component
BL78L33
Public Made by Adomby adom
GME(银河微电) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 7d ago |
| viewers | 7d ago |
| bl78l33-etched.glb | 7d ago |
| bl78l33-etched.step | 7d ago |
| bl78l33-hero.glb | 7d ago |
| bl78l33-hero.overlay.json | 7d ago |
| bl78l33.glb | 7d ago |
| bl78l33.kicad_mod | 7d ago |
| bl78l33.kicad_sym | 7d ago |
| bl78l33.lbr | 7d ago |
| bl78l33.step | 7d ago |
| package.json | 7d ago |
| page.json | 7d ago |
| README.md | 7d ago |
BL78L33
GME(银河微电) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89
BL78L33 from GME(银河微电), in a SOT-89. 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 | VO | power_out | Regulated 3.3 V output (BL78L33, 3.135 V to 3.465 V over line and load), up to 100 mA maximum output current, with a 0.1 µF output capacitor CO shown in the application circuit. |
| 2 | GND | power_in | Ground reference for the regulator, connected to the common return of the input capacitor C1 and the output capacitor CO. |
| 3 | VI | power_in | Unregulated input voltage, absolute maximum 30 V for the 78L33 to 78L09 versions, with a 0.33 µF input capacitor C1 shown in the application circuit. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GME(银河微电) |
| Package | SOT-89 |
| Category | Power Management (PMIC) |
| Pins | 3 |
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 (Tj=25℃ row) | VO | 3.168 | 3.3 | 3.432 | V | Tj=25℃ | 2 |
| Output voltage (5.8V to 20V row) | VO | 3.135 | 3.465 | V | 5.8V≤Vi≤20V, IO=1mA-40mA | 2 | |
| Output voltage (Vi=8.3V row) | VO | 3.135 | 3.465 | V | Vi=8.3V, IO=1mA-70mA | 2 | |
| Load regulation | Regload | 60 | mV | Tj=25℃, IO=1mA-100mA | 2 | ||
| Load regulation | Regload | 30 | mV | Tj=25℃, IO=1mA-40mA | 2 | ||
| Line regulation | Regline | 150 | mV | 5.8V≤Vi≤20V, Tj=25℃ | 2 | ||
| Line regulation | Regline | 100 | mV | 6.3V≤Vi≤20V, Tj=25℃ | 2 | ||
| Quiescent current | IQ | 6 | mA | Tj=25℃ | 2 | ||
| Quiescent current | IQ | 5.5 | mA | Tj=125℃ | 2 | ||
| Quiescent current change | ΔIQ | 1.5 | mA | 6.3V≤Vi≤20V | 2 | ||
| Quiescent current change | ΔIQ | 0.1 | mA | 1mA≤IO≤40mA | 2 | ||
| Ripple rejection | RR | 41 | 49 | dB | IO=40mA, 6.3V≤Vi≤16.3V, f=120Hz, Tj=25℃ | 2 | |
| Input voltage (78L33-78L09) | VI | 30 | V | 1 | |||
| Maximum output current | ICM | 100 | mA | 1 | |||
| Power dissipation | PD | 500 | mW | TA = 25C | 1 | ||
| Operating temperature range | TOPR | -40 | 125 | C | 1 | ||
| Junction temperature | TJ | 150 | C | 1 | |||
| Storage temperature range | TSTG | -65 | 150 | C | 1 | ||
| Thermal resistance junction-to-air | RθJA | 250 | °C/W | 1 |
CAD (KiCad official)
- Symbol:
BL78L33 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89 (KiCad packages3D, STEP)
- 3D model files:
bl78l33-etched.step/bl78l33-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bl78l33.step/bl78l33.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GME(银河微电) datasheet (9 pp, sha256
08fa1aef879d15b6, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).