component
MC34063ADG
Public Made by Adomby adom
onsemi DC-DC Converters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+79@@ -0,0 +1,79 @@+# MC34063ADG++**onsemi** · DC-DC Converters · SOIC-8++MC34063ADG 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 | Switch Collector | output | Collector of the internal output switch, rated 40 V with switch current up to 1.5 A. |+| 2 | Switch Emitter | output | Emitter of the internal output switch, rated 40 V (VPin 1 = 40 V). |+| 3 | Timing Capacitor | passive | Timing capacitor connection that sets the oscillator frequency and duty cycle, with CT = 1.0 nF used in the stated test conditions. |+| 4 | GND | power_in | Ground reference for the device. |+| 5 | Inverting Input | input | Inverting input of the internal comparator, compared against the 1.25 V reference, with comparator input voltage range of -0.3 V to +40 V. |+| 6 | VCC | power_in | Supply voltage input, with power supply voltage rated 40 V maximum and operation from 3.0 V. |+| 7 | Ipk Sense | input | Current limit sense input, with current limit sense voltage of 250 mV to 350 mV (300 mV typical). |+| 8 | Driver Collector | output | Collector of the internal driver transistor, rated 40 V with driver collector current up to 100 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOIC-8 |+| Category | Power Management ICs |+| 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 |+|---|---|---|---|---|---|---|---|+| Frequency | fosc | 24 | 33 | 42 | kHz | VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C | 3 |+| Charge Current | Ichg | 24 | 35 | 42 | A | VCC = 5.0 V to 40 V, TA = 25°C | 3 |+| Discharge Current | Idischg | 140 | 220 | 260 | A | VCC = 5.0 V to 40 V, TA = 25°C | 3 |+| Discharge to Charge Current Ratio | Idischg/Ichg | 5.2 | 6.5 | 7.5 | − | Pin 7 to VCC, TA = 25°C | 3 |+| Current Limit Sense Voltage | Vipk(sense) | 250 | 300 | 350 | mV | Ichg = Idischg, TA = 25°C | 3 |+| Saturation Voltage, Darlington Connection | VCE(sat) | | 1 | 1.3 | V | ISW = 1.0 A, Pins 1, 8 connected | 3 |+| Saturation Voltage (non-Darlington) | VCE(sat) | | 0.45 | 0.7 | V | ISW = 1.0 A, RPin 8 = 82 Ω to VCC, Forced β = 20 | 3 |+| DC Current Gain | hFE | 50 | 75 | | − | ISW = 1.0 A, VCE = 5.0 V, TA = 25°C | 3 |+| Collector Off-State Current | IC(off) | | 0.01 | 100 | A | VCE = 40 V | 3 |+| Threshold Voltage | Vth | 1.225 | 1.25 | 1.275 | V | TA = 25°C | 3 |+| Threshold Voltage over temperature | Vth | 1.21 | | 1.29 | V | TA = Tlow to Thigh | 3 |+| Threshold Voltage Line Regulation | Regline | | 1.4 | 5 | mV | VCC = 3.0 V to 40 V | 3 |+| Input Bias Current | IIB | | -20 | -400 | nA | Vin = 0 V | 3 |+| Supply Current | ICC | | | 4 | mA | VCC = 5.0 V to 40 V, CT = 1.0 nF, Pin 7 = VCC, VPin 5 > Vth, Pin 2 = GND, remaining pins open | 3 |+| Power Supply Voltage | VCC | | | 40 | Vdc | | 2 |+| Comparator Input Voltage Range | VIR | -0.3 | | 40 | Vdc | | 2 |+| Switch Collector Voltage | VC(switch) | | | 40 | Vdc | | 2 |+| Switch Emitter Voltage | VE(switch) | | | 40 | Vdc | VPin 1 = 40 V | 2 |+| Switch Collector to Emitter Voltage | VCE(switch) | | | 40 | Vdc | | 2 |+| Driver Collector Voltage | VC(driver) | | | 40 | Vdc | | 2 |+| Driver Collector Current | IC(driver) | | | 100 | mA | | 2 |+| Switch Current | ISW | | | 1.5 | A | | 2 |+| Power Dissipation, SOIC package | PD | | | 625 | mW | TA = 25°C | 2 |+| Thermal Resistance Junction-to-Ambient, SOIC package | RθJA | | | 160 | °C/W | | 2 |+| Thermal Resistance Junction-to-Case, SOIC package | RθJC | | | 45 | °C/W | | 2 |+| Operating Junction Temperature | TJ | | | 150 | °C | | 2 |+| Operating Ambient Temperature Range | TA | 0 | | 70 | °C | MC34063A, SC34063A | 2 |+| Storage Temperature Range | Tstg | -65 | | 150 | °C | | 2 |++## CAD (KiCad official)++- Symbol: `MC34063ADG`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)+- 3D model files: `mc34063adg-etched.step` / `mc34063adg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mc34063adg.step` / `mc34063adg.