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ETA5055V120DD1E

Public Made by Adom

by adom

ETA(钰泰) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DFN-4-EP(1x1). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ETA5055V120DD1E

ETA(钰泰) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4-EP(1x1)

ETA5055V120DD1E from ETA(钰泰), in a DFN-4-EP(1x1). 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 OUT power_out Output of the regulator; the output voltage range is 1.1V to 3.6V in 100mV steps and the continuous output current is 500mA.
2 GND power_in Ground pin.
3 EN input Enable pin: drive it high to enable the IC and low to disable it; for 1.8V ≤ VIN ≤ 5.5V, logic low is 0.4V maximum and logic high is 0.9V minimum.
4 IN power_in Input supply pin; the input voltage range is 1.8V to 5.5V, and the absolute maximum IN voltage is -0.3V to 6V.
5 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer ETA(钰泰)
Package DFN-4-EP(1x1)
Category Power Management (PMIC)
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
Input Voltage Range 1.8 5.5 V 3
Quiescent Current IQ 4.5 µA IOUT=0mA, VEN=VIN 3
Quiescent Current (dropout) IQ 10 µA IOUT=0mA, Dropout 3
Shutdown Current 1 µA VEN = 0V, 1.8V ≤ VIN ≤ 5.5V 3
Output Current Limit 540 800 mA VOUT = 95% 3
Output Foldback Current Limit 400 mA VOUT = 0V 3
Continuous Output Current 500 mA 3
Line Regulation 0.2 %/V VOUT + 1V ≤ VIN ≤ 5.5V 3
Load Regulation 15 mV 1mA ≤ IOUT ≤ 200 mA 3
EN pin input Logic Low 0.4 V 1.8V ≤ VIN ≤ 5.5V 3
EN pin input Logic High 0.9 V 1.8V ≤ VIN ≤ 5.5V 3
Start-up Time 100 µs 3
Discharge Resistance 90 Ω VIN=2.8V, VEN=0V 3
Thermal Shutdown 140 °C Rising, IOUT>1mA, Hysteresis =40°C 3
Thermal Shutdown 135 °C Rising, IOUT=0mA, Hysteresis =40° C 3
Operating Temperature Range -40 85 °C 2
IN, EN, OUT Voltage -0.3 6 V 2
Storage Temperature Range -55 150 °C 2
ESD HBM (Human Body Mode) 4 KV 2
ESD CDM (Charged Device Mode) 1 KV 2
Thermal Resistance (junction-to-ambient, DFN1x1-4) JA 120 °C/W DFN1x1-4 2

CAD (KiCad official)

  • Symbol: ETA5055V120DD1E
  • Footprint: Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm
  • 3D model: DFN-4-EP(1x1) (KiCad packages3D, STEP)
  • 3D model files: eta5055v120dd1e-etched.step / eta5055v120dd1e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); eta5055v120dd1e.step / eta5055v120dd1e.glb are the bare package body.

Provenance

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

  • Datasheet: ETA(钰泰) datasheet (17 pp, sha256 c144d45dc3f68538, retrieved 2026-10-17, 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