component
AT53AL33ESE
Public Made by Adomby adom
Agertech Linear Voltage Regulators (LDO), SOT-23-5. 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
markdownAT53AL33ESE
Agertech · Linear Voltage Regulators (LDO) · SOT-23-5
AT53AL33ESE from Agertech, in a SOT-23-5. 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 | VIN | power_in | Input voltage pin, operating up to 40V with an absolute maximum of -0.3 to 45 V relative to GND. |
| 2 | GND | power_in | Ground pin. |
| 3 | EN | input | Enable input, with enable-high level of 0.9 V and enable-low level of 0.4 V and an absolute maximum of -0.3 to 45 V relative to GND. |
| 4 | CN | unconnected | Pin listed as CN with no function given in the datasheet (function column shows '/'). |
| 5 | VOUT | power_out | Regulated output voltage pin (3.3V for this AT53AL33 variant), up to 150mA output current, absolute maximum -0.3 to 7 V relative to GND. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Agertech |
| Package | SOT-23-5 |
| 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 |
|---|---|---|---|---|---|---|---|
| Output Voltage Accuracy | △VOUT | -2 | 2 | % | VIN=12V, IOUT=1mA, TJ=25℃ | 3 | |
| Output Voltage Range | VOUT | 1.5 | 5.5 | V | 3 | ||
| Enable high level | VENHI | 0.9 | V | 3 | |||
| Enable low level | VENLO | 0.4 | V | 3 | |||
| Line Regulation | △VLINE | 12 | mV | VIN = VOUT + 1V to 40V, or VIN = 5V to 40V, if VOUT < 4V | 3 | ||
| Load Regulation | △VLOAD | 30 | mV | IOUT = 1mA to 100mA | 3 | ||
| Load Regulation | △VLOAD | 80 | mV | IOUT = 1mA to 150mA | 3 | ||
| Quiescent Current | IQ | 4 | uA | TJ = 25℃ | 3 | ||
| Current Limit | ICL | 270 | 340 | mA | 3 | ||
| Dropout Voltage | VDROP | 400 | mV | IOUT = 100mA | 3 | ||
| Dropout Voltage | VDROP | 1200 | mV | IOUT = 150mA | 3 | ||
| Enable pin pull high current | IEN | 0.1 | uA | 3 | |||
| Thermal Shutdown | TSD | 140 | ℃ | 3 | |||
| Thermal Shutdown Hysteresis | THY | 20 | ℃ | 3 | |||
| Power-supply rejection ratio | PSRR | 80 | dB | f = 1kHz | 3 | ||
| Power-supply rejection ratio | PSRR | 60 | dB | f = 10kHz | 3 | ||
| VOUT to GND Voltage | VOUT | -0.3 | 7 | V | 3 | ||
| VIN to GND Voltage | VIN | -0.3 | 45 | V | 3 | ||
| EN Pin to GND Voltage | EN | -0.3 | 45 | V | 3 | ||
| Power Dissipation | 0.4 | W | SOT23-5 | 3 | |||
| Operating temperature range | -40 | 125 | ℃ | 3 | |||
| Thermal Resistance, Junction-to-Ambient | 250 | ℃/W | SOT23-5 | 3 | |||
| Human body model | HBM | 3 | KV | 3 | |||
| Charged device model | CDM | 200 | V | 3 |
CAD (KiCad official)
- Symbol:
AT53AL33ESE - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
at53al33ese-etched.step/at53al33ese-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at53al33ese.step/at53al33ese.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Agertech datasheet (6 pp, sha256
2ce77a45e171f0f7, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).