[{"data":1,"prerenderedAt":1074},["ShallowReactive",2],{"schematic:dual-rail-7815-7915-split-power-supply:en":3},{"schematic":4,"title":19,"shortDescription":22,"proseSource":1037,"localizationFallbackIssues":1038,"related":1039,"confirmations":1038},{"schemaVersion":5,"governance":6,"slug":18,"title":19,"cluster":20,"tier":21,"shortDescription":22,"deepTechnicalOverview":23,"theoryOfOperation":24,"keySpecifications":25,"applications":50,"gotchas":55,"formulas":75,"bom":141,"interactiveElements":215,"circuitJson":310,"svg":1030,"relatedSchematicSlugs":1031,"relatedComponentSlugs":1034,"relatedBoardSlugs":1036},"1.0",{"publication":7,"verification":10,"provenance":15},{"status":8,"publishedDate":9},"published","2026-10-23",{"status":11,"verifiedDate":9,"verifiedBy":12,"checklist":13},"verified","Claude (documentary review against TI SNOSBQ7C Figure 8 and TI SNOSBT0L; CAD redraw; LLM localization review; owner publication GO; no bench or native-human claim)",{"schema":14,"technicalFacts":14,"relationships":14,"sources":14},true,{"sourceUrls":16},[17],"https:\u002F\u002Fwww.ti.com\u002Flit\u002Fds\u002Fsymlink\u002Flm79.pdf","dual-rail-7815-7915-split-power-supply","±15 V Tracking Dual Supply (LM7815 \u002F LM7915)","power_supplies","Tier 2","The ±15 V, 1 A tracking regulator from the TI LM79xx datasheet: an LM7915 trimmed to exactly −15 V and an LM7815 whose ground pin is driven by an LM307 op-amp, so the positive rail mirrors the negative one.","This is Figure 8 of the Texas Instruments LM79XX datasheet (SNOSBQ7C), a split supply for op-amp and audio circuits that need equal positive and negative rails. Two fixed regulators make the rails: an LM7915 for −15 V and an LM7815 for +15 V (TI draws it as the LM340T-15, which the LM340 datasheet specifies together with the LM7815). On their own the two rails could differ by up to 1.2 V, because each regulator is only guaranteed to within 4% (14.4 V to 15.6 V). The circuit removes that difference in two steps: a trimmer sets the negative output to exactly −15.0 V, and an op-amp moves the ground pin of the positive regulator until a 1% resistor divider between the rails reads 0 V, which forces the positive rail to the same magnitude. Clamp diodes keep either output from being pulled to the wrong polarity. The raw ±VIN inputs come from a separate rectifier and filter (TI measured the ripple with 3000 µF input capacitors); they are not drawn.","### 1. Two regulators share one COMMON\nU1 (LM7815) regulates +VIN down to +15 V and U2 (LM7915) regulates −VIN to −15 V. COMMON is the 0 V point between the rails, shared with the load. Each regulator holds its output a fixed 15 V away from its own GND pin, and in this circuit neither GND pin is tied straight to COMMON: that is what allows both outputs to be adjusted.\n\n### 2. Trimming the negative rail\nThe GND pin of U2 sits on R1 (50 Ω) to COMMON. R3 is connected across the two outputs, and its wiper feeds current through R2 (1 kΩ) into R1, lifting or lowering the GND pin and with it the −15 V output. With the wiper at either end the shift is about:\n$$\\Delta V_{GND} \\approx \\pm V_W \\frac{R_1}{R_1 + R_2} = \\pm 15\\text{ V} \\cdot \\frac{50\\,\\Omega}{1050\\,\\Omega} \\approx \\pm 0.71\\text{ V}$$\nThe regulator's own ground-pin current, 1.5 mA typical, also flows through R1 and adds about 75 mV; the trim takes that up too. R3 is set for exactly −15.0 V at the output.\n\n### 3. The positive rail tracks the negative rail\nR4 and R5, both 10 kΩ 1%, form a divider from +15 V to −15 V. The LM307 compares its midpoint (pin 2) with COMMON (pin 3) and drives the GND pin of U1 from pin 6. If the positive rail is too high, the midpoint rises above 0 V, the op-amp output falls and pulls U1 down by the same amount. The loop settles when the midpoint is at 0 V:\n$$V_{+} = -V_{-} \\cdot \\frac{R_4}{R_5}$$\nWith R4 = R5 the positive output equals the magnitude of the negative output, so trimming R3 sets both rails. TI notes that the tolerance of R4 and R5 decides how well the outputs match. The op-amp output only moves by the difference between the LM7815's own output, 14.4 V to 15.6 V, and the target, and it must sink U1's quiescent current, up to 8 mA.\n\n### 4. Output capacitors and clamp diodes\nC1 and C2 (25 µF each) sit on the outputs. TI requires an output capacitor on the LM79xx for stability, either 1 µF solid tantalum or 25 µF aluminium electrolytic. D1 and D2 (1N4001) are reverse-biased in normal operation; TI draws them without describing their purpose. If one output is pulled past COMMON toward the other polarity, for example when one regulator starts before the other with a load connected between the rails, the diode conducts and limits the reverse voltage on that regulator to about one diode drop.\n\n### 5. Inputs, headroom and heat\nC4 and C5 are needed only if the filter capacitors of the raw supply are more than 3 in (about 7.6 cm) away. The LM7815 needs at least 17.7 V for its line regulation specification and tolerates 35 V at most; the LM7915 is specified from −17.5 V to −30 V in its line regulation tests and tolerates −35 V. Each regulator dissipates the voltage it drops times the load current:\n$$P_D = (V_{IN} - V_{OUT}) \\cdot I_{OUT} = (20\\text{ V} - 15\\text{ V}) \\cdot 1\\text{ A} = 5\\text{ W}$$\nAt that level both regulators need heatsinks.",[26,29,32,35,38,41,44,47],{"label":27,"value":28},"Regulated Output Voltage","+15 V and −15 V, tracking; up to 1 A (TI Figure 8)",{"label":30,"value":31},"Load Regulation at ΔIL = 1 A","40 mV (−15 V), 2 mV (+15 V) (TI Figure 8 table)",{"label":33,"value":34},"Output Ripple","100 µVrms at CIN = 3000 µF, IL = 1 A (TI Figure 8 table)",{"label":36,"value":37},"Output Noise","150 µVrms, 10 Hz ≤ f ≤ 10 kHz (TI Figure 8 table)",{"label":39,"value":40},"Temperature Stability","50 mV (TI Figure 8 table)",{"label":42,"value":43},"Input Voltage Range","+VIN 17.7 V to 35 V (LM7815, TI SNOSBT0L); −VIN −17.5 V to −35 V (LM7915, TI SNOSBQ7C)",{"label":45,"value":46},"Output Trim Range","≈ ±0.7 V (calculated from R1, R2 and the ±15 V rails)",{"label":48,"value":49},"Rail Matching","Set by the tolerance of R4 and R5 (1% drawn)",[51,52,53,54],"Bipolar supply for op-amp and instrumentation circuits","Audio preamplifier and mixer power supplies","Analog test equipment that needs symmetric rails","Laboratory ±15 V bench supplies",[56,61,65,70],{"title":57,"trap":58,"solution":59,"severity":60},"Both Regulators on One Grounded Heatsink","Neither tab is at COMMON. The LM7915 tab is its input, −VIN, and the LM7815 tab is its GND pin, which in this circuit is the op-amp output. Bolting both to one metal heatsink or a grounded chassis without insulation shorts −VIN, the op-amp output and COMMON together.","Insulate each regulator with a mica or silicone pad and an insulating bushing, or give each its own isolated heatsink.","critical",{"title":62,"trap":63,"solution":64,"severity":60},"78xx and 79xx Pinouts Differ","In TO-220 the LM7815 pins are INPUT, GND, OUTPUT, but the LM7915 pins are GND, INPUT, OUTPUT. Copying the positive layout