component
BDP7533A-R
Public Made by Adomby adom
Bardeen Micro Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23. Pinout cross-checked by two models against 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.
README
markdownBDP7533A-R
Bardeen Micro · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23
BDP7533A-R from Bardeen Micro, in a SOT-23. 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 | GND | power_in | Ground pin; the datasheet requires a 1 uF input capacitor between VIN and GND, placed within 1 cm of the input pin and connected to a clean analog ground. |
| 2 | VOUT | power_out | Regulated output of the fixed 3.3 V LDO; the datasheet requires at least 1 uF from VOUT to GND for stability (output capacitor within 1 cm of the output pin) and states an output accuracy of -2% to +2%. |
| 3 | VIN | power_in | DC input supply; the input voltage range is 3 V to 40 V, and VIN must always remain above VOUT during power-down for correct operation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bardeen Micro |
| Package | SOT-23 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage range | 3 | 40 | V | 3 | |||
| Output voltage range | 3 | 12 | V | 3 | |||
| Output accuracy | -2 | 2 | % | 3 | |||
| Ground supply current | 5 | 10 | uA | No load | 3 | ||
| Max output current | 150 | mA | Vin-Vout=2V | 3 | |||
| Line regulation | 0.01 | 0.1 | %V | Iload=1mA | 3 | ||
| Load regulation | 2 | 4 | % | Iload=1-100mA | 3 | ||
| Dropout voltage | 740 | 1000 | mV | Iload=100mA | 3 | ||
| DC voltage input | VIN | 42 | V | 3 | |||
| Output voltage | -0.3 | 3.3 | 20 | V | 3 | ||
| Operating temperature range | -40 | 85 | ℃ | 3 | |||
| Storage temperature range | -55 | 125 | ℃ | 3 | |||
| Operating junction temperature (Tj) | Tj | 125 | ℃ | 3 | |||
| ESD human body model | 2 | KV | Human body mode | 3 | |||
| Lead temperature and time | 260 | ℃ | 时间少于 10S | 3 | |||
| Current limit | 200 | mA | 3 | ||||
| Short current | 200 | mA | 3 | ||||
| Power supply rejection ratio PSRR@100Hz | PSRR | 65 | dB | Vin=Vout+0.5V, Iload=1mA | 3 | ||
| Startup time | 500 | uS | 3 | ||||
| OTP (over-temperature protection threshold) | 165 | ℃ | 3 | ||||
| OTP hysteresis | 30 | ℃ | 4 |
CAD (KiCad official)
- Symbol:
BDP7533A-R - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
bdp7533a-r-etched.step/bdp7533a-r-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);bdp7533a-r.step/bdp7533a-r.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Bardeen Micro datasheet (8 pp, sha256
5aeccbc682078f95, retrieved 2026-10-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).