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SK6512SD4-33
Public Made by Adomby adom
Suntek Linear Voltage Regulators (LDO), DFN1x1-4. 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
markdownSK6512SD4-33
Suntek · Linear Voltage Regulators (LDO) · DFN1x1-4
SK6512SD4-33 from Suntek, in a DFN1x1-4. 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 | IN | power_in | Supply input pin (up to 36 V operating) that must be closely decoupled to GND with a 1 μF or greater ceramic capacitor. |
| 2 | GND | power_in | Ground. |
| 3 | NC | unconnected | No connection. |
| 4 | OUT | power_out | Regulated output pin (200 mA max) that needs a 1 μF or greater ceramic capacitor bypassed to ground. |
| 5 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Suntek |
| Package | DFN1x1-4 |
| Category | Power Supply Chip |
| 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 Operation Range | VIN | 36 | V | 5 | |||
| DC Supply Quiescent Current | IQ | 1.5 | 3 | μA | VIN = VOUT + 2 V, TA = 25° | 5 | |
| Line Regulation | RegLINE | 0.01 | 0.04 | %/V | VIN = VOUT + 1 V to 30 V, IOUT = 10 mA | 5 | |
| Load Regulation | RegLOAD | 5 | 20 | mV | IOUT from 1 mA to 150 mA, VIN = VOUT + 2 V | 5 | |
| Load Regulation | RegLOAD | 25 | 60 | mV | IOUT from 1 mA to 150 mA, VIN = 10 V | 5 | |
| Dropout Voltage | VDROP | 820 | mV | VOUT = 3.3 V, IOUT = 150 mA | 5 | ||
| Dropout Voltage | VDROP | 520 | mV | VOUT = 3.3 V, IOUT = 100 mA | 5 | ||
| Maximum Output Current | IOUT | 200 | mA | VIN = VOUT + 1 V | 5 | ||
| Short Current Protection | ISHORT | 100 | mA | OUT short to GND | 5 | ||
| Output Noise | eN | 90 | μVRMS | 10 Hz to 100 kHz, IOUT = 30 mA | 5 | ||
| IN pin to GND pin | -0.3 | 40 | V | 4 | |||
| OUT pin to GND pin | -0.3 | 6 | V | 4 | |||
| Operating Junction Temperature | -40 | 125 | ℃ | 4 | |||
| Storage Temperature | -65 | 150 | ℃ | 4 | |||
| Lead Temperature | 300 | ℃ | Soldering, 10 sec | 4 | |||
| ESD (HBM) | -2000 | 2000 | V | ESDA/JEDEC JS-001-2017 | 4 | ||
| Thermal Resistance Junction to Ambient | 180 | ℃/W | DFN1×1-4 | 4 | |||
| Output Capacitance | COUT | 1 | 10 | μF | Recommended output capacitor, ESR 5 mΩ to 100 mΩ, X7R or X5R | 4 | |
| Input Capacitance | CIN | 1 | 10 | μF | Recommended ceramic capacitor between VIN and GND | 4 |
CAD (KiCad official)
- Symbol:
SK6512SD4-33 - Footprint:
Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm - 3D model: DFN1x1-4 (KiCad packages3D, STEP)
- 3D model files:
sk6512sd4-33-etched.step/sk6512sd4-33-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sk6512sd4-33.step/sk6512sd4-33.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Suntek datasheet (11 pp, sha256
7d2b2e8e5e8c2dd0, 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).