GT8021S5 from GTIC, in a SOT-23-5. 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	OUT	output	Amplifier output. Rail-to-rail output stage, swings within 30 mV of the supply rails; sources/sinks >100 mA typical.
2	V-	power_in	Negative (lowest) power supply. Ground in single-supply operation, or the negative rail (down to -2.75 V) in dual-supply operation. Supply span (V+)-(V-) must be 2.5 V to 5.5 V (abs max 6.5 V).
3	+IN	input	Non-inverting (positive) input. Common-mode range extends beyond the supplies (V- -0.3 V to V+ +0.5 V absolute max). CMOS gate: Ib ~ +/-1 pA typ.
4	-IN	input	Inverting (negative) input. CMOS gate: Ib ~ +/-1 pA typ, differential input impedance ~10^13 ohm
5	V+	power_in	Positive (highest) power supply. +2.5 V to +5.5 V single-supply, or up to +2.75 V in dual-supply mode. Decouple with a 0.1 uF ceramic close to the pin.

Key specifications

Parameter	Value
Manufacturer	GTIC
Package	SOT-23-5
Category	Op-amp/Cmp
Pins	5

Ordering variants

Same part, different packaging or reel option.

GT8021S5C5
GT8021S5BC5
GT8021S5
GT8021S5BS5
GT8021S5M8
GT8021S5P8

CAD (KiCad official)

Symbol: GT8021S5
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: GTIC datasheet (20 pp, sha256 7c6f7d5f54d8df88, retrieved 2026-08-17, tier: lcsc)
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