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SPX2954N-3-3 Datasheet(PDF) 10 Page - Sipex Corporation |
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SPX2954N-3-3 Datasheet(HTML) 10 Page - Sipex Corporation |
10 / 17 page Date: 12/9/05 SPX2954, 250mA Low Dropout Voltage Regulator © Copyright 2005 Sipex Corporation 10 APPLICATIONS HINTS 100kΩ SENSE SD V OUT GND +V IN 3 8 1 1µF + 4 400kΩ 120kΩ 1.5kΩ 6V SEALED LEAD- ACID BATTERY SOURCE FB FOR 5.5 V + 1N457 2 20kΩ NI-CAD BACKUP BATTERY MEMORY V+ MAIN V+ SPX385 SPX2954 Figure 4. Low Battery Disconnect Figure 5. Regulator with State of Charge Indicator GND 4 3 5 8 2 1 7 6 S D TAP FB +VIN SENS E VOUT ERROR ______ RESET 100kΩ 1kΩ 100kΩ 10kΩ 20kΩ 1kΩ 39kΩ 39kΩ C3 C1 C2 C4 1% 1% 1% 1% 6V LEAD- ACID BATTERY R3 <6.2V** <5.8V** <6.0V** - + + + + - - - +V O UT = 5V 1uF + * OPTIONAL LATCH OFF WHEN DRO POUT OCCURS. ADJUST R3 FOR C2 SWITCHING WHEN V IN IS 6.0V * OUTPUTS GO LOW WHEN V IN DRO PS BELOW DESGNATED THRESHHOLDS SPX2954 100k Ω 100kΩ |
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