PAM2305AABADJ from Diodes Incorporated, in a TSOT-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	Chip main power supply pin. Input voltage range 2.5V to 5.5V (abs max 6.0V). Bypass to GND with a 10 uF ceramic capacitor placed as close as possible to this pin.
2	GND	power_in	Device ground reference for input, output and control signals. All voltages are referenced to this pin.
3	EN	input	Enable Control Input. Force this pin above VEH = 1.5V (min) to enable the converter; drive below VEL = 0.3V (max) to shut down the device (ISD < 1 uA). Do not leave floating. Abs max -0.3V to VIN.
4	VOUT/FB	input	Adjustable-output feedback pin. Connect to a resistor divider (R1 top, R2 to GND) from VOUT so the internal error amplifier regulates this node to the 0.6V (typ) reference: VOUT = 0.6V * (1 + R1/R2). On fixed-output part numbers this pin ties directly to VOUT through an internal divider; on the ADJ variant only the FB function is used.
5	SW	power_out	Switching node. Common drain of the internal P-channel main MOSFET (RDS(on) ~0.3 ohm) and N-channel synchronous rectifier (RDS(on) ~0.35 ohm). Connect to the external 4.7 uH inductor to VOUT. Peak inductor current is limited to ~1.5A. Abs max -0.3V to (VIN+0.3V).

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	TSOT-25
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

PAM2305AABADJ
PAM2305AABADJAAB330
PAM2305AABADJAAB280
PAM2305AABADJAAB250
PAM2305AABADJAAB180
PAM2305AABADJAAB150
PAM2305AABADJAAB120
PAM2305AABADJCGFADJ
PAM2305AABADJCGF330
PAM2305AABADJCGF280
PAM2305AABADJCGF250
PAM2305AABADJCGF180
PAM2305AABADJCGF150
PAM2305AABADJCGF120
PAM2305AABADJBJEADJ
PAM2305AABADJBJE330
PAM2305AABADJBJE280
PAM2305AABADJBJE250
PAM2305AABADJBJE180
PAM2305AABADJBJE150
PAM2305AABADJBJE120

CAD (KiCad official)

Symbol: PAM2305AABADJ
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: TSOT-25 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`pam2305aabadj.step`	85 KB	You want the bare part, or you mark your own boards.
`pam2305aabadj-etched.step`	2.3 MB	You want the part with `PAM2305AABADJ` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 574 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: Diodes Incorporated datasheet (17 pp, sha256 4916f455ea4c71db, 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