TECHNICAL DATA 500mA Low Dropout Linear Voltage Regulator IL233-xx Features ♦ Guaranteed 500 mA output current ♦ Line Regulation typically at 0.2% max ♦ Load Regulation typically at 0.4% max ♦ Current Limiting and Thermal Protection ♦ Three-terminal Adjustable Output Voltage 1.25V or Fixed 1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5V ♦ Input voltage range up to 15V ♦ Dropout voltage 1.2v (Typ.) General Description The IL233 is a series of low dropout voltage regulators which can provide 500mA of output current. The IL233 is available in seven fixed voltage,,1.25, 1.5, 1.8, 2.5, 2.85, 3.3 and 5.0V. Additionally it is also available in adjustable version. It includes output current-limiting and thermal-limiting curcuit The IL233 series is available in TO-92 , SOT-89, SOT-223 packages. Applications Post Regulator for switching DC/DC Converter High Efficiency Linear Regulator ● Battery Chargers ● Wireless communication systems ● ● Pin Assignment Pin NO. 1 2 3 Funtion GND Output Input Absolute Maximum Ratings Parameter Input Voltage Vin Operating Junction Temperature Range Min. -25 Typ. Max. Unit 15 125 V °C 1 IL233-x Electrical Characteristics At Tj= +25°C, unless otherwise noted. PARAMETER CONDITIONS OUTPUT VOLTAGE Tj = -25°C to +125°C IL 233 (Adjustable) IL 233 -1.5 IL 233 -1.8 IL 233 -2.5 IL 233 -2.85 IL 233 -3.3 IL 233 -5.0 LINE REGULATION Tj = -25°C to +125°C IL 233 (Adjustable) IL 233 -1.5 IL 233 -1.8 IL 233 -2.5 IL 233 -2.85 IL 233 -3.3 IL 233 -5.0 LOAD REGULATION (1) IL 233 (Adjustable) IL 233 -1.5 IL 233 -1.8 IL 233 -2.5 IL 233 -2.85 IL 233 -3.3 IL 233 -5.0 MIN TYP Io = 10mA to 0.5A, Vin = 2.8V to 12V 1.225 1.250 1.275 Io = 10mA to 0.5A, Vin = 3.0V to 12V 1.470 1.500 1.530 Io = 10mA to 0.5A, Vin = 3.3V to 12V 1.764 1.800 1.836 Io = 10mA to 0.5A, Vin = 4.0V to 12V 2.450 2.500 2.550 Io = 10mA to 0.5A, Vin = 4.4V to 12V 2.790 2.850 2.910 Io = 10mA to 0.5A, Vin = 4.8V to 12V 3.235 3.300 3.365 Io = 10mA to 0.5A, Vin = 6.5V to 15V 4.900 5.000 5.100 Io = 10mA, Vin = 2.8V to 12V - - 0.2 % Io = 10mA, Vin = 3.0V to 12V - - 7 mV Io = 10mA, Vin = 3.3V to 12V - - 7 mV Io = 10mA, Vin = 4.0V to 12V - - 7 mV OUTPUT CRRENT UNITS V Io = 10mA, Vin = 4.4V to 12V - - 7 mV Io = 10mA, Vin = 4.8V to 12V - - 7 mV Io = 10mA, Vin = 6.5V to 15V - - 10 mV Io = 10mA to 0.5A, Vin = 2.8V - - 0.4 % Io = 10mA to 0.5A, Vin = 3.0V - - 10 mV Io = 10mA to 0.5A, Vin = 3.3V - - 10 mV Io = 10mA to 0.5A, Vin = 4.0V - - 10 mV Io = 10mA to 0.5A, Vin = 4.4V - - 10 mV Io = 10mA to 0.5A, Vin = 4.8V - - 10 mV Io = 10mA to 0.5A, Vin = 6.5V - - 15 mV 1.2 1.30 1.2 1.5 Tj = -25°C to +125°C DROPOUT VOLTAGE(2) All Models MAX Io=0.5A Io=0.5A (Tj = -25°C to +125°C.) Vin -Vo = 5V 500 V mA MINIMUMLOAD CURRENT 10 mA 5.2 10 mA Io = 10mA, Vin = 1.4 to 10V 50 120 uA Vs Load Current, IL 233 Io = 10mA to 0.5A, Vin = 1.4 to 10V 0.5 5 uA TEMPERATURE DRIFT Tj= -25°C to +125°C 0.5 Adjustable Models Vin = 13.5V QUIESCENT CURRENT Vin = 5V Adjust Pin Current % NOTES: (1) IL 233 adjustable versions require a minimum load current for ±3% regulation. (2) The dropout voltage is the input/output differential at which the circuit ceases to regulate against further reduction in input voltage. It is measured when the output voltage has dropped 100 mV from the nominal value obtained at Vin=Vout+1.5V. 2 IL233-x Block Diagram Application Information FIGURE 1. Fixed-Voltage Model —Basic Connections. FIGURE 2. Adjustable-Voltage Model —Basic Connections. 3 IL233-x 4 IL233-x 5 IL233-x 6