# BCT2019EXKV15-TR

**BROADCHIP** · Linear Voltage Regulators (LDO) · SC-70-5

BCT2019EXKV15-TR from BROADCHIP, in a SC-70-5. 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 | power_in | Regulator input; supply voltage can range from 2.5V to 5.5V, and the datasheet recommends bypassing it with a 1uF capacitor to GND. |
| 2 | GND | power_in | Ground reference for the regulator. |
| 3 | EN | input | Shutdown input where a logic low reduces the supply current to 10nA, and it should be connected to IN for normal operation. |
| 4 | BP | passive | Reference-noise bypass for the fixed-voltage version (this 1.5V part); the datasheet recommends a low-leakage 0.01uF ceramic capacitor for reduced output noise. Pin 4 is shared with FB, which applies only to the adjustable version. |
| 5 | OUT | power_out | Regulator output. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | BROADCHIP |
| Package | SC-70-5 |
| Category | Power Supply Chip |
| 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 | 2.5 |  | 5.5 | V |  | 5 |
| Output Voltage Accuracy |  | -2.5 |  | 2.5 | % | IOUT=0.1mA | 5 |
| Ground Pin Current | IQ |  | 100 | 200 | uA | No load, EN=2V | 5 |
| Dropout Voltage |  |  | 270 | 400 | mV | IOUT=300mA | 5 |
| Line Regulation | ΔVLNR |  | 0.02 | 0.05 | %/V | VIN=2.5V or (VOUT+0.5V) to 5.5V, IOUT=1mA | 5 |
| Load Regulation (VOUT≤2V) | ΔVLDR |  | 0.004 | 0.008 | %/mA | IOUT=0.1mA to 300mA, COUT=1uF, VOUT≤2V | 5 |
| EN Input Bias Current | IB(SHDN) |  | 0.01 | 1 | uA | EN=0V or EN=5.5V | 5 |
| IN to GND voltage | VIN | -0.3 |  | 6 | V |  | 3 |
| EN to GND voltage | VEN | -0.3 |  |  | V |  | 3 |
| OUT, BP/FB to GND voltage | VOUT, VBP/FB | -0.3 |  |  | V |  | 3 |
| Power Dissipation SC70-5 | PD |  |  | 0.3 | W | PD@TA=25℃ | 3 |
| Junction Temperature | TJ |  |  | 150 | ℃ |  | 3 |
| Operating Temperature Range | TA | -40 |  | 85 | ℃ |  | 3 |
| Storage Temperature Range | TSTG | -65 |  | 150 | ℃ |  | 3 |
| Junction to ambient thermal resistance SC-70-5 (JEDEC 51-3 board) | θJA |  | 333 |  | °C/W | Layout dependent, standard JEDEC 51-3 test board | 9 |
| Maximum operation junction temperature | TJ(MAX) |  |  | 125 | °C | For continuous operation | 9 |

## CAD (KiCad official)

- Symbol: `BCT2019EXKV15-TR`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files: `bct2019exkv15-tr-etched.step` / `bct2019exkv15-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `bct2019exkv15-tr.step` / `bct2019exkv15-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [BROADCHIP datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586196437097332737) (13 pp, sha256 `6fc65dd02a9ccb91`, retrieved 2026-10-18, 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/bct2019exkv15-tr-datasheet.pdf)