VRR1202LSX from AnaSem, in a SOT-25. 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	VIN	power_in	Voltage input. Operating range 1.6V to 6.0V (absolute max −0.3V to +7.0V). A 1.0 µF ceramic input capacitor (CIN) between VIN and VSS is recommended for stable input power.
2	VSS	power_in	Power ground reference. Common return for VIN, VOUT, and EN.
3	EN	input	Chip enable input. VENH ≥ 1.2V (up to 6.0V) enables the regulator; VENL ≤ 0.3V (EN = VSS) puts the device into shutdown, disables the P-channel pass MOSFET, and activates the CL auto-discharge (RDIS ≈ 160Ω) to rapidly pull VOUT down to VSS. Internal ~4 MΩ pull-down present.
4	NC	unconnected	No internal connection (open). Leave floating or tie to VSS at user discretion.
5	VOUT	power_out	Regulated output, 1.2V ±1% (VRR1202LSX). Delivers up to 250 mA (current limit typ. 300 mA, short-circuit typ. 40 mA). Requires a ≥1.0 µF low-ESR ceramic output capacitor (CL) between VOUT and VSS placed close to the pin for phase compensation. Must not exceed VIN + 0.3V (parasitic diode to VIN).

Key specifications

Parameter	Value
Manufacturer	AnaSem
Package	SOT-25
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

VRR1202LSX

CAD (KiCad official)

Symbol: VRR1202LSX
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-25 (KiCad packages3D, STEP)

Provenance

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

Datasheet: AnaSem datasheet (29 pp, sha256 9185c7030a87d3ad, 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