CBM8051AST5 from Corebai Microelectronics, 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 voltage swing; typical swing within 30 mV of rails into 150Ω, 8 mV into >1kΩ. Output current is 130 mA typ (100 mA min).
2	VSS	power_in	Negative supply / ground rail. Single-supply operation: connect to GND. Dual-supply operation: -1.25V to -2.75V. Bypass to ground with 0.1 µF ceramic capacitor when using dual supply.
3	IN+	input	Non-inverting analog input. Input common-mode range -0.2 V to +3.8 V (Vs = 5 V). Input bias current 1 pA typ, input offset current 2 pA typ. Absolute max: Vss-0.5V to VDD+0.5V.
4	IN-	input	Inverting analog input. Input common-mode range -0.2 V to +3.8 V (Vs = 5 V). Input bias current 1 pA typ. Absolute max: Vss-0.5V to VDD+0.5V.
5	VDD	power_in	Positive supply. Single-supply operation 2.5 V to 5.5 V; dual supply ±1.25 V to ±2.75 V. Quiescent current 2.8 mA typ per amplifier. Bypass to ground with 0.1 µF ceramic capacitor placed close to pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

CBM8051AST5
CBM8051AC5
CBM8051NST6
CBM8051NC6
CBM8052AS8
CBM8052AMS8
CBM8052NMS10
CBM8054AS14
CBM8054ATS14

CAD (KiCad official)

Symbol: CBM8051AST5
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: Corebai Microelectronics datasheet (22 pp, sha256 b126c112f37afcf8, 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