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ETA1485E8A

Public Made by Adom

by adom

etasolution DC-DC Converters, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ETA1485E8A

etasolution · DC-DC Converters · ESOP-8

ETA1485E8A 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 BST passive Bootstrap pin for the high-side gate drive; connect a 10nF capacitor from this pin to SW.
2 IN power_in Supply voltage input (3.6V to 18V operating range, 20V absolute maximum); bypass with a 22μF ceramic capacitor to GND.
3 SW output Switch node connecting the internal power MOSFETs to the external inductor, which connects between SW and the regulator output.
4 GND power_in Ground reference for the device.
5 FB input Feedback input (0.923V reference); connect an external resistor divider from the output to FB and GND to set VOUT.
6 COMP passive Regulator compensation node; connect a series RC network to GND.
7 EN input Enable input: drive high to enable the part and low to disable it (EN input low maximum 0.6V, high minimum 1.3V).
8 SS passive Soft-start pin; connect a 0.1μF capacitor from this pin to GND.
9 EP 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 3.6 18 V 2
FB Feedback Voltage 0.904 0.923 0.942 V 2
IN Voltage -0.3 20 V 2
SW, EN Voltage (max VIN+0.3V) -0.3 V 2
BST Voltage (max SW+6V) -0.3 V 2
FB Voltage -0.3 6 V 2
Operating Temperature Range -40 85 °C 2
Storage Temperature Range -55 150 °C 2
Input UVLO Rising 3.55 V Hysteresis=140mV 2
Input Supply Current 1 mA VFB =1.0V 2
Input Shutdown Current 6 μA 2
FB Input Current 0.01 μA 2
Error Amp Transconductance 800 μS 2
Current Sense Transresistance 0.2 2
Switching Frequency 340 KHz 2
High side Switch On Resistance 120 m ISW =200mA 2
Low side Switch On Resistance 100 m ISW =200mA 2
High side Switch Current Limit 3.5 A 2
SW Leakage Current 10 μA VIN=12V,VSW=0 or 12V, EN= GND 2
EN Input Current 1 μA 2
EN Input Low Voltage 0.6 V 2
EN Input High Voltage 1.3 V 2
Thermal Shutdown 150 °C Hysteresis=40°C 2

CAD (KiCad official)

  • Symbol: ETA1485E8A
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: eta1485e8a-etched.step / eta1485e8a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); eta1485e8a.step / eta1485e8a.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: etasolution datasheet (5 pp, sha256 8fddb2bbda78ca14, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF