component
HG1507MDT-3.3
Public Made by Adomby adom
HGSEMI DC-DC Converters, TO-252-4. 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
markdownHG1507MDT-3.3
HGSEMI · DC-DC Converters · TO-252-4
HG1507MDT-3.3 from HGSEMI, in a TO-252-4. 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 | VIN | power_in | Supply input requiring a 4.5V~40V DC source, with a large-value capacitor connected between this pin and ground to remove supply noise. |
| 2 | OUTPUT | power_out | Power switch output pin, a switching node that supplies the output load. |
| 3 | GND | power_in | Ground pin, shown as a short stub on the TO252-4 drawing with the metal tab also marked GND; place it in the output-capacitor ground path outside the Schottky diode path to keep switching current spikes from adding noise. |
| 4 | FEEDBACK | input | Voltage feedback pin that senses the output voltage through an external resistor divider, with a feedback threshold voltage of 1.23V. |
| 5 | ON_OFF | input | Enable pin where a low level turns the chip on and a high level turns it off, defaulting to low when floating (thresholds 1.4V high / 0.8V low). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | TO-252-4 |
| Category | Power Management (PMIC) |
| Pins | 5 |
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 regulation voltage (HG1507-3.3) | VOUT | 3.168 | 3.3 | 3.432 | V | VIN=4.75V |
4 |
| Input operating voltage | V | 4.5 | 40 | V | 5 | ||
| Standby current | ISTBY | 80 | 200 | uA | VON_OFF=5V | 5 | |
| Quiescent operating current | IQ | 2 | 10 | mA | VON_OFF=0V, VFB=VIN | 5 | |
| Operating (switching) frequency | FOSC | 127 | 150 | 173 | KHz | 5 | |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0 | 5 |
| ON_OFF pin threshold voltage, high (control OFF) | VON_OFF | 1.4 | V | 5 | |||
| ON_OFF pin threshold voltage, low (control ON) | VON_OFF | 0.8 | V | 5 | |||
| ON_OFF pin leakage current, OFF state | IH | 5 | 15 | uA | VON_OFF=2.5V (OFF) | 5 | |
| ON_OFF pin leakage current, ON state | IL | 0.2 | 5 | uA | VON_OFF=2.5V (ON) | 5 | |
| Saturation voltage | VCE | 1.3 | 1.5 | V | VFB=0V, IOUT=3A | 5 | |
| Maximum duty cycle | DMAX | 100 | % | VFB=0V | 5 | ||
| Input supply voltage (absolute maximum) | VIN | 40 | V | 3 | |||
| Feedback pin voltage | VFB | -0.3 | V | Upper limit printed as VIN | 3 | ||
| ON_OFF pin voltage | VON_OFF | -0.3 | V | Upper limit printed as VIN | 3 | ||
| Power switch output pin voltage | VOUT_PUT | -0.3 | V | Upper limit printed as VIN | 3 | ||
| Operating junction temperature (absolute maximum table) | TJ | -40 | 125 | °C | 3 | ||
| Storage temperature | TSTG | -65 | 150 | °C | 3 | ||
| Lead soldering temperature | TLEAD | 260 | °C | 3 | |||
| ESD capability | ESD | 2000 | V | Human body model | 3 | ||
| Recommended input voltage | VIN | 5 | 40 | V | 3 | ||
| Recommended operating junction temperature range | TJ | -40 | 125 | °C | 3 | ||
| Thermal resistance, junction to ambient | RJA | 50 | °C /W | 5 | |||
| Efficiency (HG1507-3.3) | ŋ | 73 | % | VIN=12V, VOUT=3.3V, ILOAD=3A | 4 |
CAD (KiCad official)
- Symbol:
HG1507MDT-3.3 - Footprint:
Package_TO_SOT_SMD:TO-252-4 - 3D model: TO-252-4 (KiCad packages3D, STEP)
- 3D model files:
hg1507mdt-3-3-etched.step/hg1507mdt-3-3-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hg1507mdt-3-3.step/hg1507mdt-3-3.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (10 pp, sha256
0a0a99291b37f1c1, retrieved 2026-10-18, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).