# H7210-18M5R

**Shanghai Siproin Microelectronics** · Linear Voltage Regulators (LDO) · SOT-23-5

H7210-18M5R from Shanghai Siproin Microelectronics, 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 | Power input pin; the datasheet gives a recommended supply input range of 2.5V to 5.5V, an absolute maximum of 8V, and a 10uF input capacitor between VIN and GND. |
| 2 | GND | power_in | Ground pin; the output capacitor (at least 10uF) should be placed as close as possible between VOUT and GND for phase compensation. |
| 3 | CE | input | Chip enable pin that shuts the IC down via its signal, with recommended input range 0V to 5.5V, and the datasheet suggests driving it from VIN or VSS rather than leaving it floating. |
| 4 | NC | unconnected | No connection pin, not internally connected in the datasheet pin assignment. |
| 5 | VOUT | power_out | Regulated output pin driven by the internal P-channel MOSFET, with 1.8V output for this variant, ±2% accuracy, and up to 30mA tested at 1.0mA to 30mA load in the electrical characteristics. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Siproin Microelectronics |
| Package | SOT-23-5 |
| Category | Power Management ICs |
| 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 Current | Iout |  |  | 500 | mA | Vin-Vout=1V | 4 |
| Line Regulation | △Vout1/(△Vin·Vout) |  | 0.05 | 0.2 | %/V | 4.3V≤Vin≤8V, Iout=10mA | 4 |
| Load Regulation | △Vout |  | 10 | 30 | mV | Vin=4.3V, 1.0mA≤Iout≤100mA | 4 |
| Supply Current | Iss |  | 5 | 30 | uA |  | 4 |
| Input Voltage | Vin |  |  | 6 | V |  | 4 |
| Supply Voltage | Vin | -0.3 |  | 8 | V |  | 3 |
| Storage Temperature | Tstg | -50 |  | 125 | ℃ |  | 3 |
| Operating Temperature | Topr | -40 |  | 85 | ℃ |  | 3 |
| En Input Voltage | VEN | 0 |  | 5.5 | V | Recommended operating conditions, TA = 25 °C | 3 |
| Junction Temperature Range | TJ | -40 |  | 125 | ℃ | Recommended operating conditions, TA = 25 °C | 3 |
| Ambient Temperature Range | TA | -40 |  | 85 | ℃ | Recommended operating conditions, TA = 25 °C | 3 |
| Thermal Resistance (Junction to Ambient), SOT23-5 | θJA |  |  | 500 | ℃/W | Assume no ambient airflow, no heat sink | 3 |
| Power Dissipation, SOT23-5 | PD |  |  | 0.25 | W | PD measured at Ta = 25℃ | 3 |

## CAD (KiCad official)

- Symbol: `H7210-18M5R`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `h7210-18m5r-etched.step` / `h7210-18m5r-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `h7210-18m5r.step` / `h7210-18m5r.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Shanghai Siproin Microelectronics datasheet](docs/h7210-18m5r-datasheet.pdf) (6 pp, sha256 `d68700857f3166ee`, retrieved 2026-11-04, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/h7210-18m5r-datasheet.pdf)