# AT6211C28SEG-N

**Agertech** · Linear Voltage Regulators (LDO) · SOT-23-5

AT6211C28SEG-N from Agertech, 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; operating voltage range is 1.2V to 6.0V (absolute maximum 6.5V). |
| 2 | VSS | power_in | Ground. |
| 3 | CE | input | ON/OFF control; CE high of at least 1.0V starts up the output and CE low of at most 0.5V shuts it down (standby current 0.1uA typ.), with voltage limited to Vss-0.3V to VIN+0.3V. |
| 4 | NC | unconnected | No connect. |
| 5 | VOUT | power_out | Regulated output, 2.8V for the C28 version, with 450mA maximum output current and a 1uF output capacitor. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Agertech |
| 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 Voltage | VOUT(E) | 0.99 |  | 1.01 | x VOUT(T) | IOUT=30mA, VIN=VOUT+1V | 9 |
| Stand-by Current | ICEL |  | 0.1 | 1 | μA | VCE=0V | 9 |
| Supply Current | ISS |  | 30 | 60 | μA | VIN=VOUT+1V | 9 |
| CE High Voltage | VCEH | 1 |  |  | V | Start up | 9 |
| CE Low Voltage | VCEL |  |  | 0.5 | V | Shut down | 9 |
| Maximum Output Current | IOUTMAX | 450 |  |  | mA | VIN=VOUT+1V | 9 |
| Input Voltage | VIN |  |  | 6.5 | V | Ta=25℃ | 5 |
| Output Current | IOUT |  |  | 600 | mA | Ta=25℃ | 5 |
| Power Dissipation SOT23-5 | PD |  |  | 0.6 | W | SOT23-5 | 5 |
| Operating Ambient Temperature Range | TOPR | -40 |  | 85 | ℃ |  | 5 |
| Storage Temperature Range | TSTG | -55 |  | 150 | ℃ |  | 5 |
| Junction temperature | TJ | -40 |  | 150 | ℃ |  | 5 |
| Thermal resistance junction to air SOT23-5 | θJA |  | 210 |  | ℃/W | SOT23-5 | 5 |
| Load Regulation | ΔVOUT |  | 7 |  | mV | VIN=VOUT+1V, 1mA≤IOUT≤100mA | 9 |
| Dropout Voltage 1 | VDIF1 |  | 110 |  | mV | IOUT=100mA | 9 |
| Dropout Voltage 2 | VDIF2 |  | 220 |  | mV | IOUT=200mA | 9 |
| Line Regulation | ΔVOUT/(ΔVIN•VOUT) |  | 0.04 |  | %/V | IOUT=30mA, VOUT+1V≤VIN≤6.5V | 9 |
| Output noise | EN |  | 50 |  | uVrms | IOUT=40mA, 300Hz~50kHz | 9 |
| Ripple Rejection Rate | PSRR |  | 70 |  | dB | IOUT=10mA, 1kHZ | 9 |
| Ripple Rejection Rate | PSRR |  | 62 |  | dB | IOUT=100mA, 10kHZ | 9 |
| Short-circuit Current | ISHORT |  | 65 |  | mA | VIN=VOUT+1V, VCE=VIN, VOUT=0V | 9 |
| Operating Voltage Range | VIN | 1.2 |  | 6 | V |  | 1 |

## CAD (KiCad official)

- Symbol: `AT6211C28SEG-N`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `at6211c28seg-n-etched.step` / `at6211c28seg-n-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `at6211c28seg-n.step` / `at6211c28seg-n.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Agertech datasheet](docs/at6211c28seg-n-datasheet.pdf) (19 pp, sha256 `f90e054d2f39ee74`, retrieved 2026-10-24, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/at6211c28seg-n-datasheet.pdf)