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://www.onsemi.com/pdf/datasheet/mc34063a-d.pdf) (17 pp, sha256 `ebc110d24bfb7a44`, retrieved 2026-10-26, tier: manufacturer)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `off` (skipped (clean text read)), 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/mc34063adg-datasheet.pdf)
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docs/mc34063adg-datasheet.pdfadded+5193@@ -0,0 +1,9662 @@+%PDF-1.4+%����+1 0 obj+<<+/Type /Catalog+/Version /1.6+/Pages 2 0 R+/AcroForm 3 0 R+/Metadata 4 0 R+/PageLabels 5 0 R+>>+endobj+6 0 obj+<<+/Author (zbjrpg)+/CreationDate (D:20190913095205+08'00')+/Creator (BroadVision, Inc.)+/Keywords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odDate (D:20200512063451+08'00')+/Producer (Acrobat Distiller 19.0 \(Windows\))+/Title (Inverting Regulators - Buck, Boost, Switching 1.5 A)+>>+endobj+2 0 obj+<<+/Type /Pages+/Kids [7 0 R 8 0 R 9 0 R 10 0 R 11 0 R 12 0 R 13 0 R 14 0 R 15 0 R 16 0 R+17 0 R 18 0 R 19 0 R 20 0 R 21 0 R 22 0 R 23 0 R]+/Count 17+>>+endobj+3 0 obj+<<+/DA (/Helv 0 Tf 0 g )+/DR 24 0 R+/Fields []+>>+endobj+4 0 obj+<<+/Length 5149+/Subtype /XML+/Type /Metadata+>>+stream +<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>+<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.6-c016 91.163616, 2018/10/29-16:58:49 ">+ <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">+ <rdf:Description rdf:about=""+ xmlns:xmp="http://ns.adobe.com/xap/1.0/"+ xmlns:pdf="http://ns.adobe.com/pdf/1.3/"+ xmlns:dc="http://purl.org/dc/elements/1.1/"+ xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/">+ <xmp:CreateDate>2019-09-13T09:52:05+08:00</xmp:CreateDate>+ <xmp:CreatorTool>BroadVision, Inc.</xmp:CreatorTool>+ <xmp:ModifyDate>2020-05-12T06:34:51+08:00</xmp:ModifyDate>+ <xmp:MetadataDate>2020-05-12T06:34:51+08:00</xmp:MetadataDate>+ <pdf:Producer>Acrobat Distiller 19.0 (Windows)</pdf:Producer>+ <pdf:Keywords>The MC34063A Series is a monolithic control circuit containing the
primary functions required for DC−to−DC converters. These devices
consist of an internal temperature compensated reference, comparator,
controlled duty cycle oscillator with an active current limit circuit,
driver and high current output switch. This series was specifically
designed to be incorporated in Step−Down and Step−Up and
Voltage−Inverting applications with a minimum number of external
components. Refer to Application Notes AN920A/D and AN954/D
for additional design information.</pdf:Keywords>+ <dc:format>application/pdf</dc:format>+ <dc:title>+ <rdf:Alt>+ <rdf:li xml:lang="x-default">Inverting Regulators - Buck, Boost, Switching 1.5 A</rdf:li>+ </rdf:Alt>+ </dc:title>+ <dc:creator>+ <rdf:Seq>+ <rdf:li>zbjrpg</rdf:li>+ </rdf:Seq>+ </dc:creator>+ <dc:subject>+ <rdf:Bag>+ <rdf:li>The MC34063A Series is a monolithic control circuit containing the</rdf:li>+ <rdf:li>primary functions required for DC−to−DC converters. These devices</rdf:li>+ <rdf:li>consist of an internal temperature compensated reference</rdf:li>+ <rdf:li>comparator</rdf:li>+ <rdf:li>controlled duty cycle oscillator with an active current limit circuit</rdf:li>+ <rdf:li>driver and high current output switch. This series was specifically</rdf:li>+ <rdf:li>designed to be incorporated in Step−Down and Step−Up and</rdf:li>+ <rdf:li>Voltage−Inverting applications with a minimum number of external</rdf:li>+ <rdf:li>components. 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