TPS3828-33DBVR from Texas Instruments, in a SOT-23-5. 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	RESET	output	Active-low reset output, open-drain (TPS3828). Asserted low when VDD is below the 2.93 V threshold (VIT-), when MR is held low, or when the watchdog fails to be retriggered within tt(out). Requires an external pull-up resistor to a supply rail. IOL up to 1.2 mA at VOL <= 0.4 V.
2	GND	power_in	Ground reference for the device. All voltages are referenced to this pin.
3	MR	input	Manual reset input, active low. A low level on MR forces RESET active. Includes an internal 52 kOhm pull-up to VDD, so the pin may be left open if unused. VIL <= 0.3 x VDD; VIH >= 0.7 x VDD.
4	WDI	input	Watchdog input. A positive or negative transition on WDI within the watchdog timeout tt(out) (typ. 1.6 s) resets the watchdog timer. Failure to retrigger drives RESET active for td. Leaving WDI unconnected disables the watchdog. Minimum pulse width 100 ns.
5	VDD	power_in	Positive supply voltage input, monitored against the 2.93 V (typ) negative-going threshold VIT-. Operating range 1.1 V to 5.5 V (absolute max 6 V). Supply current IDD is typ. 15 uA (max 25 uA). A 0.1 uF ceramic bypass capacitor is recommended near the pin.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

TPS3828-33DBVR
TPS3828-33DBVRG4
TPS3828-33DBVRDBVT
TPS3828-33DBVRDBVTG4

CAD (KiCad official)

Symbol: TPS3828-33DBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`tps3828-33dbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`tps3828-33dbvr-etched.step`	3.0 MB	You want the part with `TPS3828-33DBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 711 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: Texas Instruments datasheet (18 pp, sha256 47c6c606c2571e78, 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