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MIC39301S-3.3
Public Made by Adomby adom
HGSEMI Linear Voltage Regulators (LDO), TO-263-5. 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
markdownMIC39301S-3.3
HGSEMI · Linear Voltage Regulators (LDO) · TO-263-5
MIC39301S-3.3 from HGSEMI, in a TO-263-5. 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 | EN | input | CMOS/TTL-compatible enable control input; logic high = enable, logic low or open = shutdown. |
| 2 | IN | power_in | Supply input, +16V maximum supply. |
| 3 | GND | power_in | Ground pin, internally connected to the TAB. |
| 4 | OUT | power_out | Regulator output. |
| 5 | FLG | output | Open-collector error flag output that signals undervoltage and overcurrent conditions. |
| 6 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TO-263-5 |
| Category | Power Management ICs |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage accuracy (initial) | VOUT | -1 | 1 | % | 10mA | 6 | |
| Output Voltage accuracy (over line/load) | VOUT | -2 | 2 | % | 10mA ≤ IOUT ≤ 3A, VOUT+1V ≤ VIN ≤ 8V | 6 | |
| Line Regulation | 0.06 | 0.5 | % | IOUT=10mA, VOUT+1V ≤ VIN ≤ 8V | 6 | ||
| Load Regulation | 0.2 | 1 | % | VIN=VOUT+1V, 10mA | 6 | ||
| Output Voltage Temp. Coefficient | ΔVOUT/ΔT | 20 | 100 | ppm/°C | Note 5 | 6 | |
| Dropout Voltage | VDO | 80 | 200 | mV | IOUT=100mA, ΔVOUT=-1% | 6 | |
| Dropout Voltage | VDO | 200 | mV | IOUT=750mA, ΔVOUT=-1% | 6 | ||
| Dropout Voltage | VDO | 320 | mV | IOUT=1.5A, ΔVOUT=-1% | 6 | ||
| Dropout Voltage | VDO | 400 | 550 | mV | IOUT=3A, ΔVOUT=-1% | 6 | |
| Ground Current | IGND | 10 | 20 | mA | IOUT=750mA, VIN=VOUT=+1V | 6 | |
| Ground Current | IGND | 17 | mA | IOUT=1.5A, VIN=VOUT=+1V | 6 | ||
| Ground Current | IGND | 45 | mA | IOUT=3A, VIN=VOUT=+1V | 6 | ||
| Dropout Ground Pin Current | IGND(do) | 6 | mA | VIN ≤ VOUT(nominal)-0.5V, IOUT=10mA | 6 | ||
| Current Limit | IOUT(lim) | 4.5 | A | VOUT=0V, VIN=VOUT+1V | 6 | ||
| Enable Input Voltage logic low (off) | VEN | 0.8 | V | logic low (off) | 7 | ||
| Enable Input Voltage logic high (on) | VEN | 2.25 | V | logic (on) | 7 | ||
| Enable Input Current | IIN | 15 | 30 | µA | VEN=VIN | 7 | |
| Enable Input Current | IIN | 2 | µA | VEN=0.8V | 7 | ||
| Shutdown Output Current | IOUT(shdn) | 10 | 20 | µA | Note 8 | 7 | |
| Flag Output Leakage Current | IFLG(leak) | 0.01 | 1 | µA | VOH=16V | 7 | |
| Flag Output Low Voltage | VFLG(do) | 220 | 300 | mV | VIN=2.250V, IOL=250µA, Note 9 | 7 | |
| Flag Low Threshold | VFLG | 93 | % | % of VOUT | 7 | ||
| Flag High Threshold | VFLG | 99.2 | % | 7 | |||
| Flag Hysteresis | VFLG | 1 | % | 7 | |||
| Supply Voltage (absolute maximum) | VIN | -20 | 20 | V | 4 | ||
| Enable Voltage (absolute maximum) | VEN | 20 | V | 4 | |||
| Storage Temperature | TS | -65 | 150 | °C | 4 | ||
| Lead Temperature | 245 | °C | soldering, 10 sec | 4 | |||
| Supply Voltage (operating) | VIN | -2.25 | 16 | V | 4 | ||
| Enable Voltage (operating) | VEN | 16 | V | 4 | |||
| Operating Temperature | Ta | -40 | 125 | °C | 4 | ||
| Thermal Resistance Junction-to-Case TO263 | θJC | 5 | °C/W | TO263 | 4 |
CAD (KiCad official)
- Symbol:
MIC39301S-3.3 - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
mic39301s-3-3-etched.step/mic39301s-3-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mic39301s-3-3.step/mic39301s-3-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (16 pp, sha256
fb1e3af1d6c4f9ad, retrieved 2026-10-23, tier: lcsc) - 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).