component
MC34063AP1G
Public Made by Adomby adom
onsemi DC-DC Converters, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMC34063AP1G
onsemi · DC-DC Converters · DIP-8
MC34063AP1G from onsemi, in a DIP-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 at 40 Vdc maximum switch collector voltage with switch current up to 1.5 A. |
| 2 | Switch Emitter | passive | Emitter of the internal output switch, rated at 40 Vdc maximum switch emitter voltage (VPin 1 = 40 V). |
| 3 | Timing Capacitor | passive | Connection for the timing capacitor CT that sets the oscillator frequency and on/off times. |
| 4 | GND | power_in | Ground reference pin for the device. |
| 5 | Comparator Inverting Input | input | Inverting input of the comparator against the internal 1.25 V reference, with comparator input voltage range of -0.3 V to +40 Vdc. |
| 6 | VCC | power_in | Supply pin; power supply voltage is rated at 40 Vdc maximum, with operation from 3.0 V to 40 V input. |
| 7 | Ipk Sense | input | Current-limit sense input; the current limit sense voltage is 300 mV typical (250 mV to 350 mV). |
| 8 | Driver Collector | output | Collector of the internal driver stage, rated at 40 Vdc maximum driver collector voltage and 100 mA maximum driver collector current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | DIP-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 |
|---|---|---|---|---|---|---|---|
| Frequency (VPin 5 = 0 V, CT = 1.0 nF, TA = 25°C) | 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, Note 6) | VCE(sat) | 0.45 | 0.7 | V | ISW = 1.0 A, RPin 8 = 82 to VCC, Forced beta 20 (symbols lost in extraction) | 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 (TA = 25°C) | 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 (MC34063 row) | 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 | |||
| Storage Temperature Range | Tstg | -65 | 150 | °C | 2 | ||
| Power Dissipation (P, P1 suffix, PDIP-8) | PD | 1.25 | W | TA = 25°C | 2 | ||
| Thermal Resistance Junction-to-Ambient (P, P1 suffix, PDIP-8) | RJA | 115 | °C/W | 2 | |||
| Operating Junction Temperature | TJ | 150 | °C | 2 | |||
| Operating Ambient Temperature Range | TA | 0 | 70 | °C | MC34063A, SC34063A | 2 | |
| Operation Input Voltage Range (Features) | 3 | 40 | V | Features bullet: Operation from 3.0 V to 40 V Input | 1 |
CAD (KiCad official)
- Symbol:
MC34063AP1G - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
mc34063ap1g-etched.step/mc34063ap1g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc34063ap1g.step/mc34063ap1g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (15 pp, sha256
457d21fce6f3fe98, retrieved 2026-10-14, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).