for the negative regulator swaps its input and ground.","Check each part against its own datasheet connection diagram before soldering (TI SNOSBT0L §5, TI SNOSBQ7C Figure 1).",{"title":66,"trap":67,"solution":68,"severity":69},"Overheating at Full Load","Each regulator dissipates (VIN − VOUT) · IOUT, about 5 W at 1 A from 20 V. Without a heatsink the regulator heats up until its thermal protection reduces the output.","Keep the input headroom small but above the minimum, and size a heatsink for the real load current.","warning",{"title":71,"trap":72,"solution":73,"severity":74},"Mismatched Sense Resistors","The positive rail copies the negative rail through R4 and R5. A 1% mismatch between them gives about 1% difference between the rail magnitudes.","Use 1% or better resistors for R4 and R5, or matched pairs where the rails must agree closely.","info",[76,98,119],{"name":77,"latexOrText":78,"description":79,"variables":80},"Tracking Condition","V_{+} = -V_{-} \\cdot \\frac{R_4}{R_5}","The op-amp holds the R4\u002FR5 midpoint at 0 V, so the positive rail is set by the negative rail and the resistor ratio.",[81,86,89,94],{"symbol":82,"name":83,"typicalValue":84,"unit":85},"R_4","Upper sense resistor","10","kΩ",{"symbol":87,"name":88,"typicalValue":84,"unit":85},"R_5","Lower sense resistor",{"symbol":90,"name":91,"typicalValue":92,"unit":93},"V_{-}","Negative output","-15","V",{"symbol":95,"name":96,"typicalValue":97,"unit":93},"V_{+}","Positive output","15",{"name":99,"latexOrText":100,"description":101,"variables":102},"Negative Rail Trim Range","\\Delta V_{GND} \\approx \\pm V_W \\frac{R_1}{R_1 + R_2}","Shift of the U2 ground pin, and therefore of the −15 V output, with the R3 wiper at either end. The regulator's own ground-pin current is neglected.",[103,106,111,115],{"symbol":104,"name":105,"typicalValue":97,"unit":93},"V_W","Wiper voltage at the end of travel",{"symbol":107,"name":108,"typicalValue":109,"unit":110},"R_1","Trim reference resistor","50","Ω",{"symbol":112,"name":113,"typicalValue":114,"unit":110},"R_2","Trim feed resistor","1000",{"symbol":116,"name":117,"typicalValue":118,"unit":93},"\\Delta V_{GND}","Trim range (calculated)","0.71",{"name":120,"latexOrText":121,"description":122,"variables":123},"Regulator Power Dissipation","P_D = (V_{IN} - V_{OUT}) \\cdot I_{OUT}","Heat in each regulator; the 20 V input is an example value.",[124,128,131,136],{"symbol":125,"name":126,"typicalValue":127,"unit":93},"V_{IN}","Input voltage magnitude (example)","20",{"symbol":129,"name":130,"typicalValue":97,"unit":93},"V_{OUT}","Output voltage magnitude",{"symbol":132,"name":133,"typicalValue":134,"unit":135},"I_{OUT}","Load current","1","A",{"symbol":137,"name":138,"typicalValue":139,"unit":140},"P_D","Dissipation (calculated)","5","W",[142,150,156,162,168,172,178,183,185,192,196,200,204,212],{"refDes":143,"componentName":144,"value":145,"package":146,"quantity":147,"role":148,"notes":149},"U1","Positive Voltage Regulator","LM7815","TO-220",1,"+15 V regulator","LM340T-15 in TI Figure 8. Same TI datasheet (SNOSBT0L) as the LM7805.",{"refDes":151,"componentName":152,"value":153,"package":146,"quantity":147,"role":154,"notes":155},"U2","Negative Voltage Regulator","LM7915","−15 V regulator","LM7915CT in TI Figure 8.",{"refDes":157,"componentName":158,"value":159,"package":160,"quantity":147,"role":161},"U3","Operational Amplifier","LM307","DIP-8","Tracking amplifier",{"refDes":163,"componentName":164,"value":165,"package":166,"quantity":147,"role":167},"R1","Resistor","50Ω","Axial \u002F 0805","Trim reference",{"refDes":169,"componentName":164,"value":170,"package":166,"quantity":147,"role":171},"R2","1kΩ","Trim feed",{"refDes":173,"componentName":174,"value":175,"package":176,"quantity":147,"role":177},"R3","Trimmer Potentiometer","5kΩ","Trimmer","Output trim to −15.0 V",{"refDes":179,"componentName":180,"value":181,"package":166,"quantity":147,"role":182},"R4","Precision Resistor","10kΩ 1%","Tracking divider",{"refDes":184,"componentName":180,"value":181,"package":166,"quantity":147,"role":182},"R5",{"refDes":186,"componentName":187,"value":188,"package":189,"quantity":147,"role":190,"notes":191},"C1","Aluminium Electrolytic Capacitor","25µF","Radial","+15 V output","22 µF is the nearest common value. Voltage rating above 15 V.",{"refDes":193,"componentName":187,"value":188,"package":189,"quantity":147,"role":194,"notes":195},"C2","−15 V output","+ to COMMON. Required for LM79xx stability.",{"refDes":197,"componentName":187,"value":188,"package":189,"quantity":147,"role":198,"notes":199},"C4","+VIN bypass","Only if the filter capacitors are more than 3 in away. Voltage rating above +VIN.",{"refDes":201,"componentName":187,"value":188,"package":189,"quantity":147,"role":202,"notes":203},"C5","−VIN bypass","+ to COMMON. Only if the filter capacitors are more than 3 in away.",{"refDes":205,"componentName":206,"value":207,"package":208,"quantity":147,"componentSlug":209,"role":210,"notes":211},"D1","Rectifier Diode","1N4001","DO-41","1n4007","+15 V clamp","A 1N4007 works the same; only its reverse-voltage rating is higher.",{"refDes":213,"componentName":206,"value":207,"package":208,"quantity":147,"componentSlug":209,"role":214,"notes":211},"D2","−15 V clamp",{"U1":216,"U2":226,"U3":236,"R1":244,"R2":250,"R3":256,"R4":262,"R5":269,"C1":273,"C2":281,"C4":287,"C5":293,"D1":299,"D2":305},{"refDes":143,"name":217,"value":145,"role":218,"description":219,"footprint":220,"specs":221},"LM7815 Positive Regulator","+15 V regulator, follows the negative rail","Drawn as LM340T-15 in TI Figure 8; TI specifies the LM340-15 and LM7815 together. It holds its output 15 V above its GND pin. Here the GND pin is not at COMMON: the op-amp drives it, so the output can be moved slightly to match the negative rail.","TO-220 (tab = GND)",{"Output Voltage":222,"Input for Line Regulation":223,"Quiescent Current":224,"DC Input Voltage":225},"14.4 V – 15.6 V at TJ = 25 °C, 5 mA ≤ IO ≤ 1 A (TI SNOSBT0L §6.8)","17.7 V minimum at TJ = 25 °C, IO ≤ 1 A","8 mA maximum at TJ = 25 °C","35 V absolute maximum",{"refDes":151,"name":227,"value":153,"role":228,"description":229,"footprint":230,"specs":231},"LM7915 Negative Regulator","−15 V regulator, trimmed to −15.0 V","Holds its output 15 V below its GND pin. The GND pin sits on R1 instead of COMMON, so the trim network can shift it a fraction of a volt and set the output to exactly −15.0 V.","TO-220 (tab = INPUT)",{"Output Voltage":232,"Dropout Voltage":233,"Quiescent Current":234,"Input Voltage":235},"−14.4 V to −15.6 V at TJ = 25 °C (TI SNOSBQ7C)","1.1 V typical at IOUT = 1 A","1.5 mA typical, 3 mA maximum","−35 V absolute maximum",{"refDes":157,"name":237,"value":159,"role":238,"description":239,"footprint":240,"specs":241},"LM307 Tracking Op-Amp","Makes the positive rail mirror the negative rail","Compares the midpoint of R4 and R5 with COMMON and drives the GND pin of U1 until the midpoint sits at 0 V, which happens only when both rails have the same magnitude. It is powered from the two outputs (pin 7 to +15 V, pin 4 to −15 V) and must