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ACT2102SH-T Datasheet(PDF) 2 Page - Active-Semi, Inc |
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ACT2102SH-T Datasheet(HTML) 2 Page - Active-Semi, Inc |
2 / 17 page ACT2102 Rev 2, 23-May-12 ® Innovative PowerTM - 2 - www.active-semi.com Copyright © 2012 Active-Semi, Inc. ORDERING INFORMATION PART NUMBER OPERATION TEMPERATURE RANGE PACKAGE PINS PACKING ACT2102SH-T -40°C to 85°C SOP-8 8 TAPE & REEL PIN CONFIGURATION PIN DESCRIPTIONS PIN NAME DESCRIPTION 1 HSB High-Side Bias Input. This pin acts as the positive rail for the high-side switch's gate driver. Connect a 10nF or greater capacitor between HSB and SW pins. 2 IN Input Supply. Bypass this pin to GND with a low ESR capacitor. Drive IN with a 4.5V to 18V power source. See Input Capacitor in the Application Information section. 3 SW Switch Output. Connect this pin to the switching end of the external inductor. Note that a capacitor is required from SW to HSB to power the high-side switch. 4 GND Ground. 5 FB Feedback Input. FB senses the output voltage to regulate that voltage. Drive FB with a resistive voltage divider from the output voltage. The feedback threshold is 0.923V. See Setting the Output Voltage. 6 COMP Compensation Node. COMP is used to compensate the regulation control loop. See Compensation Components. 7 EN Enable Input. When higher than 2.5V, this pin turns the IC on. When lower than 2.3V, this pin turns IC off. When left unconnected, EN is pulled up to logic HIGH with a 2µA pull-up current. EN is a digital input that turns the regulator on or off. 8 N/C Not connected. |
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