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MC79L05ABDR2G
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onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.md+68docs/hero.pngdocs/mc79l05abdr2g-datasheet.pdf+4491mc79l05abdr2g-etched.glbmc79l05abdr2g-hero.glbmc79l05abdr2g-hero.overlay.json+260mc79l05abdr2g.glbmc79l05abdr2g.kicad_mod+300mc79l05abdr2g.kicad_sym+45mc79l05abdr2g.lbr+130mc79l05abdr2g.step+3030package.json+194page.json+200viewers/footprint.html+1viewers/symbol.html+1README.mdadded+68@@ -0,0 +1,68 @@+# MC79L05ABDR2G++**onsemi** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8++MC79L05ABDR2G from onsemi, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | Vout | power_out | Regulated negative output, nominally −5.0 V, held between −4.75 V and −5.25 V over the stated input and load conditions, with a 0.1 µF output capacitor CO recommended to improve stability and transient response. |+| 2 | Vin | power_in | Unregulated negative input, with a maximum input voltage of −30 Vdc for the −5 V device and an input of typically at least 2.0 V above the output voltage needed even at the ripple low point. |+| 3 | Vin | power_in | Unregulated negative input (same net as pin 2 per the input pin group), limited to −30 Vdc maximum for the −5 V device and bypassed with a 0.33 µF capacitor CI when the regulator is far from the supply filter. |+| 4 | NC | unconnected | No connection; the datasheet pinout lists this pin as NC and gives no electrical function for it. |+| 5 | GND | power_in | Common ground that must be shared between the input and output voltages, with ground-loop and lead-resistance drops minimized because the regulator has no external sense lead. |+| 6 | Vin | power_in | Unregulated negative input (same net as pin 2 per the input pin group), limited to −30 Vdc maximum for the −5 V device. |+| 7 | Vin | power_in | Unregulated negative input (same net as pin 2 per the input pin group), limited to −30 Vdc maximum for the −5 V device. |+| 8 | NC | unconnected | No connection; the datasheet pinout lists this pin as NC and gives no electrical function for it. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| Output Voltage (TJ = +25°C) | VO | -4.8 | -5 | -5.2 | Vdc | TJ = +25°C | 2 |+| Output Voltage | VO | -4.75 | | -5.25 | Vdc | −7.0 Vdc ≥ VI ≥ −20 Vdc, 1.0 mA ≤ IO ≤ 40 mA; VI = −10 Vdc, 1.0 mA ≤ IO ≤ 70 mA | 2 |+| Input Regulation | Regline | | | 150 | mV | TJ = +25°C; −7.0 Vdc ≥ VI ≥ −20 Vdc | 2 |+| Input Regulation | Regline | | | 100 | mV | TJ = +25°C; −8.0 Vdc ≥ VI ≥ −20 Vdc | 2 |+| Load Regulation | Regload | | | 60 | mV | TJ = +25°C, 1.0 mA ≤ IO ≤ 100 mA | 2 |+| Load Regulation | Regload | | | 30 | mV | 1.0 mA ≤ IO ≤ 40 mA | 2 |+| Input Bias Current (TJ = +25°C) | IIB | | | 6 | mA | TJ = +25°C | 2 |+| Input Bias Current (TJ = +125°C) | IIB | | | 5.5 | mA | TJ = +125°C | 2 |+| Input Bias Current Change | IIB | | | 1.5 | mA | −8.0 Vdc ≥ VI ≥ −20 Vdc | 2 |+| Input Bias Current Change | IIB | | | 0.1 | mA | 1.0 mA ≤ IO ≤ 40 mA | 2 |+| Ripple Rejection | RR | 41 | 49 | | dB | −8.0 ≥ VI ≥ −18 Vdc, f = 120 Hz, TJ = +25°C | 2 |+| Input Voltage (−5 V device) | VI | -30 | | | Vdc | MC79L05 (−5 V) device | 2 |+| Storage Temperature Range | Tstg | -65 | | 150 | °C | | 2 |+| Junction Temperature | TJ | | | 150 | °C | | 2 |+| Thermal Resistance, Junction-to-Ambient (SOIC-8) | RJA | | | 180 | °C/W | Case 751 SOIC-8, minimum recommended pad size | 2 |+| Thermal Resistance, Junction-to-Case (SOIC-8) | RJC | | | 45 | °C/W | Case 751 SOIC-8 | 2 |+| Operating Junction Temperature Range (MC79L05AB) | TJ | -40 | | 125 | °C | MC79LXXAB | 2 |++## CAD (KiCad official)++- Symbol: `MC79L05ABDR2G`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `mc79l05abdr2g-etched.step` / `mc79l05abdr2g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc79l05abdr2g.step` / `mc79l05abdr2g.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588911402328707072) (14 pp, sha256 `115a59773830cb30`, retrieved 2026-10-18, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/mc79l05abdr2g-datasheet.pdf)
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inexpensive, easy−to−use devices suitable for numerous applications
requiring up to 100 mA. Like the higher powered MC7900 Series
negative regulators, this series features thermal shutdown and current
limiting, making them remarkably rugged. In most applications, no
external components are required for operation.</rdf:li>+ </rdf:Alt>+ </dc:description>+ <xmp:CreateDate>2021-04-15T13:59:18-07:00</xmp:CreateDate>+ <xmp:CreatorTool>BroadVision, Inc.</xmp:CreatorTool>+ <xmp:ModifyDate>2021-04-16T12:29:11-07:00</xmp:ModifyDate>+ <xmp:MetadataDate>2021-04-16T12:29:11-07:00</xmp:MetadataDate>+ <pdf:Producer>Acrobat Distiller 21.0 (Windows)</pdf:Producer>+ <pdf:Keywords/>+ <xmpMM:DocumentID>uuid:aca4059a-cf8a-4a47-9e4d-5e9109372b07</xmpMM:DocumentID>+ <xmpMM:InstanceID>uuid:52857c8a-bc44-4826-9372-013b4dd658aa</xmpMM:InstanceID>+ </rdf:Description>+ </rdf:RDF>+</x:xmpmeta>+ + + + + + + + + + + + + + + + + + + + + +<?xpacket end="w"?> +endstream+endobj+5 0 obj+<<+/Nums [8 22 0 R 11 23 0 R 13 24 0 R]+>>+endobj+7 0 obj+<<+/Annots [25 0 R 26 0 R]+/Contents [27 0 R 28 0 R 29 0 R 30 0 R 31 0 R 32 0 R 33 0 R 34 0 R]+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 35 0 R+/Rotate 0+/Type /Page+>>+endobj+8 0 obj+<<+/Annots 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