component
TPS25921ADR
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, SOIC-8. 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
markdownTPS25921ADR
Texas Instruments · Supervisor And Reset ICs · SOIC-8
TPS25921ADR from Texas Instruments, in a SOIC-8. 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 | GND | power_in | Ground reference for all circuit operations and voltage measurements. |
| 2 | SS | input | Soft-start control pin; external capacitor sets output voltage ramp rate during power-on with charging current of 0.9 to 1.2 µA typical and maximum capacitor voltage of 5.5 V. |
| 3 | ENUV | input | Enable and undervoltage lockout input; external resistor divider programs UVLO threshold with rising threshold of 1.36 to 1.42 V, and voltage below 0.5 to 0.8 V resets thermal fault latch in TPS25921L. |
| 4 | IN | power_in | Power input pin; accepts supply voltage from 4.5 V to 18 V nominal (20 V maximum for 10 ms transient). |
| 5 | OUT | power_out | Power output pin; delivers current-limited power to the load with output voltage regulation and soft-start ramp control. |
| 6 | FLT | output | Fault indicator output (open-drain); active-low signal for undervoltage, overvoltage, or thermal shutdown faults with pull-down resistance of 22 to 32 Ω. |
| 7 | ILIM | input | Current limit programming input; external resistor from this pin to GND sets overcurrent limit from 0.4 A to 1.6 A with ±2% accuracy at 1 A and bias current of 6 to 16 µA. |
| 8 | OVP | input | Overvoltage protection input; external resistor divider programs overvoltage threshold with rising trip point of 1.35 to 1.43 V, triggering output disable when exceeded. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TPS25921ADR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tps25921adr-etched.step/tps25921adr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps25921adr.step/tps25921adr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
c4fc910bc1512651, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).