component
EA9203
Public Made by Adomby adom
Everanalog IC design DC-DC Converters, SOT-23-6. 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
markdownEA9203
Everanalog IC design · DC-DC Converters · SOT-23-6
EA9203 from Everanalog IC design, in a SOT-23-6. 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 | BST | output | High side gate drive boost pin that requires a 0.1μF-1μF capacitor connection to LX to fully turn on the internal high-side NMOS. |
| 2 | GND | power_in | Ground pin. |
| 3 | FB | input | Voltage feedback input pin for feedback voltage regulation at 0.8V±1% via resistive divider from VOUT. |
| 4 | SHDN | input | Enable input pin (pull high to enable, pull low to disable) with 100kΩ resistor connection to VIN for auto start-up. |
| 5 | VIN | power_in | Power supply input pin for 4.5V to 24V operation; input capacitors should be placed as close as possible to minimize noise. |
| 6 | LX | output | Power switching node that connects to external inductor for energy storage and output ripple filtering. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Everanalog IC design |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Feedback Voltage | VFB | 0.788 | 0.8 | 0.812 | V | 4.5V≦VIN≦23V | 5 |
| VIN Shutdown Supply Current | ISD | 1 | 10 | μA | EN=0V | 5 | |
| Feedback Input Current | IFB | 0.01 | 0.1 | μA | VFB=1V | 5 | |
| H Input Low Voltage | H (L | 0.4 | V | 5 | |||
| H Input High Voltage | H (H | 1.5 | V | 5 | |||
| H Input Current | H | 2 | uA | H=2V | 5 | ||
| Supply Voltage VIN (absolute maximum) | VIN | -0.3 | 25 | V | 4 | ||
| Enable Voltage H (absolute maximum) | -0.3 | 25 | V | 4 | |||
| LX Voltage (absolute maximum) | VLX | -0.3 | V | 4 | |||
| BST Pin Voltage (absolute maximum) | VBST | -0.3 | V | 4 | |||
| All Other Pins Voltage (absolute maximum) | -0.3 | 6 | V | 4 | |||
| Maximum Junction Temperature | TJ | 150 | °C | 4 | |||
| Storage Temperature | TS | -65 | 150 | °C | 4 | ||
| Lead Temperature (Soldering, 10 sec.) | 260 | °C | 10 sec soldering | 4 | |||
| Supply Voltage VIN (recommended) | VIN | 4.5 | 24 | V | 4 | ||
| Operation Temperature Range | -40 | 85 | °C | 4 | |||
| VIN Quiescent Current | IDDQ | 0.45 | mA | EN=2V, VFB=1V | 5 | ||
| High-Side MOSFET RDS(ON) | RDS(ON) | 280 | mΩ | 5 | |||
| Low-Side MOSFET RDS(ON) | RDS(ON) | 160 | mΩ | 5 | |||
| Valley Current Limit | ILIMIT | 1.6 | A | Note 3 (not production tested) | 5 | ||
| On Time | TON | 105 | ns | VIN=12V, VOUT=1.05V | 5 | ||
| Minimum On Time | TON(MIN) | 60 | ns | 5 | |||
| Minimum Off Time | TOFF(MIN) | 105 | ns | VFB=0.6V | 5 | ||
| Input Supply Voltage UVLO Threshold | VUVLO(Vth) | 4.3 | V | VIN Rising | 5 | ||
| UVLO Threshold Hysteresis | VUVLO(HYS) | 0.35 | V | 5 | |||
| Internal Soft-Start Period | TSS | 1.5 | ms | Note 3 (not production tested) | 5 | ||
| Thermal Shutdown Threshold | TSD | 160 | °C | Note 3 (not production tested) | 5 | ||
| Thermal Shutdown Hysteresis | THYS | 30 | °C | Note 3 (not production tested) | 5 | ||
| Package Thermal Resistance, junction-to-ambient | θJA | 250 | °C/W | Note 2: measured at 25°C ambient on JEDEC-51-7 4-layer board | 4 | ||
| Package Thermal Resistance, junction-to-case | θJC | 110 | °C/W | 4 |
CAD (KiCad official)
- Symbol:
EA9203 - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ea9203-etched.step/ea9203-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ea9203.step/ea9203.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Everanalog IC design datasheet (9 pp, sha256
292e17bf77610936, retrieved 2026-09-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).