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UPD12115 Datasheet(PDF) 3 Page - NEC |
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UPD12115 Datasheet(HTML) 3 Page - NEC |
3 / 10 page Data Sheet G18851EJ1V0DS 3 μ PD12115 CIN : 0.1 μ F or higher. Be sure to connect CIN to prevent parasitic oscillation. Set this value according to the length of the line between the regulator and the INPUT pin. Use of a film capacitor or other capacitor with first-rate voltage and temperature characteristics is recommended. If using a laminated ceramic capacitor, it is necessary to ensure that CIN is 0.1 μ F or higher for the voltage and temperature range to be used. COUT: 10 μ F or higher. Be sure to connect COUT to prevent oscillation and improve excessive load regulation. Place CIN and COUT as close as possible to the IC pins (within 1 to 2 cm). Also, in case of using a laminated ceramic capacitor, please note following items. • It is necessary to ensure that COUT is 10 μ F or higher for the voltage and temperature range to be used. • In case of using laminated ceramic capacitor, it is easy to become state of parasitic oscillation. Because ESR of laminated ceramic capacitor is very low. Therefore, the capacitor and load condition (output current) which fulfill the condition of the stable operation area of ESR shown below are recommended. • Stable Operation Area as below is regulated under condition of which this product is not on a substrate. Therefore impedance on substrate is not considered. D1 : If the OUTPUT pin has a higher voltage than the INPUT pin, connect a diode. D2 : If the OUTPUT pin has a lower voltage than the GND pin, connect a Schottky barrier diode. Caution Make sure that no external voltage is applied to the OUTPUT pin. μ PD12115 COUT ESR Stable Operation Area 10 1 0.1 0.01 0 200 400 600 800 1000 IO (mA) Unstable Operation Area Unstable Operation Area Stable Operation Area RECOMMENDED OPERATING CONDITIONS Parameter Symbol MIN. TYP. MAX. Unit Input Voltage VIN 2.5 5.5 V ON/OFF Pin Voltage VON/OFF 0 VIN V Output Current IO 0 1.0 A Operating Ambient Temperature TA − 40 + 85 °C Operating Junction Temperature TJ − 40 + 125 °C Caution1. Turn on VIN and VON/OFF at the same time, or turn on VIN first and then VON/OFF. Turn off VIN and VON/OFF at the same time, or turn off VON/OFF first and then VIN. 2. If absolute maximum rating is not exceeded, you can used this product above the recommended operating range. However, since a margin with absolute maximum rating decreases, please use this product after sufficient evaluation. |
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Similar Description - UPD12115 |
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