NDP36501SE-R from NDP, in a SOT-23-6. 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	Power input. Accepts 6V to 60V supply (absolute max 65V). Bypass locally to GND with a bulk (e.g. 47µF) and a ceramic (e.g. 1µF) capacitor.
2	RS	input	Current-sense feedback input. Connect the sense resistor between VIN and RS to set LED current; the part regulates VIN-VRS to a 200 mV (typ) average feedback voltage. RS-to-GND absolute range is (VIN-5V) to VIN.
3	EN/DIM	input	Enable and PWM/analog dimming input. Below ~0.3V the part is shut down; enable threshold ~0.3V (typ) with ~30 mV hysteresis. Supports PWM dimming from 0.1 kHz to 20 kHz; internal 1.5µA pull-up to 5V and 25µA pull-down to GND.
4	GND	power_in	Device ground return for the controller and gate driver.
5	DRV	output	External NMOS gate driver output. High level ~5.5V (VCC), source resistance ~1.4Ω, sink resistance ~0.5Ω. Minimum ON time 120 ns, minimum OFF time 130 ns, maximum switching frequency 1 MHz.
6	VCC	power_out	Internal LDO output / gate-drive rail. Typically 6V (5.5V min) with UVLO rising threshold ~5.7V and ~1.1V hysteresis. Bypass to GND with a ceramic capacitor (e.g. 2.2µF); do not load externally.

Key specifications

Parameter	Value
Manufacturer	NDP
Package	SOT-23-6
Category	LED-drv
Pins	6

Ordering variants

Same part, different packaging or reel option.

NDP36501SE-R

CAD (KiCad official)

Symbol: NDP36501SE-R
Footprint: Package_TO_SOT_SMD:SOT-23-6
3D model: SOT-23-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`ndp36501se-r.step`	97 KB	You want the bare part, or you mark your own boards.
`ndp36501se-r-etched.step`	2.3 MB	You want the part with `NDP36501SE-R` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 566 faces against 117 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: NDP datasheet (11 pp, sha256 bda0497751a6282a, 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