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MAX1982EUT-T Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX1982EUT-T Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 13 page Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply _______________________________________________________________________________________ 3 ELECTRICAL CHARACTERISTICS (continued) (Circuit of Figure 3, VIN = 1.8V, ILOAD = 1mA, CLOAD = 10µF, TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1) ELECTRICAL CHARACTERISTICS (Circuit of Figure 3, VIN = 1.8V, ILOAD = 1mA, CLOAD = 10µF, TA = -40°C to +85°C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LOGIC AND I/O SHDN Input High Voltage VIH 2.4 V SHDN Input Low Voltage VIL 0.8 V SHDN Input Current -1 +1 µA PGOOD Output Low Voltage PGOOD sinking 1mA 0.1 V PGOOD Output High Leakage Current 0 < VPGOOD < VIN -1 +1 µA DYNAMICS Positive Load Step tRISE ILOAD = 1mA to full load, CLOAD = 10µF 10 µs Negative Load Step tFALL ILOAD = full load to 1mA, CLOAD = 10µF 50 µs Ripple Rejection at VIN 10Hz < f < 10kHz, ILOAD = 300mA, CLOAD = 10µF -60 dB Startup Response Time tON ILOAD = 300mA, CLOAD = 10µF, 0% to 90% of nominal output voltage 100 µs Startup Overshoot ILOAD = 300mA, CLOAD = 10µF 0.5 % Falling edge, 3mV under trip threshold 10 µs PGOOD Propagation Delay tPD Rising edge within 5% of regulation level 1 4 ms PARAMETER SYMBOL CONDITIONS MIN MAX UNITS Input Voltage VIN 1.25 5.5 V BIAS Voltage VBIAS 4.5 5.5 V VOUT Voltage Range VOUT MAX1983 0.8 2.0 V BIAS Input Undervoltage Lockout 3.8 4.2 V Shutdown Supply Current IIN 1.25V < VIN < 5.5V 5 µA Quiescent BIAS Current IQ 4.5V < VBIAS < 5.5V 250 µA Shutdown BIAS Current ISHDN 4.5V < VBIAS < 5.5V 5 µA MAX1982: VIN = open, VOUT = 1.20V 30 VOUT Input Bias Current MAX1983: VIN = open, 0.8V < VOUT < 2.0V 2 µA REGULATOR CHARACTERISTICS Line Regulation ΔVOUT/ ΔVIN ILOAD = 10mA, 1.5V < VIN < 5.5V -0.15 +0.15 %/V MAX1982 1.20V Output Voltage Accuracy VOUT IOUT = 1mA to 300mA, VOUT + 0.5V < VIN < 5.5V -3 +3 % |
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