component
BCT2019EXKV18-TR
Public Made by Adomby adom
BROADCHIP Linear Voltage Regulators (LDO), SC-70-5. 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
markdownBCT2019EXKV18-TR
BROADCHIP · Linear Voltage Regulators (LDO) · SC-70-5
BCT2019EXKV18-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 pin should be bypassed with a 1uF capacitor to GND. |
| 2 | GND | power_in | Ground reference for the regulator. |
| 3 | EN | input | Shutdown input; 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; bypass with a low-leakage 0.01uF ceramic capacitor for reduced output noise. |
| 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 | ||
| Maximum Output Current | 150 | mA | VOUT=1.2V,1.5V,1.8V, SC70-5 | 5 | |||
| Ground Pin Current | IQ | 100 | 200 | uA | No load, EN=2V | 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 Threshold (high) | VIH | 1.5 | V | VIN=2.5V to 5.5V, VEN=-0.3V to VIN | 5 | ||
| EN Input Threshold (low) | VIL | 0.3 | V | 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 | -0.3 | V | 3 | ||||
| Power Dissipation (SC70-5) | PD | 0.3 | W | TA=25℃ | 3 | ||
| Junction-to-ambient Thermal Resistance SC-70-5 | θJA | 333 | °C/W | Layout dependent, standard JEDEC 51-3 thermal test board | 9 | ||
| Junction Temperature | TJ | 150 | ℃ | 3 | |||
| Maximum Operating Junction Temperature | TJ(MAX) | 125 | °C | 9 | |||
| Operating Temperature Range | TA | -40 | 85 | ℃ | 3 | ||
| Storage Temperature Range | TSTG | -65 | 150 | ℃ | 3 | ||
| Current Limit | ILIM | 800 | mA | 5 | |||
| Output Voltage Noise | en | 30 | uVRMS | f=10Hz to 100kHz, CBP=0.01uF, COUT=10uF | 5 | ||
| Power Supply Rejection Ratio (217Hz) | PSRR | 77 | dB | CBP=0.1uF, ILOAD=50mA, COUT=1uF, VIN=VOUT+1V, f=217Hz | 5 | ||
| Power Supply Rejection Ratio (1kHz) | PSRR | 74 | dB | CBP=0.1uF, ILOAD=50mA, COUT=1uF, VIN=VOUT+1V, f=1kHz | 5 | ||
| Shutdown Supply Current | IQ(SHDN) | 0.01 | uA | EN=0.4V | 5 | ||
| Shutdown Exit Delay | 30 | us | CBP=0.01uF, COUT=1uF, No Load | 5 | |||
| Thermal Shutdown Temperature | TSHDN | 150 | °C | 5 | |||
| Thermal Shutdown Hysteresis | ΔTSHDN | 15 | °C | 5 |
CAD (KiCad official)
- Symbol:
BCT2019EXKV18-TR - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SC-70-5 (KiCad packages3D, STEP)
- 3D model files:
bct2019exkv18-tr-etched.step/bct2019exkv18-tr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bct2019exkv18-tr.step/bct2019exkv18-tr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BROADCHIP datasheet (13 pp, sha256
6fc65dd02a9ccb91, retrieved 2026-10-18, 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).