sink the quiescent current of U1.","DIP-8 (pins 2, 3, 4, 6, 7 as in TI Figure 8)",{"Inputs":242,"Output":243},"+ (pin 3) to COMMON, − (pin 2) to the R4\u002FR5 midpoint","Pin 6 to the GND pin of U1",{"refDes":163,"name":245,"value":165,"role":246,"description":247,"footprint":166,"specs":248},"Trim Reference Resistor","Sets the trim range with R2","Connects the GND pin of U2 to COMMON. The trim current from R2 and the regulator's own ground-pin current flow through it and shift the GND pin, and therefore the −15 V output.",{"Resistance":249},"50 Ω (TI Figure 8)",{"refDes":169,"name":251,"value":170,"role":252,"description":253,"footprint":166,"specs":254},"Trim Feed Resistor","Feeds the trim current from R3","Carries current from the wiper of R3 into R1. With R1 it limits the trim range to about ±0.7 V (calculated).",{"Resistance":255},"1 kΩ (TI Figure 8)",{"refDes":173,"name":257,"value":175,"role":258,"description":259,"footprint":176,"specs":260},"Output Trim Potentiometer","Sets the negative output to −15.0 V","Connected across the two outputs. Its wiper feeds R2, so turning it moves the GND pin of U2 up or down. TI marks it \"output trim to −15.0 V\"; the positive rail follows through the op-amp.",{"Resistance":261},"5 kΩ (TI Figure 8)",{"refDes":179,"name":263,"value":181,"role":264,"description":265,"footprint":266,"specs":267},"Upper Sense Resistor","Half of the tracking divider","With R5 forms a divider from +15 V to −15 V whose midpoint goes to the op-amp. TI notes that the tolerance of R4 and R5 determines how well the two outputs match.","Axial \u002F 0805, 1%",{"Resistance":268},"10 kΩ, 1% (TI Figure 8)",{"refDes":184,"name":270,"value":181,"role":264,"description":271,"footprint":266,"specs":272},"Lower Sense Resistor","Lower half of the divider. Any mismatch between R4 and R5 appears directly as a difference between the magnitudes of the two outputs.",{"Resistance":268},{"refDes":186,"name":274,"value":188,"role":275,"description":276,"footprint":277,"specs":278},"+15 V Output Capacitor","Output capacitor, positive rail","From +15 V to COMMON, positive terminal on +15 V. It improves the transient response of the positive rail.","Radial electrolytic",{"Capacitance":279,"Type":280,"Function":96},"25 µF (TI Figure 8)","Aluminium electrolytic",{"refDes":193,"name":282,"value":188,"role":283,"description":284,"footprint":277,"specs":285},"−15 V Output Capacitor","Output capacitor, negative rail","From COMMON to −15 V, positive terminal on COMMON. TI requires an output capacitor on the LM79xx for stability: 1 µF solid tantalum, or 25 µF aluminium electrolytic.",{"Capacitance":279,"Type":280,"Function":286},"Negative output, required for stability (TI Figure 2 note)",{"refDes":197,"name":288,"value":188,"role":289,"description":290,"footprint":277,"specs":291},"+VIN Bypass Capacitor","Input bypass, positive side","From +VIN to COMMON. TI marks it as necessary only if the raw supply's filter capacitors are more than 3 in (about 7.6 cm) from the regulators.",{"Capacitance":279,"Type":280,"Function":292},"Positive input, only with long input leads",{"refDes":201,"name":294,"value":188,"role":295,"description":296,"footprint":277,"specs":297},"−VIN Bypass Capacitor","Input bypass, negative side","From COMMON to −VIN, positive terminal on COMMON. Same condition as C4.",{"Capacitance":279,"Type":280,"Function":298},"Negative input, only with long input leads",{"refDes":205,"name":300,"value":207,"role":301,"description":302,"footprint":208,"specs":303},"+15 V Clamp Diode","Keeps