XL297 from XINLUDA, in a SOP-20-300mil. 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	SYNC	bidirectional	Output of the on-chip chopper oscillator; SYNC pins of multiple XL297s are tied together, and an external clock source is injected here.
2	GND	power_in	Ground connection.
3	HOME	output	Open collector output that indicates the initial state (ABCD = 0101); the transistor is open when this signal is active.
4	A	output	Motor phase A drive signal for the power stage.
5	INH1	output	Active low inhibit control for the driver stage of phases A and B, also used by the chopper to regulate load current when CONTROL is low.
6	B	output	Motor phase B drive signal for the power stage.
7	C	output	Motor phase C drive signal for the power stage.
8	INH2	output	Active low inhibit control for the drive stages of phases C and D, with the same functions as INH1.
9	D	output	Motor phase D drive signal for the power stage.
10	ENABLE	input	Chip enable input; when low (inactive) INH1, INH2, A, B, C and D are brought low.
11	CONTROL	input	Control input defining chopper action: when low the chopper acts on INH1 and INH2, when high on phase lines ABCD.
12	Vs	power_in	5V supply input, 4.75 V min to 7 V max.
13	SENS2	input	Input for load current sense voltage from the power stages of phases C and D.
14	SENS1	input	Input for load current sense voltage from the power stages of phases A and B.
15	Vref	power_in	Reference voltage for the chopper circuit that determines the peak load current, 0 to 3 V input range.
16	OSC	passive	RC network (R to VCC, C to ground) sets the chopper rate, f ≈ 1/0.69RC; grounded on all but one device in synchronized multi-XL297 configurations.
17	CW/CCW	input	Clockwise/counterclockwise direction control input, synchronized internally so direction can be changed at any time.
18	CLOCK	input	Step clock; an active low pulse advances the motor one increment, with the step occurring on the rising edge.
19	HALF/FULL	input	Half/full step mode select input; high selects half step mode, low selects normal or wave drive depending on translator state.
20	RESET	input	Reset input that restores the translator to state 1 (ABCD = 0101).

Key specifications

Parameter	Value
Manufacturer	XINLUDA
Package	SOP-20-300mil
Category	Power Management ICs
Pins	20

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply voltage (pin 12)	Vs	4.75		7	V		7
Quiescent supply current (pin 12)	Is		50	80	mA	Outputs floating	7
Input voltage low (pins 11, 17, 18, 19, 20)	Vi			0.6	V	Low	7
Input voltage high (pins 11, 17, 18, 19, 20)	Vi	2			V	High	7
Input current (pins 11, 17, 18, 19, 20)	Ii			100	A	Vi = L	7
Input current (pins 11, 17, 18, 19, 20)	Ii			10	A	Vi = H	7
Enable input current (pin 10)	Ien			100	A	Ven = L	7
Enable input current (pin 10)	Ien			10	A	Ven = H	7
Phase output voltage low (pins 4, 6, 7, 9)	VOL			0.4	V	Io = 10mA	7
Phase output voltage high (pins 4, 6, 7, 9)	VOH	3.9			V	Io = 5mA	7
Inhibit output voltage low (pins 5, 8)	Vinh L			0.4	V	Io = 10mA	7
Inhibit output voltage high (pins 5, 8)	Vinh H	3.9			V	Io = 5mA	7
Sync output voltage high	VSYNC H	3.3			V	Io = 5mA	7
Sync output voltage (second level as printed)	VSYNC V			0.8	V	Io = 5mA	7
Leakage current (pin 3)	Ileak			1	A	VCE = 7 V	8
Saturation voltage (pin 3)	Vsat			0.4	V	I = 5 mA	8
Comparator offset voltage (pins 13, 14, 15)	Voff			5	mV	Vref = 1 V	8
Comparator bias current (pins 13, 14, 15)	Io	-100		10	A		8
Input reference voltage (pin 15)	Vref	0		3	V		8
Clock time	tCLK	0.5			s		8
Set up time	tS	1			s		8
Hold time	tH	4			s		8
Reset time	tR	1			s		8
Reset to clock delay	tRCLK	1			s		8
Thermal resistance junction-ambient (SOP20)	Rth-j-amb			100	C/W	SOP20 package	5
Operating temperature range		-40		85	°C	Temperature range per ordering information table	9

CAD (KiCad official)

Symbol: XL297
Footprint: Package_SO:SOP-20_7.5x12.8mm_P1.27mm
3D model: SOP-20-300mil, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 2.65 mm nominal SOIC height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
3D model files: xl297-etched.step / xl297-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xl297.step / xl297.glb are the bare package body.

Provenance

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

Datasheet: XINLUDA datasheet (10 pp, sha256 d98bfa02a9114b0f, retrieved 2026-11-05, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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

XL297

Verified XL297

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3D Model

Symbol & Footprint

Schematic Symbol

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Datasheet

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