{
  "base": {
    "absolute_max": {
      "TJ_max": [
        {
          "condition": "Maximum junction temperature",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.1 Absolute Maximum Ratings"
          },
          "max": 150,
          "min": null,
          "notes": null,
          "typ": null,
          "unit": "\u00b0C"
        }
      ],
      "Tstg": [
        {
          "condition": "Storage temperature",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.1 Absolute Maximum Ratings"
          },
          "max": 150,
          "min": -65,
          "notes": null,
          "typ": null,
          "unit": "\u00b0C"
        }
      ],
      "VIN_max": [
        {
          "condition": "Maximum supply voltage (VIN)",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.1 Absolute Maximum Ratings"
          },
          "max": 45,
          "min": null,
          "notes": null,
          "typ": null,
          "unit": "V"
        }
      ]
    },
    "compliance": [],
    "description": "150-kHz, 3-A adjustable step-down (buck) voltage regulator",
    "esd": {
      "HBM": [
        {
          "condition": "Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001; rating is \u00b12000 V",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.2 ESD Ratings"
          },
          "max": null,
          "min": null,
          "notes": null,
          "typ": 2000,
          "unit": "V"
        }
      ]
    },
    "family": "step-down switching regulator",
    "moisture_sensitivity": null,
    "package": {
      "body_mm": null,
      "code": "TO-263-5 (KTT)",
      "evidence": {
        "confidence": "high",
        "method": "table",
        "page": 1,
        "section": "Package Information"
      },
      "pin_count": 5,
      "pitch_mm": null,
      "thermal_pad": true
    },
    "pin_relationships": [],
    "pinout": [
      {
        "absolute_max": null,
        "alt_functions": [],
        "description": "This is the positive input supply for the IC switching regulator. A suitable input bypass capacitor must be present at this pin to minimize voltage transients and to supply the switching currents required by the regulator.",
        "drive_strength": null,
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 4,
          "section": "Pin Configuration and Functions"
        },
        "is_5v_tolerant": null,
        "name": "VIN",
        "notes": null,
        "numbers": [
          "1"
        ],
        "power_domain": "VIN",
        "recommended": null,
        "subtype": null,
        "type": "power_in"
      },
      {
        "absolute_max": null,
        "alt_functions": [],
        "description": "Internal switch. The voltage at this pin switches between approximately (+VIN \u2212 VSAT) and approximately \u22120.5 V, with a duty cycle of VOUT / VIN. To minimize coupling to sensitive circuitry, the PCB copper area connected to this pin must be kept to a minimum.",
        "drive_strength": null,
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 4,
          "section": "Pin Configuration and Functions"
        },
        "is_5v_tolerant": null,
        "name": "Output",
        "notes": "PCB copper area connected to this pin must be kept to a minimum to reduce coupling to sensitive circuitry.",
        "numbers": [
          "2"
        ],
        "power_domain": "VIN",
        "recommended": null,
        "subtype": "switching",
        "type": "output"
      },
      {
        "absolute_max": null,
        "alt_functions": [],
        "description": "Circuit ground.",
        "drive_strength": null,
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 4,
          "section": "Pin Configuration and Functions"
        },
        "is_5v_tolerant": null,
        "name": "Ground",
        "notes": null,
        "numbers": [
          "3"
        ],
        "power_domain": null,
        "recommended": null,
        "subtype": null,
        "type": "power_in"
      },
      {
        "absolute_max": null,
        "alt_functions": [],
        "description": "Senses the regulated output voltage to complete the feedback loop.",
        "drive_strength": null,
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 4,
          "section": "Pin Configuration and Functions"
        },
        "is_5v_tolerant": null,
        "name": "Feedback",
        "notes": null,
        "numbers": [
          "4"
        ],
        "power_domain": null,
        "recommended": null,
