component
MC34063AGD
Public Made by Adomby adom
HTC Korea TAEJIN Tech DC-DC Converters, SOP-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
markdownMC34063AGD
HTC Korea TAEJIN Tech · DC-DC Converters · SOP-8
MC34063AGD from HTC Korea TAEJIN Tech, in a SOP-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 switch transistor, with the switch rated for up to 1.5A (ISW max) and a 40V collector voltage limit. |
| 2 | Switch Emitter | output | Emitter of the internal switch transistor, rated at 40V maximum (VSWE) and typically connected to GND through the external current sense resistor. |
| 3 | Timing Capacitor | passive | Timing capacitor connection that sets the oscillator switching frequency (datasheet test condition uses CT = 1nF for FOSC of 24 to 42kHz). |
| 4 | GND | power_in | Ground pin for all internal circuits. |
| 5 | Comparator Inverting Input | input | Inverting input of the internal comparator, with a comparator input voltage range of -0.3V to 40V and a threshold voltage of 1.25V typical. |
| 6 | VCC | power_in | Supply voltage pin, with a recommended operating range of 3V to 40V. |
| 7 | IPK Sense | input | Peak current sense input that monitors the voltage drop across an external sense resistor to limit the switch peak current, with a current limit sense voltage of 250mV to 350mV (300mV typical). |
| 8 | Driver Collector | output | Collector of the internal driver transistor, rated at 40V maximum with a driver collector current of 100mA maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOP-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 |
|---|---|---|---|---|---|---|---|
| Hysteresis-free FOSC Frequency | FOSC | 24 | 33 | 42 | KHz | VPIN5=0V, CT=1nF, TA=25℃ | 4 |
| Charge Current | ICHG | 24 | 35 | 42 | ㎂ | VCC=5 to 40V, TA=25℃ | 4 |
| Discharge Current | IDISCHG | 140 | 220 | 260 | ㎂ | VCC=5 to 40V, TA=25℃ | 4 |
| Discharge to Charge Current Ratio | IDISCHG/ICHG | 5.2 | 6.5 | 7.5 | Pin 7= VCC, TA=25℃ | 4 | |
| Current Limit Sense Voltage | VIPK(SENSE) | 250 | 300 | 350 | mV | ICHG=IDISCHG, TA=25℃ | 4 |
| Saturation Voltage, Darlington connection | VCE(SAT) | 1 | 1.3 | V | ISW=1A, Pins 1,8 connected | 4 | |
| Saturation Voltage | VCE(SAT) | 0.45 | 0.7 | V | ISW=1A, RPIN8=82Ω to VCC, Forced β ~ 20 | 4 | |
| DC Current Gain | hFE | 50 | 75 | ISW=1A, VCE=5V, TA=25℃ | 4 | ||
| Collector Off-State Current | IC(OFF) | 1 | 100 | ㎂ | VCE= 40V | 4 | |
| Threshold Voltage | VTH | 1.225 | 1.25 | 1.275 | V | TA=25℃ | 4 |
| Threshold Voltage (over temperature) | VTH | 1.21 | 1.29 | V | TA=TLOW to THIGH | 4 | |
| Threshold Voltage Line Regulation | REGLINE | 1.4 | 5 | mV | VCC= 3 to 40V | 4 | |
| Input Bias Current | IIB | -20 | -400 | nA | VIN= 0V | 4 | |
| Supply Current | ICC | 1.4 | 4 | mA | VCC= 5 to 40V, CT=1nF, Pin7= VCC, VPIN5>VTH, Pin2=GND, remaining pins open | 4 | |
| Supply Voltage | VCC | 3 | 40 | V | 2 | ||
| Operating Junction Temperature | TJ | -40 | 125 | °C | 2 | ||
| Operating Ambient Temperature | TA | -40 | 125 | °C | 2 | ||
| Power Supply Voltage | VCC | 40 | V | 1 | |||
| Comparator Input Voltage Range | VIR | -0.3 | 40 | V | 1 | ||
| Switch Collector Voltage | VSWC | 40 | V | 1 | |||
| Switch Emitter Voltage | VSWE | 40 | V | VSWC=40V | 1 | ||
| Switch Collector to Emitter Voltage | VCE | 40 | V | 1 | |||
| Driver Collector Voltage | Vdc | 40 | V | 1 | |||
| Driver Collector Current | Idc | 100 | mA | 1 | |||
| Switch Current | ISW | 1.5 | A | 1 | |||
| Junction Temperature Range | TJ | -40 | 150 | °C | 2 | ||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 2 |
CAD (KiCad official)
- Symbol:
MC34063AGD - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
mc34063agd-etched.step/mc34063agd-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc34063agd.step/mc34063agd.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (9 pp, sha256
a07e3233bfd2e505, retrieved 2026-10-16, 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).