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MIC2951-4.8BM Datasheet(PDF) 2 Page - Micrel Semiconductor |
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MIC2951-4.8BM Datasheet(HTML) 2 Page - Micrel Semiconductor |
2 / 14 page MIC2950/2951 Micrel 3-50 February 1999 Pin Description Pin # Pin # Pin Name Pin Function MIC2950 MIC2951 3 1 OUT Regulated Output 2 SNS Sense (Input): Output-voltage sensing end of internal voltage divider for fixed 5V operation. Not used in adjustable configuration. 3 SHDN Shutdown/Enable (Input): TTL compatible input. High = shutdown, low or open = enable. 2 4 GND Ground 5 ERR Error Flag (Output): Active low, open-collector output (low = error, floating = normal). 6 TAP 3.3V/4.85/5V Tap: Output of internal voltage divider when the regulator is configured for fixed operation. Not used in adjustable configuration. 7 FB Feedback (Input): 1.235V feedback from internal voltage divider’s TAP (for fixed operation) or external resistor network (adjustable configuration). 1 8 IN Unregulated Supply Input Pin Configuration 1 2 3 4 8 7 6 5 IN FB TAP ERR OUT SNS SHDN GND MIC2951-xx DIP (N), SOIC (M), MM8™ (MM) (Top View) 32 1 OUT GND IN MIC2950-xx TO-92 (Z) (Bottom View) Ordering Information Part Number Voltage Accuracy Temperature Range* Package MIC2950-05BZ 5.0V 0.5% –40 °C to +125°C TO-92 MIC2950-06BZ 5.0V 1.0% –40 °C to +125°C TO-92 MIC2951-02BM 5.0V 0.5% –40 °C to +125°C 8-pin SOIC MIC2951-03BM 5.0V 1.0% –40 °C to +125°C 8-pin SOIC MIC2951-02BN 5.0V 0.5% –40 °C to +125°C 8-pin plastic DIP MIC2951-03BN 5.0V 1.0% –40 °C to +125°C 8-pin plastic DIP MIC2951-03BMM 5.0V 1.0% –40 °C to +125°C 8-lead MM8™ MIC2951-3.3BM 3.3V 1.0% –40 °C to +125°C 8-pin SOIC MIC2951-4.8BM 4.85V 1.0% –40 °C to +125°C 8-pin SOIC * junction temperature The MIC2950 is available as either an -05 or -06 version. The -05 and -06 versions are guaranteed for junction temperatures from –40 °C to +125°C; the -05 version has a tighter output and reference voltage specification range over temperature. The MIC2951 is available as an -02 or -03 version. The MIC2950 and MIC2951 have a tight initial tolerance (0.5% typical), a very low output voltage temperature coefficient which allows use as a low-power voltage reference, and extremely good load and line regulation (0.04% typical). This greatly reduces the error in the overall circuit, and is the result of careful design techniques and process control. |
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