RT9048GSP from Richtek Tech, in a SOIC-8. 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	NC	unconnected	No internal connection.
2	EN	input	Enable control input (Active-High). Pulling below 0.4V turns the regulator off, reducing quiescent current to ~1.5μA. Enable threshold typ. 1.08V rising / 1.02V falling at VIN=3.3V. Device is enabled if left open; connect to VIN if not used.
3	VIN	power_in	Supply voltage input. For full-load regulation, input must be between (VOUT + 0.5V) and 6V. Minimum input voltage is 1.4V. Place a large bulk cap plus at least a 10μF ceramic capacitor directly at this pin.
4	NC	unconnected	No internal connection.
5	NC	unconnected	No internal connection.
6	VOUT	power_out	Regulated output voltage, adjustable from 0.5V up to VIN − VDROP, sourcing up to 2A. Place a minimum 10μF ceramic capacitor directly at this pin for stability.
7	ADJ	input	Feedback voltage input, VADJ = 0.5V (typ). If tied to VOUT, output is set to 0.5V. Otherwise VOUT = 0.5V × (1 + R1/R2) via an external resistor divider. Very low IADJ (~20nA) permits divider resistors up to 800kΩ.
8	GND	power_in	Ground pin.
9	GND	power_in	Exposed thermal pad (bottom of package). Must be soldered to a large PCB ground plane and connected to GND for maximum power dissipation (θJA = 49°C/W on a 4-layer JEDEC board).

Key specifications

Parameter	Value
Manufacturer	Richtek Tech
Package	SOIC-8
Category	PMIC
Pins	9

Ordering variants

Same part, different packaging or reel option.

RT9048GSP

CAD (KiCad official)

Symbol: RT9048GSP
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`rt9048gsp.step`	122 KB	You want the bare part, or you mark your own boards.
`rt9048gsp-etched.step`	2.3 MB	You want the part with `RT9048GSP` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 552 faces against 147 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: Richtek Tech datasheet (10 pp, sha256 30e87f006b6037f4, 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