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SC1565IST-2.5TR Datasheet(PDF) 4 Page - Semtech Corporation |
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SC1565IST-2.5TR Datasheet(HTML) 4 Page - Semtech Corporation |
4 / 10 page © 2000 SEMTECH CORP. 652 MITCHELL ROAD NEWBURY PARK CA 91320 VERY LOW DROPOUT 1.5 AMP REGULATOR WITH ENABLE SC1565 October 3, 2000 4 PIN DESCRIPTIONS Pin Name Pin Functiom ADJ This pin, when grounded, sets the output voltage to that set by the internal feedback resistors. If ex- ternal feedback resistors are used, the output voltage will be (See Application Circuit): EN Enable Input. Pulling this pin below 0.4V turns the regulator off, reducing the quiescent current to a fraction of its operating value. The device will be enabled if this pin is left open. Connect to VIN if not being used. GND Reference ground. Use all four pins on the SO-8 device for heatsinking. Use the tab on the TO-220 devices for heatsinking. VIN Input voltage. For regulation at full load, the input to this pin must be between (VO + 0.7V) and 5.5V. Minimum VIN = 2.2V. VO This pin is the power output of the device. Volts R2 R2) (R1 1.200 VO + = * * BLOCK DIAGRAM * Not on 3-lead TO-220 |
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