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SK6054D4-11
Public Made by Adomby adom
Suntek Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, DFN-4(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
markdownSK6054D4-11
Suntek · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN-4(1x1)
SK6054D4-11 from Suntek, in a DFN-4(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 output pin; use an output capacitor of 0.47μF to 10μF (usually 1μF) with ESR 5mΩ to 100mΩ placed close to OUT and GND, delivering up to 500mA. |
| 2 | GND | power_in | Ground pin. |
| 3 | CE | input | Chip enable pin, active high (VENH 0.9V min, VENL 0.4V max); it has no internal pull-up and must not be left floating, so tie it to IN if unused. |
| 4 | IN | power_in | Input supply pin, operating range 1.2V to 5.0V (absolute max 6.0V); decouple with a 1μF ceramic capacitor placed close to the device. |
| 5 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Suntek |
| Package | DFN-4(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 |
|---|---|---|---|---|---|---|---|
| Operating Input Voltage Range | VIN | 1.2 | 5 | V | 4 | ||
| Dropout Voltage | VDROP | 430 | 575 | mV | VOUT = 1.1V, IOUT = 500mA | 4 | |
| Dropout Voltage | VDROP | 255 | 345 | mV | VOUT = 1.1V, IOUT = 300mA | 4 | |
| DC Supply Quiescent Current | IQ_ON | 30 | 55 | 70 | µA | Active mode: VCE = VIN | 4 |
| DC Supply Shutdown Current | IQ OFF | 0.1 | 2 | µA | VCE = 0V | 4 | |
| Output Voltage Accuracy | VOUT | -2 | 2 | % | IOUT = 1mA~500mA, TA = 25°C | 4 | |
| Output Voltage Accuracy | VOUT | -2.5 | 2.5 | % | IOUT = 1mA, TA = -40°C~85°C | 4 | |
| Output Voltage Line Regulation | RegLINE | 0.1 | 0.25 | %/V | VOUT+1V≤VIN≤5V, IOUT = 10mA | 4 | |
| Output Voltage Load Regulation | RegLOAD | 25 | 45 | mV | IOUT from 1mA to 500mA | 4 | |
| Line Transient | VTRLN | 15 | 30 | mV | IOUT = 1mA, VIN =VOUT+1V to 5V in 10us, TA=25°C | 4 | |
| Load Transient | VTRLD | 85 | 120 | mV | VIN = VOUT+1V, IOUT from 1mA to 500mA in 10us, TA = 25°C | 4 | |
| Load Transient | VTRLD | 50 | 120 | mV | VIN = VOUT+1V, IOUT from 500mA to 1mA in 10us, TA = 25°C | 4 | |
| Output Current | IOUT | 500 | mA | 4 | |||
| Over Current Limit | ILMT | 600 | 700 | 900 | mA | VIN = VOUT+1V, TA = 25°C | 4 |
| Short Current Limit | ISHORT | 70 | 110 | 180 | mA | VOUT = 0V, TA = 25°C | 5 |
| Power Supply Rejection Ratio | PSRR | 50 | 80 | dB | f =1kHz, COUT = 1μF, IOUT = 20mA, VIN = VOUT+1V, TA = 25°C | 5 | |
| Output Noise | eN | 40 | 70 | µVRMS | 10Hz to 100kHz, IOUT = 30mA, COUT = 1µF, TA = 25°C | 5 | |
| EN Low Threshold | VENL | 0.4 | V | VIN=1.2 to 5V | 5 | ||
| EN High Threshold | VENH | 0.9 | V | VIN=1.2 to 5V | 5 | ||
| CE Pull-down Current | ICE | 0.2 | 0.7 | 1 | µA | VIN = VCE =VOUT+1V, TA = 25°C | 5 |
| Auto Discharge Output Resistance | RLOW | 20 | 40 | 80 | Ω | VEN = 0V, VIN = 2V, IOUT = 10mA | 5 |
| Thermal Shutdown Temperature | TTSD | 160 | °C | Junction Temperature | 5 | ||
| Thermal Shutdown Temperature, released | TTSR | 140 | °C | Junction Temperature | 5 | ||
| Input Voltage | VIN | -0.3 | 6 | V | 3 | ||
| Input Voltage (CE Pin) | VCE | -0.3 | 6 | V | 3 | ||
| Output Voltage | VOUT | -0.3 | V | max is VIN+0.3 V | 3 | ||
| Maximum Load Current | 500 | mA | 3 | ||||
| Maximum Power Consumption | 600 | mW | 3 | ||||
| Operating Junction Temperature | TJ | -40 | 150 | °C | 3 | ||
| Storage Temperature | -65 | 150 | °C | 3 | |||
| Lead Temperature | 300 | °C | Soldering, 10 sec | 3 | |||
| Input Voltage | VIN | 1.2 | 5 | V | 3 | ||
| Output Current | IOUT | 0 | 500 | mA | 3 | ||
| Operating Ambient Temperature | TA | -40 | 85 | °C | 3 | ||
| Effective Input Ceramic Capacitor Value | CIN | 0.47 | 10 | μF | 3 | ||
| Effective Output Ceramic Capacitor Value | COUT | 0.47 | 10 | μF | 3 | ||
| Input and Output Capacitor ESR | ESR | 5 | 100 | mΩ | 3 | ||
| ESD HBM | -4000 | 4000 | V | ESDA/JEDEC JS-001-2017 | 3 | ||
| ESD CDM | -1500 | 1500 | V | ESDA/JEDEC JS-002-2014 | 3 |
CAD (KiCad official)
- Symbol:
SK6054D4-11 - Footprint:
Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm - 3D model: DFN-4(1x1) (KiCad packages3D, STEP)
- 3D model files:
sk6054d4-11-etched.step/sk6054d4-11-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sk6054d4-11.step/sk6054d4-11.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Suntek datasheet (10 pp, sha256
9a19e90ced066685, retrieved 2026-10-22, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).