SPX29501T5-L-3-3/TR

® SPX29501/02 P 5A Low Dropout Voltage Regulator November 2008 Rev. B 5 A FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ Adjustable Output Down to 1.25V 1% Output Accuracy Output Current of 5A Low Dropout Voltage: 420mV @ 5A Tight Line Regulation: 0.06% Load Regulation: 0.2% Fast Transient Response Reverse-Battery Protection Current Limit and Thermal Protection SPX29502 SP29500 5 Pin TO-263 3 Pin TO-220 1 2 3 1 2 3 ■ ■ ■ ■ ADJUST GND OUTPUT Powering VGA & Sound Card Power PC™ Supplies SMPS Post Regulator High Efficiency “Green” Computer Systems High Efficiency Linear Power Supplies Constant Current Regulators Adjustable Power Supplies Battery Charger EN ■ ■ ■ ■ INPUT APPLICATIONS VIN GND VOUT Now Available in Lead Free Packaging DESCRIPTION The SPX29501/02 are 5A highly accurate voltage regulators with a low dropout voltage of 420mV @ 5A. These regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. They are fully fault protected against over-current, reverse battery, and positive and negative voltage transients. On-Chip trimming adjusts the reference voltage to 1% initial accuracy. Other features include Enable, and Error Flag. The SPX295001/02 are offered in 5-pin TO-220 & TO-263 packages. For a 1.5A version, refer to the SPX29150 data sheet. For a 3A version, refer to the SPX29300 datasheet. TYPICAL APPLICATION CIRCUITS 1 SPX29500 3 VIN 6.8µF + 2 VOUT + 22µF 1 SPX29502 V IN 6.8µF + 2 GND 3 4 5 ADJ V OUT + R1 22µF R2 Figure 1. Fixed Output Linear Regulator Exar Corporation 48720 Kato Road, Fremont CA 94538, USA Figure 2. Adjustable Output Linear Regulator www.exar.com Tel. +1 510 668-7000 – Fax. +1 510 668-7001 ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS Lead Temperature (soldering, 5 seconds) ................260°C Storage Temperature Range........................-65°C to +150°C Operating Junction Temperature Range......-40°C to +125°C Input Voltage (Note 1) .................................................... 20V Input Voltage ................................................................... 16V ELECTRICAL CHARACTERISTICS Specifications are at VIN = VOUT + 1V and IOUT = 10mA, CIN = 6.8µF, COUT = 22µF, TA = 25°C, unless otherwise specified. The ♦ denotes the specifications which apply over the full operating temperature range, unless otherwise specified. PARAMETER MIN Fixed Voltage Options TYP MAX UNITS CONDITIONS SPX29501 1.8V Version Output Voltage 1.782 1.764 1.800 1.800 1.818 1.836 V IOUT = 10mA ♦ 10mA ≤ IOUT ≤ 5A, 2.8V ≤ VIN ≤ 16V 2.475 2.450 2.500 2.500 2.525 2.550 V IOUT = 10mA ♦ 10mA ≤ IOUT ≤ 5A, 3.5V ≤ VIN ≤ 16V 3.267 3.234 3.300 3.300 3.333 3.366 V IOUT = 10mA ♦ 10mA ≤ IOUT ≤ 5A, 4.3V ≤ VIN ≤ 16V 4.950 4.900 5.000 5.000 5.050 5.100 V IOUT = 10mA ♦ 10mA ≤ IOUT ≤ 5A, 6.0V ≤ VIN ≤ 16V 2.5V Version Output Voltage 3.3V Version Output Voltage 5.0V Version Output Voltage All Voltage Options SPX29501/02 Line Regulation 0.06 0.5 % IOUT=10mA,(VOUT+1V) ≤ VIN ≤ 16V Load Regulation 0.2 1 % VIN=VOUT+2V, 10mA≤ IOUT ≤ IFL (Note 2) ∆V/∆T 20 100 ppm/°C Dropout Voltage, except 1.8V 90 250 420 250 mV ♦ IOUT=250mA eg IOUT=2.5A ♦ IOUT=5A Ground Current (Note 4) 20 70 mA ♦ IOUT=2.5A IOUT=5A Ground Pin Current at Dropout 3 Current Limit 7.5 Output Noise Voltage (10Hz to 100kHz) IL=100mA 425 800 50 mA 10 A VIN=0.5V less than specified VOUT, IOUT=10mA ♦ (Note 3) CL=22µF µVRMS 350 Reference Voltage 1.228 1.215 Reference Voltage 1.203 1.240 CL=33µF 1.252 1.265 V 1.277 V 80 120 nA Adjustable version only ♦ Adjust Pin Bias Current 40 Reference Voltage Temp. Coeff. 20 ppm/°C Adjust Pin Bias Current Temp. Coeff. 0.1 nA/°C Rev:B Nov 2008 ♦ VOUT Temp Coefficient (Note 5) Adjustable version only (Note 7) ♦ SPX29500/01/02/03 5A Low Dropout Voltage Regulator 2 (Note 6) © Copyright 2008 Exar Corporation ELECTRICAL CHARACTERISTICS: Continued Specifications are at VIN = VOUT + 1V and IOUT = 10mA, CIN = 6.8µF, COUT = 22µF, TA = 25°C, unless otherwise specified. The ♦ denotes the specifications which apply over the full operating temperature range, unless otherwise specified. PARAMETER MIN Flag Output (Error Comparator) TYP Output Leakage Current 0.01 Output Low Voltage 220 Upper Threshold Voltage 40 25 UNITS 1 2 µA 300 400 mV CONDITIONS Device set for 5V,VIN=4.5V, IOL=250µA ♦ mV Device set for 5V, (Note 8) ♦ 75 Hysteresis 95 140 mV Device set for 5V, (Note 8) ♦ 15 Enable Input VOH=16V ♦ 60 Lower Threshold Voltage Input Logic Voltage Low (OFF) High (ON) MAX SPX29501 mV Device set for 5V, (Note 8) SPX29501/02 0.8 V 600 750 2 4 µA (Note 10) 2.4 ENABLE Input Current 100 0.6 Regulator Output Current in Shutdown 10 Thermal Resistance 2 60 2 60 VEN=16V ♦ VEN=0.8V µA ♦ (Note 9) µA 500 ♦ °C/W TO-220 Junction to Case, at Tab TO-220 Junction to Ambient TO-263 Junction to Case, at Tab TO-263 Junction to Ambient NOTES: Note 1: Maximum positive supply voltage of 20V must be of limited duration (