SPX2733T

SPX2730/31/32/33 3A High Current Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response (ADVANCED INFORMATION) FEATURES • Adjustable Output Down To 1.2V • 1% output accuracy @ 3.3V, 5.0V • Output Current of 3A • Low Dropout Voltage 370mV(Typ.) @ 3A. • Extremely Tight Load And Line Regulation • Extremely Fast Transient Response • Standard 3-Terminal Low Cost TO-220, TO-263 • Reverse-battery and “Load Dump” Protection • Zero Current Shutdown Mode (5-Pin Versions) • Error Flag Signal Output Out-of Regulation (5-Pin Versions) APPLICATIONS • Powering VGA & Sound Card • Power PCSupplies • SMPS Post-Regulator • High Efficiency “Green” Computer Systems • High Efficiency Linear Power Supplies • Portable Instrumentation • Constant Current Regulators • Adjustable Power Supplies • Battery charger PRODUCT DESCRIPTION The SPX2730/31/32/33 is a 3A high accuracy, low dropout voltage regulator (370mV(Typ)@ 3A). The SPX2730/31/32/33 is designed for low voltage application that requires lower dropout voltage and faster transient response. This device is an excellent choice for use in powering low voltage microprocessor that require a lower dropout, faster transient response to regulate from +2.5V to 3.8V supplies and as a post regulator for switching supplies applications. The SPX2730/31/32/33 offers full protection against over-current faults, reversed input polarity, reversed load insertion, and positive and negative transient voltage. On-Chip trimming adjusts the reference voltage to 1%. Features such as enable pin, Error flag pin are also included in the 5-pin package. The SPX2730/31/32/33 are offered in 3 & 5 pin TO-220 & TO-263 packages compatible with other 3 terminal regulators. PIN CONNECTIONS TO-220-3 (U) TO-263-3 (T) TO-263-5 (T) SPX2731 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) FLAG TO-220-5 (U) SPX2730 1 2 3 SPX2731/32/33 SPX2732 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) ADJUST SPX2733 1) FLAG 2) INPUT 3) GND 4) OUTPUT 5) ADJUST SPX2730 1 2 3 SPX2731/32/33 SPX2731 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) FLAG SPX2732 1) ENABLE 2) INPUT 3) GND 4) OUTPUT 5) ADJUST SPX2733 1) FLAG 2) INPUT 3) GND 4) OUTPUT 5) ADJUST 12345 1 2 3 45 Top View Top View Front View Front View Rev. 12/7/00 SPX2730/31/32/33 ABSOLUTE MAXIMUM RATINGS Lead Temp. (Soldering, 5 Seconds) ................................ 260°C Storage Temperature Range ...................................................... -65° to +150°C Maximum Input Voltage ...................................... 16V Operating Junction Temperature Range SPX2730/31/32/33 Control Section ................................ -45°C +125°C SPX2730/31/32/33 Power Transistor............................... -45°C +150°C ELECTRICAL CHARACTERISTICS (NOTE 1) at IOUT = 10mA, Ta=25°C, unless otherwise specified. SPX2730/31/32/33 PARAMETER CONDITIONS Typ Min Max 3.3V Version Units V Output Voltage (Note 2) 5.0V Version IOUT = 10mA 10mA ≤IOUT≤ 3A, 4.75V≤VIN ≤16V IOUT = 10mA 10mA ≤IOUT≤ 3A, 5.5V≤VIN ≤16V 3.3 3.3 5.0 5.0 1.240 3.270 3.240 4.95 4.90 1.228 1.215 1.203 3.330 3.360 5.05 5.10 1.252 1.265 1.277 0.5 1 100 175 Output Voltage (Note 2) All Voltage Options V Reference Voltage Reference Voltage Line Regulation Load Regulation ∆V ∆T Dropout Voltage (Note 8)` IO = 10mA, (VOUT + 1V) ≤ VIN≤ 16V VIN = VOUT + 5V, 10mA ≤ IOUT≤ IFULLLOAD (Note 2, 6) Output Voltage (Note 6) Temperature Coef. V V % % ppm/°C mV 0.06 0.2 20 80 250 370 10 37 0.9 4.5 400 260 40 3.0 IO = 100mA IO = 1.5A IO = 3 A 600 35 mA mA A V RMS Ground Current IGNDDO Ground Pin Current at Dropout Current Limit Output Noise Voltage (10Hz to 100kHz) IL = 100mA Adjust Pin Bias Current Reference Voltage Temperature Coefficient Adjust Pin Bias Current Temperature Coefficient Output Leakage Current Output Low Voltage IO = 1.5A, VIN = VOUT, +1V IO = 3 A VIN = 0.5V less than specified VOUT IOUT = 10mA VOUT = 0V (Note 4) CL = 10µF CL = 33µF 80 120 nA ppm/°C (Note 7) 20 0.1 nA/°C Flag Output (Error Comparator) SPX2731/SPX2733 VOH = 16V Device set for 5V. VIN = 4.5V IOL = 250µA 0.01 220 1.00 2.00 300 400 µA mV Rev. 12/7/00 SPX2730/31/32/33 (Cont.) Upper Threshold Voltage Lower Threshold Voltage Hysteresis ENABLE Input SPX2731/SPX2732 Input Logic Voltage Low (OFF) High (ON) Enable Pin Input Current Regulator Output Current in Shutdown Device set for 5V (Note 9) Device set for 5V (Note 9) Device set for 5V (Note 9) 60 75 15 40 25 95 140 mV mV mV 0.8 2.4 VEN = 16V VEN = 0.8V (Note 10) 10 500 100 600 750 1 2 V V µA µA Notes: The Bold specifications apply to the full operating temperature range. Note 1: Maximum positive supply voltage of 60V must be of limited duration (