component
HG1501S-ADJ
Public Made by Adomby adom
HGSEMI DC-DC Converters, 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
markdownHG1501S-ADJ
HGSEMI · DC-DC Converters · TO-263-5
HG1501S-ADJ 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 | VIN | power_in | Supply input pin requiring a DC supply of 4.5 V to 40 V (60 V for the HV versions); a large capacitor should be connected in parallel between VIN and GND to suppress supply noise. |
| 2 | OUTPUT | output | Power switch output pin, a switching node that supplies the output load; the negative voltage at this pin must stay above the internal parasitic diode turn-on voltage, and a Schottky diode with Vf below 0.5 V is recommended. |
| 3 | GND | power_in | Ground pin that should be routed so the output capacitor ground path is kept separate from the Schottky diode return path to prevent switching-current spikes from coupling noise into the circuit. |
| 4 | FEEDBACK | bidirectional | Voltage feedback pin that monitors the output through an external resistor divider and has a threshold voltage of 1.23 V; for the ADJ version the output is set by this divider over 1.23 V to 37 V. |
| 5 | ON_OFF | input | Enable/shutdown pin where a low level (VON_OFF ≤ 0.8 V) turns the device on and a high level (≥ 1.4 V) turns it off, and it defaults low when left floating. |
| 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 (PMIC) |
| 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 regulation voltage HG1501-ADJ (non-HV) | VOUT | 1.193 | 1.23 | 1.267 | V | VIN=4.5V |
4 |
| Operating frequency | FOSC | 127 | 150 | 173 | KHz | 5 | |
| Current limit | IL | 3.6 | 4.8 | 6.9 | A | VFB=0 | 5 |
| Quiescent operating current | IQ | 2 | 10 | mA | VON_OFF=0V, VFB=VIN | 5 | |
| Standby current | ISTBY | 80 | 200 | uA | VON_OFF=5V | 5 | |
| Input operating voltage HG1501 | VIN | 4.5 | 40 | V | 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, OFF | IH | 5 | 30 | uA | VON_OFF=2.5V (OFF) | 5 | |
| ON_OFF pin leakage, ON | IL | 0.2 | 10 | uA | VON_OFF=0.5V (ON) | 5 | |
| Saturation voltage | VCE | 1.3 | 1.5 | V | VFB=0V, IOUT=3A | 5 | |
| Maximum duty cycle | DMAX | 100 | % | VFB=0V | 5 | ||
| Thermal resistance, junction to ambient (no heatsink, TO220/TO263 package) | RJA | 50 | °C /W | No heatsink, TO220, TO263 package | 5 | ||
| Input voltage HG1501 (recommended) | VIN | 5 | 40 | V | 3 | ||
| Operating junction temperature (recommended) | TJ | -40 | 125 | °C | 3 | ||
| Input voltage HG1501 (absolute maximum) | VIN | -0.3 | 45 | V | 3 | ||
| Feedback pin voltage (absolute maximum, upper limit VIN) | VFB | -0.3 | V | 3 | |||
| ON_OFF pin voltage (absolute maximum, upper limit VIN) | VON_OFF | -0.3 | V | 3 | |||
| Power switch output pin voltage (absolute maximum, upper limit VIN) | VOUT_PUT | -0.3 | V | 3 | |||
| Operating junction temperature (absolute maximum) | TJ | -40 | 125 | °C | 3 | ||
| Storage temperature | TSTG | -65 | 150 | °C | 3 | ||
| Lead soldering temperature | TLEAD | 245 | °C | 3 | |||
| ESD capability | ESD | 2000 | V | Human body model | 3 |
CAD (KiCad official)
- Symbol:
HG1501S-ADJ - Footprint:
Package_TO_SOT_SMD:TO-263-5_TabPin6 - 3D model: TO-263-5 (KiCad packages3D, STEP)
- 3D model files:
hg1501s-adj-etched.step/hg1501s-adj-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hg1501s-adj.step/hg1501s-adj.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (10 pp, sha256
9ba9664e20418e04, 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-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).