component
LP2985HM5-5.0
Public Made by Adomby adom
HGSEMI Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-5. 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
markdownLP2985HM5-5.0
HGSEMI · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-5
LP2985HM5-5.0 from HGSEMI, in a SOT-23-5. 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 | Input pin supplying the regulator, specified for an input voltage range of 3V to 45V, with absolute maximum VIN to GND of 55V. |
| 2 | GND | power_in | Ground pin; the datasheet recommends wide copper traces for both VIN and GND and placing the input and output capacitors as close as possible to the device. |
| 3 | EN | input | Enable pin: driving it high (at least 1V) turns the LDO on and driving it low (at most 0.4V) puts it in shutdown, with absolute maximum EN to GND of 55V; it has no internal pull-up or pull-down and must not be left floating, so connect it to VIN if unused. |
| 4 | NC | unconnected | No connection; the datasheet lists this pin as not connected internally. |
| 5 | VOUT | power_out | Regulated output pin with fixed output options of 1.8V, 3.0V, 3.3V or 5.0V (±2%), rated for an output current of 350mA with absolute maximum VOUT to GND of 7V, and requiring at least 1µF of ceramic output capacitance. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOT-23-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input Voltage | VIN | 3 | 45 | V | 6 | ||
| Output Voltage Tolerance | -2 | 2 | % | 1 | |||
| Output Current | IOUT_MAX | 300 | 350 | mA | 6 | ||
| EN High level | VENH | 1 | V | Enabled | 6 | ||
| EN Low level | VENL | 0.4 | V | Shutdown | 6 | ||
| VIN to GND | -0.3 | 55 | V | 5 | |||
| VOUT to GND | -0.3 | 7 | V | 5 | |||
| VIN to VOUT | -0.3 | 50 | V | 5 | |||
| EN to GND | -0.3 | 55 | V | 5 | |||
| Operating Temperature Range | -40 | 125 | ℃ | 5 | |||
| Storage Temperature | -40 | 150 | ℃ | 5 | |||
| Recommended minimum output capacitance | 1 | μF | Ceramic capacitor, temperature characteristic X7R or X5R | 9 | |||
| Recommended input series resistor R1 | R1 | 1 | Ω | When VIN≥18V; resistance to be adjusted per application | 9 | ||
| Quiescent Current | IGND | 2.5 | uA | VIN=12V, No load | 6 | ||
| Shutdown Current | ISHUT | 130 | nA | VIN=12V, EN=0V | 6 | ||
| Dropout Voltage | VDROP | 35 | mV | IOUT=10mA, VIN=VOUTNOM-0.1V | 6 | ||
| Dropout Voltage | VDROP | 350 | mV | IOUT=100mA, VIN=VOUTNOM-0.1V | 6 | ||
| Load Regulation | ΔVOUT/ΔIOUT | 0.1 | mV/mA | VIN=7V, 1mA≤IOUT≤100mA | 6 | ||
| Line Regulation | ΔVOUT/ΔVIN | 0.1 | mV/V | IOUT=1mA, VOUTNOM+0.5V≤VIN≤42V | 6 | ||
| Current Limit | ILIMIT | 500 | mA | 6 | |||
| Thermal Shutdown Temperature (shutdown, temperature increasing) | TSHDN | 144 | ℃ | Shutdown, temperature increasing | 6 | ||
| Thermal Shutdown Temperature (reset, temperature decreasing) | TSHDN | 126 | ℃ | Reset, temperature decreasing | 6 | ||
| Power Supply Rejection Ratio | PSRR | 73 | dB | VIN=10V, IOUT=10mA, F=1kHz, VOUT=3.3V | 6 | ||
| Recommended input capacitor | 1 | μF | Ceramic capacitor between VIN and GND | 9 | |||
| Thermal Resistance (Junction to Ambient) | 200 | ℃/W | Junction to Ambient | 5 | |||
| Power Dissipation | 600 | mW | 5 | ||||
| Electrostatic discharge, Human Body Model (HBM) | 4 | kV | Human Body Model (HBM) | 5 | |||
| Electrostatic discharge, Charged Device Model (CDM) | 200 | V | Charged Device Model (CDM) | 5 |
CAD (KiCad official)
- Symbol:
LP2985HM5-5.0 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
lp2985hm5-5-0-etched.step/lp2985hm5-5-0-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lp2985hm5-5-0.step/lp2985hm5-5-0.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (12 pp, sha256
4c2fb47e20c43cf2, retrieved 2026-10-17, 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).