the positive output from going negative","Cathode on +15 V, anode on COMMON, so it is reverse-biased in normal operation. If the positive output is pulled below COMMON, for example when the negative rail starts first with a load between the rails, D1 conducts and limits it to about one diode drop.",{"Part":304},"1N4001 (TI Figure 8); 1N4002–1N4007 differ only in reverse-voltage rating",{"refDes":213,"name":306,"value":207,"role":307,"description":308,"footprint":208,"specs":309},"−15 V Clamp Diode","Keeps the negative output from going positive","Cathode on COMMON, anode on −15 V. It conducts only if the negative output is pulled above COMMON, and limits it to about one diode drop.",{"Part":304},{"schemaVersion":311,"id":312,"meta":313,"components":319,"nets":468,"junctions":556,"netLabels":621,"wires":622},"1.5","dual_rail_15v_tracking",{"title":19,"locale":314,"grid":315,"source":316},"en",20,{"type":317,"ref":318,"url":17},"datasheet","Texas Instruments LM79XX Series 3-Terminal Negative Regulators, SNOSBQ7C (revised May 2013), Figure 8 \"±15V, 1 Amp Tracking Regulators\" (p. 7) and Figure 2 notes (p. 1); LM340 \u002F LM7815 characteristics from TI SNOSBT0L (revised September 2016) §6.8. The LM340T-15 of Figure 8 is drawn as LM7815, which the LM340 datasheet specifies together with 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font-size=\"11\">+15V\u003C\u002Ftext>\u003Ctext x=\"844\" y=\"436.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">COMMON\u003C\u002Ftext>\u003Ctext x=\"844\" y=\"736.4\" text-anchor=\"middle\" fill=\"#18181a\" stroke=\"none\" font-family=\"'Space Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace\" font-size=\"11\">-15V\u003C\u002Ftext>\u003C\u002Fsvg>",[1032,1033],"lm7805-5v-linear-regulator-standard-decoupling","lm317-adjustable-linear-regulator",[1035,209],"lm7805",[],"canonical",null,[1040,1053,1064],{"slug":1032,"cluster":20,"tier":1041,"supplyVoltage":1042,"voltageSpecification":1045,"signalDomain":471,"breadboardFriendly":14,"title":1048,"shortDescription":1049,"bomCount":1050,"formulaCount":1051,"search":1052},"Tier 1",[1043,1044],"5v","12v",{"kind":1046,"value":1047,"label":27},"output","4.75–5.25V at VIN=7–18V, IOUT=5mA–1A, TJ=0–125°C (ST Table 10)","LM7805 5V Linear Regulator with Decoupling (L7805CV)","A nominal 9V-to-5V supply using ST L7805CV, input\u002Foutput bypass capacitors, a discharge-path diode and an LED indicator. Includes conditional ratings and thermal calculations.",8,3,"lm7805 5v linear regulator with decoupling (l7805cv)\na nominal 9v-to-5v supply using st l7805cv, input\u002Foutput bypass capacitors, a discharge-path diode and an led indicator. includes conditional ratings and thermal calculations.\nlm7805 5v linear regulator with decoupling (l7805cv)\na nominal 9v-to-5v supply using st l7805cv, input\u002Foutput bypass capacitors, a discharge-path diode and an led indicator. includes conditional ratings and thermal calculations.\nlm7805 5v linear regulator with decoupling (l7805cv)\na nominal 9v-to-5v supply using st l7805cv, input\u002Foutput bypass capacitors, a discharge-path diode and an led indicator. includes conditional ratings and thermal calculations.