# LMV551M5

**HGSEMI** · Operational Amplifier · SOT-23-5

LMV551M5 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 | IN+ | input | Non-inverting input of the amplifier; common-mode range extends from VSS-0.1V to VDD+0.1V (rail-to-rail input). |
| 2 | VSS | power_in | Negative supply or ground; for dual-supply operation (±1.05V to ±2.75V) bypass with a 0.1µF ceramic capacitor. |
| 3 | IN- | input | Inverting input of the amplifier; common-mode range extends from VSS-0.1V to VDD+0.1V (rail-to-rail input). |
| 4 | OUT | output | Rail-to-rail amplifier output; optimized for bandwidth, so use a series isolation resistor when driving capacitive loads. |
| 5 | VDD | power_in | Positive supply, 2.1V to 5.5V single supply (absolute maximum 7.5V between VDD and VSS), with a 0.1µF ceramic bypass capacitor placed close to the pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| 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 |
|---|---|---|---|---|---|---|---|
| Power Supply Voltage (VDD to Vss) |  | -0.5 |  | 7.5 | V |  | 3 |
| PDB Input Voltage |  |  |  | 7 | V |  | 3 |
| Operating Temperature Range |  | -40 |  | 125 | °C |  | 3 |
| Junction Temperature |  |  |  | 160 | °C |  | 3 |
| Storage Temperature Range |  | -55 |  | 150 | °C |  | 3 |
| Lead Temperature (soldering, 10sec) |  |  |  | 245 | °C | soldering, 10sec | 3 |
| ESD Susceptibility HBM |  |  |  | 6 | KV |  | 3 |
| ESD Susceptibility MM |  |  |  | 300 | V |  | 3 |
| Input Offset Voltage | VOS |  | 0.4 | 3.5 | mV | VCM = VS/2; +25°C | 4 |
| Input Offset Voltage | VOS |  |  | 5.6 | mV | VCM = VS/2; -40°C to +85°C | 4 |
| Common-Mode Rejection Ratio | CMRR | 62 | 70 |  | dB | VS = 5.5V, VCM = -0.1V to 4V; +25°C | 4 |
| Common-Mode Rejection Ratio | CMRR | 62 |  |  | dB | VS = 5.5V, VCM = -0.1V to 4V; -40°C to +85°C | 4 |
| Common-Mode Rejection Ratio | CMRR | 56 | 68 |  | dB | VS = 5.5V, VCM = -0.1V to 5.6V; +25°C | 4 |
| Common-Mode Rejection Ratio | CMRR | 55 |  |  | dB | VS = 5.5V, VCM = -0.1V to 5.6V; -40°C to +85°C | 4 |
| Open-Loop Voltage Gain | AOL | 70 | 80 |  | dB | RL = 5kΩ, VO = +0.1V to +4.9V; +25°C | 4 |
| Open-Loop Voltage Gain | AOL | 70 |  |  | dB | RL = 5kΩ, VO = +0.1V to +4.9V; -40°C to +85°C | 4 |
| Open-Loop Voltage Gain | AOL | 90 | 100 |  | dB | RL = 10kΩ, VO = +0.1V to +4.9V; +25°C | 4 |
| Open-Loop Voltage Gain | AOL | 85 |  |  | dB | RL = 10kΩ, VO = +0.1V to +4.9V; -40°C to +85°C | 4 |
| Output Voltage Swing from Rail (high) | VOH | 4.99 | 4.997 |  | V | RL = 100kΩ; +25°C | 4 |
| Output Voltage Swing from Rail (high) | VOH | 4.98 |  |  | V | RL = 100kΩ; -40°C to +85°C | 4 |
| Output Voltage Swing from Rail (low) | VOL |  | 3 | 10 | mV | RL = 100kΩ; +25°C | 4 |
| Output Voltage Swing from Rail (low) | VOL |  |  | 20 | mV | RL = 100kΩ; -40°C to +85°C | 4 |
| Output Voltage Swing from Rail (high) | VOH | 4.97 | 4.992 |  | V | RL = 10kΩ; +25°C | 4 |
| Output Voltage Swing from Rail (high) | VOH | 4.96 |  |  | V | RL = 10kΩ; -40°C to +85°C | 4 |
| Output Voltage Swing from Rail (low) | VOL |  | 8 | 30 | mV | RL = 10kΩ; +25°C | 4 |
| Output Voltage Swing from Rail (low) | VOL |  |  | 40 | mV | RL = 10kΩ; -40°C to +85°C | 4 |
| Output Current (source) | ISOURCE | 60 | 84 |  | mA | RL = 10Ω to VS/2; +25°C | 4 |
| Output Current (source) | ISOURCE | 45 |  |  | mA | RL = 10Ω to VS/2; -40°C to +85°C | 4 |
| Output Current (sink) | ISINK | 60 | 75 |  | mA | +25°C | 4 |
| Output Current (sink) | ISINK | 45 |  |  | mA | -40°C to +85°C | 4 |
| Operating Voltage Range |  | 2.1 |  |  | V | +25°C | 4 |
| Operating Voltage Range |  | 2.5 |  |  | V | -40°C to +85°C | 4 |
| Operating Voltage Range |  |  |  | 5.5 | V | +25°C | 4 |
| Power Supply Rejection Ratio | PSRR | 60 | 82 |  | dB | VS = +2.5V to +5.5V, VCM = +0.5V; +25°C | 4 |
| Power Supply Rejection Ratio | PSRR | 58 |  |  | dB | VS = +2.5V to +5.5V, VCM = +0.5V; -40°C to +85°C | 4 |
| Quiescent Current per Amplifier | IQ |  | 40 | 60 | µA | +25°C | 4 |
| Quiescent Current per Amplifier | IQ |  |  | 80 | µA | -40°C to +85°C | 4 |
| Package Thermal Resistance, junction-to-ambient (SOT-23-5) | θJA |  | 190 |  | °C/W | TA=+25℃ | 3 |

## CAD (KiCad official)

- Symbol: `LMV551M5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `lmv551m5-etched.step` / `lmv551m5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmv551m5.step` / `lmv551m5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [HGSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603381707429605376) (16 pp, sha256 `352f6bc8ce49625a`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-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).

[Datasheet PDF](docs/lmv551m5-datasheet.pdf)