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

Name	Last commit message	Last updated
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sk6627-etched.step	sk6627: factory component page (tier=lcsc) · Ray	7d ago
sk6627-hero.glb	sk6627: hero GLB from the etched model (keeps the MPN mark) · Ray	7d ago
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sk6627.step	Publish 0.1.0 · Ray	7d ago

SK6627

Suntek · DC-DC Converters · SOT-563

SK6627 from Suntek, in a SOT-563. 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	Power supply pin with a 4.5 V to 17 V operating input range and an absolute maximum VIN of -0.3 V to 19 V.
2	SW	output	Switching pin connecting the internal power MOSFETs to the inductor, with an absolute maximum of -0.3 V to VIN+1 V (-5 V to VIN+2 V for 10 ns transients).
3	GND	power_in	Ground pin for the device.
4	BS	power_out	Bootstrap pin; a capacitor connected between SW and BS forms the floating supply for the high-side switch driver, with an absolute maximum of -0.3 V to VSW+5 V.
5	EN	input	Enable pin: drive to logic-high (rising threshold 1.4 V) to enable the IC and to logic-low (falling threshold 0.8 V) to disable it into micro-power shutdown, with an absolute maximum of -0.3 V to 19 V.
6	FB	input	Adjustable-version feedback input, connected to the center point of the external resistor divider, with a 0.805 V typical reference and an absolute maximum of -0.3 V to 6 V.

Key specifications

Parameter	Value
Manufacturer	Suntek
Package	SOT-563
Category	Power Management (PMIC)
Pins	6

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		125	°C		3
Operating temperature range		-40		85	°C		3
Input voltage	VIN	4.5		17	V		3
Output current		0		2	A		3
VIN, EN voltage		-0.3		19	V		3
SW voltage		-0.3			V		3
SW voltage (10 ns transient)		-5			V	10 ns transient	3
BS voltage		-0.3			V		3
FB voltage		-0.3		6	V		3
Operating junction temperature	TJ	-40		150	°C		3
Storage temperature	Tstg	-55		150	°C		3
Lead temperature (soldering)				260	°C	Soldering, 10 sec	3
Input voltage range		4.5		17	V		4
Supply current (quiescent)			0.6	0.8	mA	VEN =3.0V	4
Feedback voltage		0.784	0.805	0.825	V		4
Under-voltage lockout threshold, wake up VIN voltage		4.3		4.5	V		4
Under-voltage lockout threshold, shutdown VIN voltage		3.6		3.8	V		4
Supply current (shutdown)			4		uA	VEN =0 or EN = GND	4
High-side switch on-resistance			100		mΩ	ISW=100mA	4
Low-side switch on-resistance			50		mΩ	ISW=-100mA	4
Valley switch current limit			3		A		4
Over voltage protection threshold			19		V		4
Switching frequency			800		KHz		4
Maximum duty cycle			94		%	VFB=90%	4
Minimum off-time			89		nS		4
EN rising threshold			1.4		V		4
EN falling threshold			0.8		V		4
Hysteresis VIN voltage			500		mV		4
Soft start			1.5		mS		4
Thermal shutdown			160		℃		4
Thermal hysteresis			30		℃		4
Junction-to-ambient thermal resistance	RθJA		155		°C/W	JESD 51-7, 4-layer JEDEC board	4
Junction-to-case (top) thermal resistance	RθJC(top)		55		°C/W		4
Junction-to-board thermal resistance	RθJB		30		°C/W		4
Junction-to-top characterization parameter	ψJT		2.5		°C/W		4
Junction-to-board characterization parameter	ψJB		31		°C/W		4

CAD (KiCad official)

Symbol: SK6627
Footprint: Package_TO_SOT_SMD:SOT-563
3D model: SOT-563 (KiCad packages3D, STEP)
3D model files: sk6627-etched.step / sk6627-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sk6627.step / sk6627.glb are the bare package body.

Provenance

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

Datasheet: Suntek datasheet (13 pp, sha256 d1d4f912a6b37dba, retrieved 2026-10-18, 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