/ low power voltage regulator. This device is an excellent choice for use in battery-powered applications such as cordless telephones, radio control systems, and portable computers. The SPX2955/56/57 features very low quiescent current (100µA Typ.) and very low dropout voltage. This includes a tight initial tolerance of 1% max and 2% max., and very low output temperature coefficient, making the SPX2955/56/57 useful as a low-power voltage reference ...
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... ABSOLUTE MAXIMUM RATINGS Power Dissipation..........................................Internally Limited Lead Temp. (Soldering, 5 Seconds) ................................ 260°C Storage Temperature Range .............................. -65° to +150°C Operating Junction Temperature Range (Note 9) SPX2955/56/57...................................... -40C° to +125°C ELECTRICAL CHARACTERISTICS operating temperature range. PARAMETER 3.3V Version Output Voltage 5V Version Output Voltage ...
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... Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. Note 4: Line regulation for the SPX2955/56/57 is tested at 150°C for I typical performance characteristics for line regulation versus temperature and load current. ...
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... UNREGULATED FEEDBACK 3 FROM CMOS OR TTL SHUTDOWN SPX2955/56/57 Block Diagram 1 8 INPUT OUTPUT 2 SENSE Ω 180k .. + 6 _ ERROR AMPLIFIER 5V TAP Ω 60k .. ______ ERROR _ ERROR DETECTION 1.23V COMPARATOR 4 REFERENCE GROUND SPX2955/56/ 350mA MAX Ω 330k .. + µ CMOS OR TTL Rev. 11/21/00 ...
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... Figure 1 shows the timing diagram depicting the ERROR signal and the regulator output voltage as the SPX2955/56/57 input is ramped up and down. The ERROR signal becomes low at around 1.3V input, and goes high around 5V input (input voltage at which Vout = 4.75). Since the SPX2955/56/57’ ...
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... R accuracy choose the value 100k this reduces the error by 0.17% and increases the resistor program current by 12µA. Since the SPX2955/56/57 typically draws 60 µ load with Pin 2 open-circuited this is a small price to pay HEAT SINK REQUIREMENTS ...
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... ERROR SPX2955/ GND 7 4 *MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 4mV TO 400mV. DEPENDING ON LOAD CURRENT. CURRENT LIMIT IS TYPICALLY 160mA Wide Input Voltage Range Current + OUT SPX2955 GND 4 SPX2955 FIXED +5V REGULATOR SPX2955/56/ OUT IN V OUT OUT + 10uF Rev. 11/21/00 ...
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... SPX2955U5 2% SPX2955U5-3.3 SPX2955U5-5 SPX2955AU5 1% SPX2955AU5-3.3 1% SPX2955AU5-5.0 SPX2955T3 2% 2% SPX2955T3-3.3 2% SPX2955T3-5.0 SPX2955AT3 1% SPX2955AT3-3 SPX2955AT3-5.0 2% SPX2955T5 SPX2955T5-3 SPX2955T5-5.0 1% SPX2955AT5 SPX2955AT5-3.3 1% SPX2955AT5-5 SPX2955S 2% SPX2955S-3.3 SPX2955S-5 SPX2955AS 1% SPX2955AS-3.3 SPX2955AS-5.0 1% SPX2955AS-3 SPX2955AS-5.0 2% SPX2956U3-3.3 SPX2956U3-5 SPX2956AU3-3.3 1% SPX2956AU3-5.0 SPX2956U5-3.3 2% SPX2956U5-5 SPX2956AU5-3 ...
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... Adj 2% Adj 1% Adj 2% Adj 1% Adj 2% Adj 1% Adj 2% Adj 1% Adj SPX2955/56/57 Packages 3 Lead TO-263 3 Lead TO-263 5 Lead TO-263 5 Lead TO-263 5 Lead TO-263 5 Lead TO-263 8 Lead SOIC 8 Lead SOIC 3 Lead TO-220 3 Lead TO-220 5 Lead TO-220 5 Lead TO-220 3 Lead TO-263 3 Lead TO-263 5 Lead TO-263 ...