component
MC34063EBN
Public Made by Adomby adom
STMicroelectronics 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
markdownMC34063EBN
STMicroelectronics · DC-DC Converters · DIP-8
MC34063EBN from STMicroelectronics, in a DIP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SWC | output | Collector of output switch rated for 1.5 A output current with saturation voltage of 1.3 V typical at 1 A. |
| 2 | SWE | output | Emitter terminal of the internal output switch. |
| 3 | TC | passive | Timing capacitor connection setting oscillator frequency; 1 nF typical produces 33 kHz. |
| 4 | GND | power_in | Ground reference terminal. |
| 5 | CII | input | Inverting input of comparator with 1.25 V ±2% reference threshold for output voltage feedback; input voltage range -0.3 to 40 V. |
| 6 | VCC | power_in | Positive power supply input; operating range 3 to 40 V, absolute maximum 50 V. |
| 7 | IPK | input | Current limit sense input with 300 mV typical threshold voltage for active current limiting. |
| 8 | DRC | output | Voltage driver collector output for switch base drive in Darlington configuration; maximum 100 mA, 40 V maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| 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 | fOSC | 24 | 33 | 42 | kHz | VPIN5 = 0V, CT = 1 nF, TA = 25°C | 6 |
| Charge current | ICHG | 24 | 33 | 42 | µA | VCC = 5 to 40V, TA = 25°C | 6 |
| Discharge current | IDISCHG | 140 | 200 | 260 | µA | VCC = 5 to 40V, TA = 25°C | 6 |
| Discharge to charge current ratio | IDISCHG/ICHG | 5.2 | 6.2 | 7.5 | µA | PIN 7 = VCC, TA = 25°C | 6 |
| Current limit sense voltage | VIPK(sense) | 250 | 300 | 350 | mV | ICHG = IDISCHG, TA = 25°C | 6 |
| Saturation voltage, Darlington connection | VCE(sat) | 1 | 1.3 | V | ISW = 1 A, PIN 1, 8 connected | 6 | |
| Saturation voltage | VCE(sat) | 0.45 | 0.7 | V | ISW = 1 A, RPIN8 = 82 to VCC, Forced ~ 20 | 6 | |
| DC current gain | hFE | 50 | 120 | ISW = 1 A, VCE = 5 V, TA = 25°C | 6 | ||
| Collector off-state current | IC(off) | 0.01 | 100 | µA | VCE = 40 V | 6 | |
| Threshold voltage | VTH | 1.225 | 1.25 | 1.275 | V | TA = 25°C | 6 |
| Threshold voltage over temperature | VTH | 1.21 | 1.29 | V | TA = TLOW to THIGH | 6 | |
| Threshold voltage line regulation | Regline | 1 | 5 | mV | VCC = 3 to 40 V | 6 | |
| Input bias current | IIB | -5 | -400 | nA | VIN = 0 V | 6 | |
| Supply current (MC34063E) | ICC | 1.5 | 4 | mA | VCC = 5 to 40 V, CT = 1 nF, PIN 7 = VCC, VPIN5 > VTH, PIN 2 = GND, remaining pins open | 7 | |
| Absolute maximum power supply voltage | VCC | 50 | V | 5 | |||
| Comparator input voltage range | VIR | -0.3 | 40 | V | 5 | ||
| Switch collector voltage | VSWC | 40 | V | 5 | |||
| Switch emitter voltage | VSWE | 40 | V | VSWC = 40V | 5 | ||
| Switch collector to emitter voltage | VCE | 40 | V | 5 | |||
| Driver collector voltage | VDC | 40 | V | 5 | |||
| Driver collector current | IDC | 100 | mA | 5 | |||
| Switch current | ISW | 1.5 | A | 5 | |||
| Power dissipation | PTOT | 1.25 | W | TA = 25°C, DIP-8 | 5 | ||
| Operating junction temperature | TJ | 150 | °C | 5 | |||
| Storage temperature range | TSTG | -40 | 150 | °C | 5 | ||
| Power supply operating voltage | VCC | 3 | 40 | V | 1 | ||
| Output switching frequency operation | 100 | kHz | 1 | ||||
| Operating ambient temperature range (EB series) | TOP | -40 | 125 | °C | for EB series | 5 | |
| Supply start-up voltage (MC34063E) | VSTART-UP | 1.5 | V | TA = 25°C, CT = 1 µF, PIN 5 = 0; for MC34063E | 7 | ||
| Thermal resistance junction-ambient (DIP-8) | RthJA | 100 | °C/W | DIP-8; depends on PCB thermal design | 5 | ||
| Thermal resistance junction-case (DIP-8) | RthJC | 42 | °C/W | DIP-8 | 5 |
CAD (KiCad official)
- Symbol:
MC34063EBN - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
mc34063ebn-etched.step/mc34063ebn-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc34063ebn.step/mc34063ebn.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (23 pp, sha256
90208f64b7a5ca67, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).