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SC1540CS-2.5 Datasheet(PDF) 2 Page - Semtech Corporation |
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SC1540CS-2.5 Datasheet(HTML) 2 Page - Semtech Corporation |
2 / 4 page SC1540 SC1540A © 2000 SEMTECH CORP. 300mA AND 500mA LOW DROPOUT VOLTAGE REGULATORS WITH ENABLE PRELIMINARY - May 1, 2000 652 MITCHELL ROAD NEWBURY PARK CA 91320 2 NOTES: (1) Low duty cycle pulse testing with Kelvin connections required. (2) ∆V OUT, ∆ VREF = 1% (3) Bandwidth of 10 Hz to 10kHz. (4) 120Hz input ripple. ELECTRICAL CHARACTERISTICS Unless otherwise specified: I O = 0mA to 300mA (500mA for SC1540A), EN = VIN 1.5V Option: VIN = 2.9V to 7.0V 2.5 Option: VIN = 3.9V to 7.0V 3.3V Option: VIN = 4.7V to 7.0V Values in bold apply over full operating temperature range. Test Conditions Test Limits Parameter Symbol Min Typ Max Units Output Voltage (1) VO VIN = 5V, I O = 0mA 0.99|VO| VO 1.01|VO| V 0.98|VO| VO 1.02|VO| Line Regulation (1) REG (LINE) I O = 10mA 0.035 0.2 % Load Regulation (1) REG (LOAD) VIN = 5V 0.2 0.4 % Dropout Voltage (1)(2) SC1540 SC1540A V D I O = 300mA I O = 500mA 1.10 1.30 V Current Limit (1) SC1540 SC1540A I CL 330 550 mA Quiescent Current I Q VIN = 5V, EN = VIN 5 7 mA 10 VIN = 5V, EN < 0.25V 6 8 µA 10 Enable Pin Control Voltage EN Device OFF 0.25 0.45 V Device ON (VO+0.5) (VO+0.8) Enable Pin Current I EN EN = 0V, VIN = 5V (OFF) 0.1 1.0 µA EN = VIN = 5V (ON) 15 25 Temperature Coefficient T C 0.005 %/°C Temperature Stability T S 0.5 % RMS Output Noise (3) V N 0.003 %V O Ripple Rejection Ratio (4) R A VIN = 5V 60 72 dB |
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