TPS3823-33DBVR 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. Asserts low when VDD drops below the 2.93 V threshold (VIT-) or when MR is pulled low, and stays low for the reset delay td (200 ms typ) after VDD returns above threshold. Push-pull output, VOH >= 0.8*VDD at IOH = -30 µA, VOL <= 0.4 V at IOL = 1.2 mA.
2	GND	power_in	Ground reference for the device. All voltages are with respect to this pin.
3	MR	input	Manual reset input, active low. A logic low on MR forces RESET active; RESET stays asserted for td (200 ms typ) after MR returns high. VIH >= 0.7VDD, VIL <= 0.3VDD, minimum pulse width 1 µs. Has an internal ~52 kΩ pull-up to VDD, so may be left open if unused.
4	WDI	input	Watchdog input. Must see a rising or falling transition within the watchdog timeout t_tout (1.6 s typ on TPS3823) or RESET is asserted for td (200 ms typ). VIH >= 0.7VDD, VIL <= 0.3VDD, minimum pulse width 100 ns. Leave floating/unconnected to disable the watchdog.
5	VDD	power_in	Supply input, 1.1 V to 5.5 V operating range (6 V absolute maximum). Monitored against the internal 2.93 V threshold (VIT-, TPS3823-33). Bypass with a 0.1 µF ceramic capacitor near the pin for threshold stability.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

TPS3823-33DBVR
TPS3823-33DBVRDBVT
TPS3823-33DBVRG4
TPS3823-33DBVRDBVTG4

CAD (KiCad official)

Symbol: TPS3823-33DBVR
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
`tps3823-33dbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`tps3823-33dbvr-etched.step`	3.0 MB	You want the part with `TPS3823-33DBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 703 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 (20 pp, sha256 3ebfe3b960824597, 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