component
BL1118CS8TRAD33
Public Made by Adomby adom
BL Shanghai Belling Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, ESOP-8-EP. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownBL1118CS8TRAD33
BL Shanghai Belling · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · ESOP-8-EP
BL1118CS8TRAD33 from BL Shanghai Belling, in a ESOP-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND/ADJ | power_in | Channel 1 ground (fixed-output version) or adjust pin (adjustable version). In the adjustable configuration, this pin is tied to the resistor divider midpoint; the regulator forces 1.25V between Vout1 and this pin. Adjust-pin current is typically 55uA (max 120uA). |
| 2 | Vin1 | power_in | Channel 1 input supply. Operating range up to 12V max. Bypass with a 10uF input capacitor (tantalum, electrolytic, or MLCC) close to the pin. |
| 3 | GND/ADJ | power_in | Channel 2 ground (fixed-output version) or adjust pin (adjustable version). In the adjustable configuration this pin is the feedback node driven to 1.25V above the corresponding output. |
| 4 | Vin2 | power_in | Channel 2 input supply. Operating range up to 12V max. Bypass with a 10uF input capacitor close to the pin. Pin configuration is customizable on demand so both channels can share a single input. |
| 5 | Vout2 | power_out | Channel 2 regulated output. Tied together with pin 6 to share current up to 1A. Requires a 10uF output capacitor. |
| 6 | Vout2 | power_out | Channel 2 regulated output (paralleled with pin 5). Fixed at 1.2/1.8/2.5/3.3/5V per ordering code, or set by external divider on the ADJ variant. 1A maximum with typical 1.3V dropout. |
| 7 | Vout1 | power_out | Channel 1 regulated output (paralleled with pin 8). Requires a 10uF output capacitor. 1A maximum with typical 1.3V dropout. |
| 8 | Vout1 | power_out | Channel 1 regulated output (paralleled with pin 7). Fixed at 1.2/1.8/2.5/3.3/5V per ordering code, or set by external divider on the ADJ variant. |
| 9 | EP | power_in | Exposed thermal pad on the underside of the ESOP-8 package. Solder to a ground copper pour for heat dissipation; theta-JC = 10 C/W, theta-JA = 63 C/W. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | BL Shanghai Belling |
| Package | ESOP-8-EP |
| Category | PMIC |
| Pins | 9 |
Ordering variants
BL1118CS8TRAD33BL1118CS8TRAD33CS8TR3333BL1118CS8TRAD33CS8TRADAD
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Reference Voltage (ADJ channel) | Vref | 1.225 | 1.25 | 1.275 | V | 10mA≤Iout≤1A, Vin=3.25V | 3 |
| Output Voltage (3.3V channel) | Vout | 3.234 | 3.3 | 3.366 | V | 0≤Iout≤1A, Vin=5.3V | 3 |
| Line Regulation (ADJ channel) | ΔVout | 0.1 | 0.2 | %/V | Iout=10mA, 2.75V≤Vin≤12V | 3 | |
| Line Regulation (3.3V channel) | ΔVout | 0.1 | 0.2 | %/V | Iout=10mA, 4.8V≤Vin≤12V | 3 | |
| Load Regulation (ADJ channel) | ΔVout | 10 | 30 | mV | Vin =2.75V, 10mA≤Iout≤1A | 3 | |
| Load Regulation (3.3V channel) | ΔVout | 10 | 30 | mV | Vin=4.8V, 10mA≤Iout≤1A | 3 | |
| Dropout Voltage | Vdrop | 1.23 | 1.3 | V | Iout=100mA | 4 | |
| Dropout Voltage | Vdrop | 1.3 | 1.5 | V | Iout=1A | 4 | |
| Current Limit | Ilimit | 1 | A | Vin-Vout=2V, Tj=25°C | 4 | ||
| Minimum Load Current (ADJ channel) | Imin | 2 | 10 | mA | 4 | ||
| Quiescent Current (3.3V channel) | Iq | 2 | 5 | mA | Vin =12V | 4 | |
| Adjust Pin Current (ADJ channel) | IAdj | 55 | 120 | uA | Vin =5V, 10mA≤Iout≤1A | 4 | |
| Adjust Pin Current Change (ADJ channel) | Ichange | 0.2 | 10 | uA | Vin =5V, 10mA≤Iout≤1A | 4 | |
| Temperature Coefficient | ΔV/ΔT | -100 | 100 | ppm | 4 | ||
| Junction-Ambient Thermal Resistance (ESOP-8) | JA | 63 | °C/W | ESOP-8 | 4 | ||
| Max Input Voltage | 12 | V | 2 | ||||
| Operating Junction Temperature (Tj) | Tj | 125 | C | 2 | |||
| Ambient Temperature (Ta) | Ta | -20 | 85 | C | 2 | ||
| Package Thermal Resistance (junction-case) | 10 | C/W | ESOP8 | 2 | |||
| Storage Temperature (Ts) | Ts | -40 | -150 | C | 2 | ||
| Lead Temperature | 260 | C | 10S | 2 | |||
| Input Voltage Range | 12 | V | 2 | ||||
| Ambient Temperature | -20 | 85 | C | 2 |
CAD (KiCad official)
- Symbol:
BL1118CS8TRAD33 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: ESOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
bl1118cs8trad33-etched.step/bl1118cs8trad33-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bl1118cs8trad33.step/bl1118cs8trad33.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: BL Shanghai Belling datasheet (8 pp, sha256
85526dbc6c09a729, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).