        "subtype": null,
        "type": "input"
      },
      {
        "absolute_max": null,
        "alt_functions": [],
        "description": "Allows the switching regulator circuit to be shut down using logic signals thus dropping the total input supply current to approximately 80 \u00b5A. Pulling this pin below a threshold voltage of approximately 1.3 V turns the regulator on, and pulling this pin above 1.3 V (up to a maximum of 25 V) shuts the regulator down. If this shutdown feature is not required, the ON/OFF pin can be wired to the ground pin or it can be left open. In either case, the regulator will be in the ON condition.",
        "drive_strength": null,
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 4,
          "section": "Pin Configuration and Functions"
        },
        "is_5v_tolerant": null,
        "name": "ON/OFF",
        "notes": "Active-low shutdown. Pull below ~1.3 V to enable, above ~1.3 V (max 25 V) to shut down. Tie to GND or leave floating to keep regulator ON.",
        "numbers": [
          "5"
        ],
        "power_domain": "VIN",
        "recommended": null,
        "subtype": null,
        "type": "input"
      }
    ],
    "recommended_operating": {
      "TA": [
        {
          "condition": "Operating ambient temperature",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.3 Operating Conditions"
          },
          "max": 125,
          "min": -40,
          "notes": null,
          "typ": null,
          "unit": "\u00b0C"
        }
      ],
      "VIN": [
        {
          "condition": "Supply voltage",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.3 Operating Conditions"
          },
          "max": 40,
          "min": 4.5,
          "notes": null,
          "typ": null,
          "unit": "V"
        }
      ]
    },
    "thermal": {
      "theta_ja": [
        {
          "condition": "TO-263 (KTW), 5 pins, tab soldered to 0.5 in\u00b2 of 1-oz copper, single-sided board",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.4 Thermal Information"
          },
          "max": null,
          "min": null,
          "notes": "TO-263 (KTT/KTW) variant; thermal impedance per JESD 51-7",
          "typ": 50,
          "unit": "\u00b0C/W"
        },
        {
          "condition": "TO-263 (KTW), 5 pins, larger copper area",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.4 Thermal Information"
          },
          "max": null,
          "min": null,
          "notes": "TO-263 variant, increased copper",
          "typ": 30,
          "unit": "\u00b0C/W"
        },
        {
          "condition": "TO-263 (KTW), 5 pins, largest copper area",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.4 Thermal Information"
          },
          "max": null,
          "min": null,
          "notes": "TO-263 variant, maximum copper",
          "typ": 20,
          "unit": "\u00b0C/W"
        },
        {
          "condition": "TO-220 (NDZ), 5 pins, mounted vertically, leads soldered to 1 in\u00b2 of 1-oz copper, 4-layer JEDEC board, no heatsink",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.4 Thermal Information"
          },
          "max": null,
          "min": null,
          "notes": "TO-220 (NDZ/NDH) variant",
          "typ": 50,
          "unit": "\u00b0C/W"
        }
      ],
      "theta_jc": [
        {
          "condition": "Junction-to-case (top), TO-263 (KTW)",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.4 Thermal Information"
          },
          "max": null,
          "min": null,
          "notes": null,
          "typ": 2,
          "unit": "\u00b0C/W"
        },
        {
          "condition": "Junction-to-case (top), TO-220 (NDZ)",
          "evidence": {
            "confidence": "high",
            "method": "table",
            "page": 5,
            "section": "7.4 Thermal Information"
          },
          "max": null,
          "min": null,
          "notes": null,
          "typ": 2,
          "unit": "\u00b0C/W"
        }
      ]
    }
  },
  "categories": [
    "regulator"
  ],
  "extraction": {
    "extracted_at": "2026-04-25T20:40:19Z",
    "extractor_schema_version": "1.0",
    "extractor_scout": null,
    "plan_ref": "LM2596-ADJ.plan.json",
    "quality_score": 98
  },
  "regulator": {
    "cin_min": [
      {
        "condition": "Aluminum electrolytic, 50 V, low-ESR (Nichicon PL series); recommended in adjustable typical application",
        "evidence": {
          "confidence": "high",
