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Generated by kicad-footprint-generator · KiCad file format 20260206

Name	Last commit message	Last updated
docs	Publish 0.1.0 · Ray	20d ago
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README.md	Publish 0.1.0 · Ray	20d ago
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sk6613a-etched.step	sk6613a: factory component page (tier=lcsc) · Ray	20d ago
sk6613a-hero.glb	sk6613a: hero GLB from the etched model (keeps the MPN mark) · Ray	20d ago
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sk6613a.step	Publish 0.1.0 · Ray	20d ago

SK6613A

Suntek · DC-DC Converters · SOT-23-5

SK6613A from Suntek, in a SOT-23-5. 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	EN	input	Chip enable pin: drive EN above 1.2V to turn the part on and below 0.6V to turn it off, and do not leave it floating.
2	GND	power_in	Ground pin.
3	SW	output	Power switch output and switch-node connection to the inductor, connected to the drains of the internal P-ch and N-ch MOSFET switches.
4	IN	power_in	Power supply input that must be closely decoupled to GND with a 10µF or greater ceramic capacitor.
5	FB	input	Output voltage feedback pin, where an internal resistive divider scales the output voltage for comparison to the internal 0.6V reference.

Key specifications

Parameter	Value
Manufacturer	Suntek
Package	SOT-23-5
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 junction temperature		-40		150	°C		3
Operating junction temperature		-40		125	°C		3
Operating temperature range		-40		85	°C		3
Input voltage	VIN	2.7		5.5	V		3
Output current		0		3	A		3
Input Voltage Range		2.7		5.5	V		4
Supply Current (Quiescent)			40	80	µA	VEN =3.0V	4
Supply Current (Shutdown)			0.1	1	µA	VEN =0 or EN = GND	4
Feedback Voltage		0.585	0.6	0.615	V		4
Under-Voltage Lockout Threshold, Wake up VIN Voltage		2.5		2.6	V		4
Under-Voltage Lockout Threshold, Shutdown VIN Voltage		1.8		1.9	V		4
High-Side Switch On-Resistance			80		mΩ	ISW=100mA	4
Low-Side Switch On-Resistance			50		mΩ	ISW=-100mA	4
Upper Switch Current Limit			4		A		4
Over Voltage Protection Threshold			6		V		4
Switching Frequency			1.2		MHz		4
EN Rising Threshold			1.2		V		4
EN Falling Threshold			0.6		V		4
Under-Voltage Lockout Threshold, Hysteresis VIN voltage			600		mV		4
Soft Start			1		mS		4
Thermal Shutdown			160		℃		4
Thermal Hysteresis			30		℃		4
Junction-to-ambient thermal resistance (RθJA)	RθJA		180		°C/W		4
Junction-to-case (top) thermal resistance (RθJC(top))	RθJC(top)		130		°C/W		4
Junction-to-board thermal resistance (RθJB)	RθJB		45		°C/W		4

CAD (KiCad official)

Symbol: SK6613A
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)
3D model files: sk6613a-etched.step / sk6613a-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sk6613a.step / sk6613a.glb are the bare package body.

Provenance

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

Datasheet: Suntek datasheet (12 pp, sha256 ff019edb85987947, retrieved 2026-10-19, 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