SY7201ABC from Silergy Corp, in a SOT-23-6. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	LX	power_out	Inductor switching node. Connect the boost inductor between IN and LX. Absolute maximum rating 36V.
2	GND	power_in	Ground pin. Also serves as the case reference position for θJC measurement.
3	FB	input	Feedback pin. Connect a sense resistor R1 between FB and GND to program the output LED current: IOUT = 0.2V / R1 (VREF ≈ 200mV). FB input current ≈ 1µA max.
4	EN/PWM	input	Enable and PWM dimming control input. VENH ≈ 1.5V (rising), VENL ≈ 0.4V (falling). Absolute maximum 4V. Recommended PWM dimming frequency ≥ 20kHz.
5	OVP	input	Open-LED over-voltage protection sense pin. Output clamp voltage typ. 30V. Absolute maximum rating 36V.
6	IN	power_in	Input supply pin, 2.5V to 30V operating (absolute maximum 32V). Decouple to GND with a 1µF ceramic capacitor. UVLO threshold ≈ 2.4V with 0.1V hysteresis.

Key specifications

Parameter	Value
Manufacturer	Silergy Corp
Package	SOT-23-6
Category	LED-drv
Pins	6

Ordering variants

Same part, different packaging or reel option.

SY7201ABC

CAD (KiCad official)

Symbol: SY7201ABC
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Silergy Corp datasheet (4 pp, sha256 516aabddc0e56eb8, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF