HT6501ARTZ from HTCSEMI, in a SOT23-5. 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	D1	output	Drain 1. Open-drain output of internal N-channel power switch Q1; connects to one end of the center-tapped transformer primary. Rated up to 14 V and 500 mA peak (350 mA max continuous at Vcc = 5 V, 150 mA at 3.3 V).
2	VCC	power_in	Supply voltage input. Recommended operating range 3 V to 5.5 V (absolute max -0.3 V to +6 V). Connects to the center-tap of the transformer primary in typical push-pull operation.
3	D2	output	Drain 2. Open-drain output of internal N-channel power switch Q2; connects to the other end of the center-tapped transformer primary. Rated up to 14 V and 500 mA peak (350 mA max continuous at Vcc = 5 V, 150 mA at 3.3 V).
4	GND	power_in	Ground. Return for the internal N-channel power switches and control logic. Pins 4 and 5 are both GND and should be tied together to the board ground plane.
5	GND	power_in	Ground. Return for the internal N-channel power switches and control logic. Pins 4 and 5 are both GND and should be tied together to the board ground plane.

Key specifications

Parameter	Value
Manufacturer	HTCSEMI
Package	SOT23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

HT6501ARTZ

CAD (KiCad official)

Symbol: HT6501ARTZ
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT23-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: HTCSEMI datasheet (21 pp, sha256 e12c487ffaa0be82, 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