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AIC1730-30CV Datasheet(PDF) 9 Page - Analog Intergrations Corporation |
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AIC1730-30CV Datasheet(HTML) 9 Page - Analog Intergrations Corporation |
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9 / 12 page  AIC1730 9 LINE REGULATION Line regulation is the ability of the regulator to maintain a constant output voltage as the input voltage changes. The line regulation is specified as the input voltage is changed from VIN = VOUT + 1 V to VIN = VOUT + 6 V and IOUT = 1mA. LOAD REGULATION Load regulation is the ability of the regulator to maintain a constant output voltage as the load current changes. To minimize temperature effects, it is a pulsed measurement with the input voltage set to VIN = VOUT + 1 V. The load regulation is specified under the output current step of 0.1mA to 150mA. QUIESCENT CURRENT (I Q) The quiescent current is the current flowing through the ground pin under no load. GROUND CURRENT (I GND) Ground current is the current flowing through the ground pin under loading. STANDBY CURRENT (I STBY) Standby current is the current flowing into the regulator when the output is shutdown by setting V SHDN = 0V, VIN = 8 V. CURRENT LIMIT (I IL) The AIC1730 include a current limiter, which monitors and controls the maximum output current to be 300mA typically if the output is shorted to ground. This can protect the device from being damaged. THERMAL PROTECTION The thermal sensor protects the device when the junction temperature exceeds TJ= +155ºC. It signals the shutdown logic, turning off the pass transistor and allowing the IC to cool. After the IC’s junction temperature cools by 15ºC, the thermal sensor will turn on the pass transistor again. Thermal protection is designed to protect the device in the event of fault conditions. For continuous operation do not exceed the absolute maximum junction-temperature rating of TJ= 150ºC, or damage may occur to the device. n APPLICATION INFORMATION INPUT-OUTPUT CAPACITORS Linear regulators require input and output capacitors to maintain stability. The recommended minimum value of input capacitor is 0.22 µF. The output capacitor should be selected within the Equivalent Series Resistance (ESR) range shown in the graphs below for stability. Because the ceramic capacitor’s ESR is lower and its electrical characteristics (capacitance and ESR) vary widely over temperature, a tantalum output capacitor is recommended, especially for heavier load. In general, the capacitor should be at least 1 µF(tantalum) and be rated for the actual ambient operating temperature range. Note: It is very important to check the selected manufactures’ electrical characteristics (capacitance and ESR) over temperature. |
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