component
MC33063AP
Public Made by Adomby adom
Texas Instruments DC-DC Converters, PDIP-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
markdownMC33063AP
Texas Instruments · DC-DC Converters · PDIP-8
MC33063AP from Texas Instruments, in a PDIP-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 | bidirectional | High-current internal switch collector input (absolute max 40 V, switch current up to 1.5 A). |
| 2 | Switch Emitter | bidirectional | High-current internal switch emitter output (absolute max 40 V). |
| 3 | Timing Capacitor | passive | Attach a timing capacitor to change the switching frequency. |
| 4 | GND | power_in | Ground. |
| 5 | Comparator Inverting Input | input | Attach to a resistor divider network to create a feedback loop; comparator threshold is 1.25 V typical. |
| 6 | VCC | power_in | Logic supply voltage, tie to VIN; recommended operating range 3 V to 40 V. |
| 7 | Ipk | input | Current-limit sense input; current-limit sense voltage is 300 mV typical. |
| 8 | Driver Collector | bidirectional | Darlington pair driving transistor collector input (absolute max 100 mA driver collector current, 40 V). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-8 |
| Category | Power Supply Chip |
| 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 |
|---|---|---|---|---|---|---|---|
| Oscillator frequency | fosc | 24 | 33 | 42 | kHz | VPIN5 = 0 V, CT = 1 nF, TA = 25°C | 4 |
| Charge current | Ichg | 24 | 35 | 42 | μA | VCC = 5 V to 40 V, TA = 25°C | 4 |
| Discharge current | Idischg | 140 | 220 | 260 | μA | VCC = 5 V to 40 V, TA = 25°C | 4 |
| Discharge-to-charge current ratio | Idischg/Ichg | 5.2 | 6.5 | 7.5 | VPIN7 = VCC, TA = 25°C | 4 | |
| Current-limit sense voltage | VIpk | 250 | 300 | 350 | mV | Idischg = Ichg, TA = 25°C | 4 |
| Saturation voltage, Darlington connection | VCE(sat) | 1 | 1.3 | V | ISW = 1 A, pins 1 and 8 connected, full range | 5 | |
| Saturation voltage, non-Darlington connection | VCE(sat) | 0.45 | 0.7 | V | ISW = 1 A, RPIN8 = 82 Ω to VCC, forced β ∼ 20, full range | 5 | |
| DC current gain | hFE | 50 | 75 | ISW = 1 A, VCE = 5 V, TA = 25°C | 5 | ||
| Collector off-state current | IC(off) | 0.01 | 100 | μA | VCE = 40 V, full range | 5 | |
| Comparator threshold voltage (25°C) | Vth | 1.225 | 1.25 | 1.275 | V | TA = 25°C | 5 |
| Comparator threshold voltage (full range) | Vth | 1.21 | 1.29 | V | Full range | 5 | |
| Threshold-voltage line regulation | ΔVth | 1.4 | 5 | mV | VCC = 5 V to 40 V, full range | 5 | |
| Input bias current | IIB | -20 | -400 | nA | VIN = 0 V, full range | 5 | |
| Supply current | ICC | 4 | mA | VCC = 5 V to 40 V, CT = 1 nF, VPIN7 = VCC, VPIN5 > Vth, VPIN2 = GND, all other pins open, full range | 5 | ||
| Supply voltage | VCC | 3 | 40 | V | 4 | ||
| Operating free-air temperature | TA | -40 | 85 | °C | MC33063A | 4 | |
| Supply voltage | VCC | 40 | V | 4 | |||
| Comparator inverting input voltage range | VIR | -0.3 | 40 | V | 4 | ||
| Switch collector voltage | VC(switch) | 40 | V | 4 | |||
| Switch emitter voltage | VE(switch) | 40 | V | VPIN1 = 40 V | 4 | ||
| Switch collector to switch emitter voltage | VCE(switch) | 40 | V | 4 | |||
| Driver collector voltage | VC(driver) | 40 | V | 4 | |||
| Driver collector current | IC(driver) | 100 | mA | 4 | |||
| Switch current | ISW | 1.5 | A | 4 | |||
| Operating virtual junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature range | Tstg | -65 | 150 | °C | 4 | ||
| Junction-to-ambient thermal resistance | RθJA | 85 | °C/W | P package, 8 pins | 4 | ||
| ESD HBM | V(ESD) | 2500 | V | Human body model, all pins | 4 | ||
| ESD CDM | V(ESD) | 1500 | V | Charged device model, all pins | 4 |
CAD (KiCad official)
- Symbol:
MC33063AP - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files:
mc33063ap-etched.step/mc33063ap-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc33063ap.step/mc33063ap.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
487d41f547e47a28, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).