component
TPS3705-33DGNR
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, MSOP-8-EP. Pinout cross-checked by two models against the datasheet, 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
markdownTPS3705-33DGNR
Texas Instruments · Supervisor And Reset ICs · MSOP-8-EP
TPS3705-33DGNR from Texas Instruments, in a MSOP-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | RESET | output | Active-low reset output that becomes valid once VDD exceeds 1.1 V and is asserted when VDD falls below the threshold VIT-, with a fixed 200 ms power-up delay; maximum low output current is 5 mA. |
| 2 | WDO | output | Watchdog timer output (TPS3705-xx only); maximum low output current is 5 mA and maximum high output current is -5 mA. |
| 3 | MR | input | Manual reset input; VIH is 0.7 × VDD minimum and VIL is 0.3 × VDD maximum, with input rise and fall rates at MR limited to 100 ns/V. |
| 4 | VDD | power_in | Supply voltage input with a recommended range of 2 V to 6 V and an absolute maximum of 7 V relative to GND. |
| 5 | GND | power_in | Ground reference; all device voltage ratings are stated with respect to GND. |
| 6 | PFI | input | Power-fail comparator input whose voltage must stay within -0.3 V to VDD + 0.3 V. |
| 7 | PFO | output | Power-fail comparator output used to flag a low supply condition; maximum low output current is 5 mA. |
| 8 | WDI | input | Watchdog timer input (TPS3705-xx only); VIH is 0.7 × VDD minimum and VIL is 0.3 × VDD maximum, with input rise and fall rates limited to 100 ns/V. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | MSOP-8-EP |
| Category | Power Management (PMIC) |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
TPS3705-33DGNR - Footprint:
Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm - 3D model: MSOP-8-EP (KiCad packages3D, STEP)
- 3D model files:
tps3705-33dgnr-etched.step/tps3705-33dgnr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps3705-33dgnr.step/tps3705-33dgnr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (37 pp, sha256
367028df3788682f, retrieved 2026-10-08, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).