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AMC887-2.8DBT Datasheet(PDF) 3 Page - ADDtek Corp |
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AMC887-2.8DBT Datasheet(HTML) 3 Page - ADDtek Corp |
3 / 9 page AMC8878/8879 Copyright © 2006 ADDtek Corp. 3 DD067_G -- JUNE 2006 BLOCK DIAGRAM PIN DESCRIPTION Pin Number AMC8878 AMC8879 Pin Name Pin Function 1 5 VIN Input 2 2 GND Ground 3 1 SHDN Logic control shutdown pin; HI: Device is ON, LO: Device is OFF 4 3 BP Noise bypass pin; The output noise level can be reduced to 30 µVRMS by connecting external capacitors 5 4 VOUT Output RECOMMENDED OPERATING CONDITIONS Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Units Input Voltage VIN 2.5 6.5 V Load Current I O 5 150 mA Input Capacitor (VIN to GND) 1.0 µF Output Capacitor with ESR of 10 Ω max., (VOUT to GND) 1.0 µF Note: 1. CIN: A 1.0 µF capacitor (or larger) should be placed between VIN to GND. 2. COUT: A 1.0 µF (or larger) capacitor is recommended between VOUT and GND for stability and improving the regulator’s transient response. The ESR (Effective Series Resistance.) of this capacitor has no effect on regulator stability, but low ESR capacitors improve high frequency transient response. The value of this capacitor may be increased without limit, but values larger than 10uF tend to increase the settling time after a step change in input voltage or output current. The part may oscillate without the capacitor. Any type of capacitor can be used, but not Aluminum electrolytics when operating below -25 OC, The capacitance may be increased without limit. Thermal Sensor VREF Shutdown And Power-On Control Reverse Battery Protection Current Limit VIN SHDN GND VOUT BP |
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