TPS61169DCKR from Texas Instruments, in a SC-70-5. 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	SW	power_out	Drain connection of the internal power N-channel FET (40V, 1.8A, 0.35Ω typical RDS(on)). Connect to the inductor and Schottky diode of the boost stage. Open LED protection monitors this node against the 37.5V typical OVP threshold.
2	GND	power_in	Device ground. Reference for all internal circuitry and the FB sense resistor return. Connect directly to the system ground plane with low impedance.
3	FB	input	Current feedback pin. Connect a current-sense resistor (RSET) from FB to GND to program LED current as ILED = VFB / RSET. Regulated to 204mV typical (188-220mV) at 100% CTRL duty; FB bias current ≤2.5µA.
4	CTRL	input	PWM dimming and enable input. Logic high threshold 1.2V (min), logic low 0.4V (max), with an internal ~300kΩ pull-down. Apply a 5-100kHz PWM signal (1%-100% duty) to modulate the effective FB reference (VFB = Duty × 204mV) for LED brightness dimming. Holding CTRL low for >2.5ms places the device in shutdown.
5	VIN	power_in	Supply input pin. Operating range 2.7V to 5.5V (7V absolute max). UVLO threshold ~2V (2.3V rising / 2.0V falling typical) with 200mV hysteresis. Quiescent current 0.3mA typical while switching; 1µA typical in shutdown. Bypass with a ≥1µF ceramic capacitor to GND close to the pin.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-5
Category	LED Drivers
Pins	5

Ordering variants

Same part, different packaging or reel option.

TPS61169DCKR
TPS61169DCKRDCKT

CAD (KiCad official)

Symbol: TPS61169DCKR
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SC-70-5 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Texas Instruments datasheet (24 pp, sha256 7d0b8ace2459a9fd, 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