SPX1117M3-L/TR

SPX1117 800mA Low Dropout Voltage Regulator September 2018 Rev. 2.1.1 GENERAL DESCRIPTION APPLICATIONS The SPX1117 is a low power positive-voltage regulator designed to satisfy moderate power requirements with a cost effective, small footprint solution. • Desktop PC Servers This device is an excellent choice for use in battery-powered applications and portable computers. The SPX1117 features very low quiescent current and a low dropout voltage of 1.1V at a full load. As output current decreases, quiescent current flows into the load, increasing efficiency. SPX1117 is available in adjustable or fixed 1.5V, 1.8V, 2.5V, 3.3V and 5V output voltages. • Power Supplies • Graphic/Video Cards • Industrial Equipments FEATURES • Guaranteed 800mA Output Current • Guaranteed 1A Peak Current • Three Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V and 5V The SPX1117 is offered in a 3-pin SOT-223 surface mount packages. • Low Quiescent Current • Low Dropout Voltage of 1.1V at 800mA An output capacitor of 10µF provides unconditional stability while a smaller 2.2µF capacitor is sufficient for most applications. • 0.1% Line and 0.2% Load Regulation • Stable with 2.2µF Ceramic Capacitor • Overcurrent and Thermal Protection • Lead Free, RoHS Compliant SOT223 Package FUNCTIONAL DIAGRAM Fig. 1: SPX1117 Application Diagram 1/11 Rev. 2.1.1 SPX1117 800mA Low Dropout Voltage Regulator ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Power Dissipation ................................ Internally Limited Lead Temperature (Soldering, 5 sec) ..................... 260°C Storage Temperature .............................. -65°C to 150°C Operating Junction Temperature Range ... -40°C to +125°C Input Supply Voltage .............................................. 20V Input to Output Voltage ........................................18.8V ESD Rating (HBM - Human Body Model) .................... 2kV ELECTRICAL SPECIFICATIONS Specifications with standard type are for an Operating Ambient Temperature of TA = 25°C only; limits applying over the full Operating Junction Temperature range are denoted by a “•”. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless otherwise indicated, CIN = COUT =10µF, TA= 25°C. Parameter Min. Typ. Max. 1.485 1.500 1.515 Units Conditions 1.5V Version Output Voltage 1.530 1.470 V IOUT=5mA, VIN=3.0V, TJ=25°C • 5mA≤ IOUT ≤800mA, 2.9V≤ VIN ≤10V 1.8V Version Output Voltage 1.782 1.800 1.818 1.836 1.764 V IOUT=5mA, VIN=3.3V, TJ=25°C • 5mA≤ IOUT ≤800mA, 3.2V≤ VIN ≤10V 2.5V Version Output Voltage 2.475 2.500 2.525 2.550 2.450 V IOUT=5mA, VIN=4.0V, TJ=25°C • 5mA≤ IOUT ≤800mA, 3.9V≤ VIN ≤10V 3.3V Version Output Voltage 3.267 3.300 3.333 3.366 3.234 V IOUT=5mA, VIN=4.8V, TJ=25°C • 5.0V Version Output Voltage 4.950 5.000 5.050 5.100 4.900 V IOUT=5mA, VIN=6.5V, TJ=25°C • 5mA≤ IOUT ≤800mA, 6.4V≤ VIN ≤12V All Voltage Options Reference Voltage 1.238 1.250 Output Voltage Temperature Stability 1.262 1.270 1.225 0.3 V 3 7 mV Load Regulation (note 1) 6 12 mV 1.00 1.20 1.05 1.25 1.10 1.30 Quiescent Current 5 10 Adjust Pin Current 50 120 1.5 2.0 A 0.01 0.1 %/W Current Limit 1.0 Thermal Regulation Ripple Rejection 60 5mA≤IOUT≤800mA, 1.4V≤(VIN–VOUT)≤10V % Line Regulation (note 1) Dropout Voltage (note 2) IOUT=5mA, (VIN – VOUT)=2V, TJ=25°C • 75 • 5mA≤ IOUT ≤800mA, VOUT = Fixed/Adj. • IOUT=100mA • IOUT=500mA • IOUT=800mA mA • 4.25V≤ VIN ≤6.5V µA • V dB 2/11 VINMIN≤ VIN ≤12V, VOUT = Fixed/Adj., IOUT=5mA (VIN – VOUT)=5V 25°C, 30ms pulse fRIPPLE=120Hz, (VIN – VOUT)=2V, VRIPPLE=1VPP Rev. 2.1.1 SPX1117 800mA Low Dropout Voltage Regulator Parameter Min. Typ. RMS Output Noise Max. Units Conditions 0.03 % 125°C, 1000Hrs 0.003 % % of VOUT, 10Hz≤f≤10kHz Long Term Stability Note 1: For fixed voltage option VINMIN=VOUT+1.5V For adjustable voltage option VIN-VOUT=1.4V Note 2: Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage with respect to the nominal output voltage at VIN=VOUT+1.5V PIN ASSIGNMENT Fig. 2: SPX1117 Pin Assignment (Top View, TAB connected to VOUT) ORDERING INFORMATION(1) Part Number Operating Temperature Range Lead-Free Package Packing Method Output Voltage Adjustable SPX1117M3-L/TR 1.5V SPX1117M3-L-1-5/TR 1.8V SPX1117M3-L-1-8/TR -40°C≤TJ≤+125°C Yes(2) SOT223-3 Tape & Reel SPX1117M3-L-2-5/TR 2.5V SPX1117M3-L-3-3/TR 3.3V SPX1117M3-L-5-0/TR 5.0V NOTE: 1. Refer to www.exar.com/SPX1117 for most up-to-date Ordering Information. 2. Visit www.exar.com for additional information on Environmental Rating. 3/11 Rev. 2.1.1 SPX1117 800mA Low Dropout Voltage Regulator TYPICAL PERFORMANCE CHARACTERISTICS All data taken at TA = 25°C, unless otherwise specified - Schematic and BOM from Application Information section of this datasheet. Fig. 3: Load Regulation SPX1117M3-L-3-3, VIN=4.8V Fig. 4: Line Regulation SPX1117M3-L-3-3, IOUT=10mA Fig. 5: Dropout Voltage vs Output Current SPX1117M3-L-3-3, VIN=4.8V, COUT=2.2µF Fig. 6: Current Limit IOUT pulsed from 10mA to Current limit SPX1117M3-L-3-3, VIN=4.8V, CIN=COUT=2.2µF Fig. 7: Current Limit Output Voltage Deviation SPX1117M3-L-3-3, IOUT=10mA to 1A Step Fig. 8: VOUT vs Temperature VIN=2.5V, IOUT=10mA 4/11 Rev. 2.1.1 SPX1117 800mA Low Dropout Voltage Regulator Fig. 9: VIN=3.0V, IOUT=10mA Fig. 10: VIN=3.3V, IOUT=10mA Fig. 11: VIN=4.0V, IOUT=10mA Fig. 12: VIN=4.85V, IOUT=10mA Fig. 13: Line Regulation vs Temperature VOUT=1.8V (Adj), VIN=3.3V Fig. 14: Output Voltage vs Temperature Different IOUT, VOUT=1.8V (Adj), VIN=3.3V Fig. 15: Line Regulation over Temperature ILOAD=800mA, VOUT=1.8V(adj) 5/11 Rev. 2.1.1 SPX1117 800mA Low Dropout Voltage Regulator APPLICATION INFORMATION OUTPUT CAPACITOR To ensure the stability of the SPX1117, an output capacitor of at least 2.2µF (tantalum or ceramic) or 10µF (aluminum) is required. The value may change based on the application requirements of the output load or temperature range. The value of ESR can vary based on the type of capacitor used in the applications to guarantee stability. The recommended value for ESR is 0.5Ω or less. A larger value of output capacitance (up to 100µF) can improve the load transient response. Fig. 18 SOLDERING METHODS The SPX1117 SOT-223 package is designed to be compatible with infrared reflow or vaporphase reflow soldering techniques. During soldering, the non-active or mildly active fluxes may be used. The SPX1117 die is attached to the heatsink lead which exits opposite the input, output, and ground pins. Hand soldering and wave soldering should be avoided since these methods can cause damage to the device with excessive thermal gradients on the package. The SOT-223 recommended soldering method are as follows: vapor phase reflow and infrared reflow with the component preheated to within 65°C of the soldering temperature range. Fig. 16: Load Step Response 0mA to 800mA VIN=3.3V, VOUT=1.8V, CIN=10µF, COUT=2.2µF, Ceramic Signal 1=VOUT, Signal 4=ILOAD THERMAL CHARACTERISTICS The thermal resistance of SPX1117 (SOT-223 package) is 15°C/W from junction to tab and 31°C/W from tab to ambient for a total of 46 °C/W from junction to ambient (Table 1). The SPX1117 features the internal thermal limiting to protect the device during overload conditions. Special care needs to be taken during continuous load conditions such that the maximum junction temperature does not exceed 125 °C. Thermal protection is activated at >155°C and deactivated at