component
SK6018D4-33
Public Made by Adomby adom
Suntek Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, XDFN-4-EP(1x1). 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
markdownSK6018D4-33
Suntek · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · XDFN-4-EP(1x1)
SK6018D4-33 from Suntek, in a XDFN-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 | VOUT | power_out | Regulated LDO output, programmable from 1.2V to 3.6V in 0.1V steps (3.3V for this -33 version), rated for up to 300mA per the features list with a 350mA current limit. |
| 2 | GND | power_in | Ground reference for the regulator, connected to the thermal pad. |
| 3 | EN | input | Active-high enable input that must not be left floating; VENH is 1.2V minimum and VENL is 0.4V maximum, with input current up to 1.0µA. |
| 4 | VIN | power_in | Power input with a recommended supply range of 2.5V to 6.5V and an absolute maximum of -0.3V to 8V. |
| 5 | GND | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Suntek |
| Package | XDFN-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 |
|---|---|---|---|---|---|---|---|
| Output Voltage tolerance | VOUT | -2 | 2 | % | IOUT=1mA | 3 | |
| Input Voltage | VIN | 6.5 | V | 3 | |||
| Quiescent Current | IQ | 1 | 2 | µA | VOUT=3.3V, IOUT=0 | 3 | |
| Current Limit | I LIMIT | 350 | mA | VIN-VOUT=0.5V | 3 | ||
| Dropout Voltage | VDROP | 110 | mV | VOUT=3.3V, IOUT=100mA | 3 | ||
| Dropout Voltage | VDROP | 230 | mV | VOUT=3.3V, IOUT=200mA | 3 | ||
| Line Regulation | ΔVLINE | 0.01 | %/V | VIN=2.7~5.5V, IOUT=1mA | 3 | ||
| Load Regulation | ΔVLOAD | 100 | mV | VOUT=3.3V, IOUT=1~300mA | 3 | ||
| Short Current | I SHORT | 90 | mA | VEN=VIN,VOUT Short to GND with 1Ω | 3 | ||
| Shut-down Current | I SHDN | 0.1 | 1 | µA | VEN=0V | 3 | |
| EN Logic High Voltage | VENH | 1.2 | V | VIN=5.5V, IOUT=1mA | 3 | ||
| EN Logic Low Voltage | VENL | 0.4 | V | VIN=5.5V, VOUT=0V | 3 | ||
| EN Input Current | IEN | 1 | µA | VEN= 0 to 5.5V | 3 | ||
| Supply Voltage | VIN | 2.5 | 6.5 | V | 3 | ||
| Operating Temperature | TOPT | -40 | 85 | ℃ | 3 | ||
| Input Voltage | VIN | -0.3 | 8 | V | 2 | ||
| Output Current | IOUT | 350 | mA | 2 | |||
| Power Dissipation | PDMAX | 0.6 | W | DFN1x1_4L | 2 | ||
| Junction Temperature | TJ | -40 | 125 | ℃ | 2 | ||
| Ambient Temperature | TA | -40 | 85 | ℃ | 2 | ||
| Storage Temperature | TSTG | -55 | 150 | ℃ | 2 | ||
| Package Lead Soldering Temperature | TSOLDER | 260 | ℃ | 10s | 2 | ||
| Thermal Resistance, junction to ambient | RθJA | 250 | ℃/W | DFN1x1_4L | 2 |
CAD (KiCad official)
- Symbol:
SK6018D4-33 - Footprint:
Package_DFN_QFN:OnSemi_XDFN4-1EP_1.0x1.0mm_EP0.52x0.52mm - 3D model: XDFN-4-EP(1x1) (KiCad packages3D, STEP)
- 3D model files:
sk6018d4-33-etched.step/sk6018d4-33-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sk6018d4-33.step/sk6018d4-33.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Suntek datasheet (8 pp, sha256
002cedb5c832923a, retrieved 2026-10-09, 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).