          "method": "prose",
          "page": 27,
          "section": "9.2.2 LM2596 Adjustable Output Series Buck Regulator"
        },
        "max": null,
        "min": null,
        "notes": null,
        "typ": 0.00047,
        "unit": "F"
      }
    ],
    "compensation_pin": null,
    "cout_min": [
      {
        "condition": "Low-ESR electrolytic range; low-ESR solid tantalum alternative is 10 \u00b5F to 470 \u00b5F",
        "evidence": {
          "confidence": "high",
          "method": "prose",
          "page": 24,
          "section": "9.2.1.2.3 Output Capacitor Selection (COUT)"
        },
        "max": 0.00082,
        "min": 8.2e-05,
        "notes": null,
        "typ": null,
        "unit": "F"
      }
    ],
    "dropout": null,
    "enable_pin": "5",
    "feedback_pin": "4",
    "inductor_range": [
      {
        "condition": "Inductor selection nomograph for LM2596-ADJ (Figure 9-8), 0.6 A to 3 A load, Vin up to 40 V",
        "evidence": {
          "confidence": "high",
          "method": "curve",
          "page": 20,
          "section": "9.1.5 Inductor Selection (Figure 9-8 LM2596-ADJ)"
        },
        "max": 0.00015,
        "min": 2.2e-05,
        "notes": null,
        "typ": null,
        "unit": "H"
      }
    ],
    "iout_max": [
      {
        "condition": "DC output load current, full operating range",
        "evidence": {
          "confidence": "high",
          "method": "prose",
          "page": 1,
          "section": "1 Features / 3 Description"
        },
        "max": 3,
        "min": null,
        "notes": null,
        "typ": null,
        "unit": "A"
      }
    ],
    "line_regulation": null,
    "load_regulation": null,
    "power_good_pin": null,
    "psrr": null,
    "reference_voltage": [
      {
        "condition": "VFB feedback voltage, Vout programmed for 3 V, TJ = 25\u00b0C",
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 6,
          "section": "7.8 Electrical Characteristics \u2013 Adjustable Voltage Version"
        },
        "max": 1.267,
        "min": 1.193,
        "notes": null,
        "typ": 1.23,
        "unit": "V"
      }
    ],
    "sequencing": null,
    "stability_conditions": {
      "cap_types_allowed": [
        "electrolytic",
        "tantalum"
      ],
      "esr_range": null,
      "evidence": {
        "confidence": "high",
        "method": "prose",
        "page": 24,
        "section": "9.2.1.2.3 Output Capacitor Selection (COUT)"
      },
      "notes": "Output capacitor must be low-ESR electrolytic (82 \u00b5F to 820 \u00b5F) or low-ESR solid tantalum (10 \u00b5F to 470 \u00b5F). TI does not recommend electrolytic capacitors below \u221225\u00b0C; solid tantalum recommended below \u221225\u00b0C. Caution with ceramics on input."
    },
    "switching_freq": [
      {
        "condition": "Oscillator frequency, TJ = 25\u00b0C",
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 7,
          "section": "7.9 Electrical Characteristics \u2013 All Output Voltage Versions"
        },
        "max": 173000,
        "min": 127000,
        "notes": null,
        "typ": 150000,
        "unit": "Hz"
      }
    ],
    "topology": "buck",
    "vin_range": [
      {
        "condition": "Adjustable version operating range",
        "evidence": {
          "confidence": "high",
          "method": "table",
          "page": 6,
          "section": "7.8 Electrical Characteristics \u2013 Adjustable Voltage Version"
        },
        "max": 40,
        "min": 4.5,
        "notes": null,
        "typ": null,
        "unit": "V"
      }
    ],
    "vout_range": [
      {
        "condition": "\u00b14% over line and load, adjustable version",
        "evidence": {
          "confidence": "high",
          "method": "prose",
          "page": 1,
          "section": "1 Features"
        },
        "max": 37,
        "min": 1.2,
        "notes": null,
        "typ": null,
        "unit": "V"
      }
    ]
  },
  "schema_version": {
    "base": "1.0",
    "categories": {
      "regulator": "0.3"
    }
  },
  "source": {
    "datasheet_date": "November 1999 \u2013 Revised March 2023",
    "datasheet_revision": "SNVS124G",
    "family_ref": null,
    "local_path": "datasheets/LM2596-ADJ.pdf",
    "manufacturer": "Texas Instruments",
    "mpn": "LM2596-ADJ",
    "page_count": 36,
    "sha256": "sha256:a3ecb47736422dc1579c85ba229d85ef70be3da706a0524beb9c85753073ce26",
    "source_url": null
  }
}