component
ETA2893E8A
Public Made by Adomby adom
etasolution DC-DC Converters, ESOP-8. 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
markdownETA2893E8A
etasolution · DC-DC Converters · ESOP-8
ETA2893E8A from etasolution, in a ESOP-8. 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 | FB | input | Feedback input: connect an external resistor divider from the output to FB and GND to set VOUT, with VFB typically 1V. |
| 2 | VCC | power_in | Power supply pin for the internal circuit, to be bypassed with a 1uF capacitor; internal VCC is 5 to 6V with a 30mA current limit. |
| 3 | FOSC | input | Frequency setting pin: a resistor from this pin to GND sets the switching frequency per FSW = 28000/ROSC kHz (ROSC in kΩ) across 130kHz to 1.1MHz. |
| 4 | GND | power_in | Ground pin. |
| 5 | SW | output | Inductor connection: connect the inductor between SW and the regulator output. |
| 6 | IN | power_in | Input power pin, operating from 3.6V to 40V; bypass to GND with a minimum 10uF X7R or X5R capacitor. |
| 7 | BST | passive | Bootstrap pin: connect a 10nF capacitor from this pin to SW. |
| 8 | EN | input | Enable pin: drive high or leave floating to enable, low to disable; it has an accurate threshold for setting UVLO externally. |
| 9 | GND | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |
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 | VIN | 3.6 | 40 | V | 2 | ||
| Switching Frequency Range | 130 | 1100 | KHz | 2 | |||
| FB_ Voltage | VFB | 0.985 | 1 | 1.015 | V | 2 | |
| VCC Internal Voltage | VCC | 5 | 5.5 | 6 | V | 2 | |
| IN, SW, EN Voltage | -0.3 | 45 | V | 2 | |||
| BST Voltage | -0.3 | V | 2 | ||||
| FB,FOSC,VCC Voltage | -0.3 | 6.5 | V | 2 | |||
| Operating Temperature Range | TA | -40 | 85 | °C | 2 | ||
| Storage Temperature Range | TSTG | -55 | 150 | °C | 2 | ||
| Input UVLO Rising | 3.9 | V | Rising | 2 | |||
| Input UVLO Falling | 3.6 | V | 2 | ||||
| Input OVP Rising | 40 | V | 2 | ||||
| Input OVP Falling | 37.5 | V | 2 | ||||
| Input Supply Current | IQ | 9 | µA | VFB=1.1V, no switching | 2 | ||
| Input Shutdown Current | 1.2 | µA | 2 | ||||
| VCC Current Limit | 30 | mA | 2 | ||||
| FB_ Input Current | 0 | µA | 2 | ||||
| Switching Frequency Ff | Ff | 130 | KHz | ROSC open | 2 | ||
| Switching Frequency | 456 | KHz | ROSC=62K | 2 | |||
| Switching Frequency Fs | Fs | 1.1 | MHz | ROSC =0 | 2 | ||
| Maximum Duty Cycle | 99 | % | FSW=500KHz, CBST=10nF, VIN=4.9V, Voutset=5V | 2 | |||
| Short Circuit Hiccup On Time | 2.5 | mS | FSW=500KHz | 2 | |||
| Short Circuit Hiccup Off Time | 6.5 | mS | FSW=500KHz | 2 | |||
| FB_ Hiccup Falling Threshold | 42 | %VFB | 2 | ||||
| FB_ Hiccup Rising | 46 | %VFB | 3 | ||||
| FB_ OVP Rising | 113 | %VFB | 3 | ||||
| FB_ OVP Falling | 111 | %VFB | 3 | ||||
| Load Step | 5 | %/A | VIN = 12V, VOUT = 5V, COUT=44uF, IOUT=0.1A to 3A | 3 | |||
| High Side Switch On Resistance | RDS(ON) | 131 | mΩ | 3 | |||
| Low Side Switch On Resistance | RDS(ON) | 84 | mΩ | 3 | |||
| High Side Current Limit | 6.5 | A | 3 | ||||
| High Side Current Limit During Foldback | 2.1 | A | During Foldback | 3 | |||
| Low Side Zero Crossing Current | 100 | mA | 3 | ||||
| SW Leakage Current | ISW | 0 | µA | VIN=VSW=12V | 3 | ||
| FOSC Voltage | 1 | V | 3 | ||||
| EN Rising Threshold | 1 | V | Rising | 3 | |||
| EN Falling Threshold | 0.9 | V | Falling | 3 | |||
| EN Pull Up Current | 0.25 | uA | VEN=0V | 3 | |||
| Thermal Shutdown | 160 | °C | Rising | 3 | |||
| Thermal Shutdown Hys | 40 | °C | 3 | ||||
| Thermal Resistance junction-to-case | θJC | 10 | °C/W | ESOP8 | 2 |
CAD (KiCad official)
- Symbol:
ETA2893E8A - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
eta2893e8a-etched.step/eta2893e8a-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);eta2893e8a.step/eta2893e8a.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: etasolution datasheet (8 pp, sha256
bc03ee729a5792db, retrieved 2026-10-17, tier: lcsc) - 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).