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TPS3838K33DBVR
Public Unreviewedby Ray
Texas Instruments Supervisor and Reset ICs, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS3838K33DBVR
Texas Instruments · Supervisor and Reset ICs · SOT-23-5
TPS3838K33DBVR 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 | CT | input | Reset delay time select input. Tie to GND for a typical 10 ms reset delay; tie to VDD for a typical 200 ms reset delay. High-impedance CMOS input (IIH/IIL ±25 nA, CI ≈ 5 pF); must not be left floating. |
| 2 | GND | power_in | Device ground reference. All voltages in the datasheet are measured with respect to this pin. |
| 3 | MR | input | Manual Reset input, active low. Internally pulled up to VDD through a ~30 kΩ resistor; asserting MR low forces RESET active (open-drain low). Tie to VDD if unused to minimize current consumption. Recommended input transition rate ≤100 ns/V. |
| 4 | RESET | output | Open-drain active-low reset output (TPS3838 variant). Pulled low while VDD < VIT (2.93 V typ for K33) or MR is asserted, and held low for the selected reset delay after VDD rises above VIT. Requires an external pull-up resistor to VDD; sink current IOL up to 2 mA at VOL ≤ 0.4 V. |
| 5 | VDD | power_in | Supply voltage input, recommended operating range 1.6 V to 6 V (absolute max 7 V). Monitored against the internal K33 threshold VIT = 2.93 V typical. Bypass with a 0.1 µF ceramic capacitor close to 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.
TPS3838K33DBVRTPS3838K33DBVRDBVTTPS3838K33DBVRDRVRTPS3838K33DBVRDRVT
CAD (KiCad official)
- Symbol:
TPS3838K33DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (21 pp, sha256
811fc01066767401, 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).