\npower_supplies\nstmicroelectronics l7805cv\nl7805cv\nu1\nvishay silicon rectifier\n1n4007\nd1\ngeneric input bulk capacitor\n10µf \u002F 25v\nc1\ngeneric ceramic input bypass\n330nf \u002F 50v\nc2\ngeneric ceramic output bypass\n100nf \u002F 25v\nc3\ngeneric output bulk capacitor\n100µf \u002F 16v\nc4\ngeneric led series resistor\n330ω \u002F 0.25w\nr1\ngeneric green indicator led\ngreen led\nled1",{"slug":1054,"cluster":20,"tier":1041,"supplyVoltage":1055,"voltageSpecification":1057,"signalDomain":471,"breadboardFriendly":14,"title":1059,"shortDescription":1060,"bomCount":1061,"formulaCount":1062,"search":1063},"lm2596-step-down-buck-converter",[1043,1044,1056],"dual_rail",{"kind":1046,"value":1058,"label":27},"5.0V DC (±4% full line, load, temp: 4.80V to 5.20V)","LM2596 Step-Down Buck Converter (5V \u002F 3A)","High-efficiency 150-kHz step-down switching regulator delivering a regulated 5V output at up to 3A continuous load from a 7V–40V DC supply with minimal external components.",7,4,"lm2596 step-down buck converter (5v \u002F 3a)\nhigh-efficiency 150-khz step-down switching regulator delivering a regulated 5v output at up to 3a continuous load from a 7v–40v dc supply with minimal external components.\nlm2596 step-down buck converter (5v \u002F 3a)\nhigh-efficiency 150-khz step-down switching regulator delivering a regulated 5v output at up to 3a continuous load from a 7v–40v dc supply with minimal external components.\nlm2596 step-down buck converter (5v \u002F 3a)\nhigh-efficiency 150-khz step-down switching regulator delivering a regulated 5v output at up to 3a continuous load from a 7v–40v dc supply with minimal external components.\npower_supplies\ntexas instruments lm2596-5.0\nlm2596t-5.0\nu1\non semiconductor schottky barrier rectifier\n1n5822\nd1\npulse electronics toroidal power inductor\n33µh \u002F 3.5a\nl1\nnichicon low-esr input electrolytic capacitor\n680µf \u002F 50v\nc1\nnichicon low-esr output electrolytic capacitor\n220µf \u002F 25v\nc2\ndc power input port\n+12v dc (7v–40v)\np_vin\ndc power output port\n+5.0v dc (up to 3a)\np_vout",{"slug":1033,"cluster":20,"tier":1041,"supplyVoltage":1065,"voltageSpecification":1067,"signalDomain":471,"breadboardFriendly":14,"title":1070,"shortDescription":1071,"bomCount":1072,"formulaCount":1051,"search":1073},[1043,1044,1066],"24v",{"kind":1046,"value":1068,"label":1069},"1.25–9V respects recommended 3V headroom with nominal 12V input; regulation also requires the specified load, temperature and power conditions","Calculated nominal setpoints","LM317 Adjustable Positive Linear Voltage Regulator","Adjustable DC voltage reference circuit using TI LM317KCS and nominal 12V input. Calculated setpoints up to 9V respect the recommended 3V headroom; usable current requires a load and thermal budget.",6,"lm317 adjustable positive linear voltage regulator\nadjustable dc voltage reference circuit using ti lm317kcs and nominal 12v input. calculated setpoints up to 9v respect the recommended 3v headroom; usable current requires a load and thermal budget.\nlm317 adjustable positive linear voltage regulator\nadjustable dc voltage reference circuit using ti lm317kcs and nominal 12v input. calculated setpoints up to 9v respect the recommended 3v headroom; usable current requires a load and thermal budget.\nlm317 adjustable positive linear voltage regulator\nadjustable dc voltage reference circuit using ti lm317kcs and nominal 12v input. calculated setpoints up to 9v respect the recommended 3v headroom; usable current requires a load and thermal budget.\npower_supplies\nadjustable positive linear voltage regulator\nlm317kcs\nu1\nprecision metal film resistor 1\u002F4w\n240ω\nr1\ncermet linear potentiometer \u002F trimmer\n5kω\nr2\nmultilayer ceramic capacitor (mlcc)\n0.1µf\nc1\naluminum electrolytic capacitor\n10µf\nc2\nstandard silicon rectifier diode\n1n4007\nd1",1793836429449]