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LTC2950ITS8-1#TRMPBF
Public Made by Adomby adom
Analog Devices Supervisor And Reset ICs, TSOT-23-8. 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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Datasheet
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README
markdownLTC2950ITS8-1#TRMPBF
Analog Devices · Supervisor And Reset ICs · TSOT-23-8
LTC2950ITS8-1#TRMPBF from Analog Devices, in a TSOT-23-8. 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 | VIN | power_in | Power supply input with an operating range of 2.7V to 26.4V. |
| 2 | PB | input | Pushbutton input (switch to ground) with an internal 100k pull-up to a 1.9V bias, which can be pulled up externally to 26.4V without extra current draw. |
| 3 | ONT | passive | Additional adjustable turn-on time input; a capacitor to ground sets the extra PB debounce time beyond the internal 32ms default, and floating the pin gives 32ms. |
| 4 | GND | power_in | Device ground. |
| 5 | INT | output | Open-drain interrupt output that is pulled low after a pushbutton turn-off event to signal the µP to power down, and that releases the enable output when KILL is driven low (or immediately if tied to KILL). |
| 6 | EN/EN | output | Open-drain enable output (high-true EN on the LTC2950-1) that is asserted high after a valid PB turn-on and released low if KILL is not driven high within 512ms, KILL is driven low in normal operation, or a second valid PB event occurs; operating range is 0V to 10V and a pull-up is required when the load has none. |
| 7 | OFFT | passive | Additional adjustable turn-off time input; a capacitor to ground sets the extra PB hold time before power-down begins, and floating the pin gives the 32ms default. |
| 8 | KILL | input | KILL input; forcing it low releases the enable output, it has an accurate 0.6V threshold, it is blanked for 512ms after turn-on, and it can be used as a voltage monitor input. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | TSOT-23-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN Supply Voltage Range | VIN | 2.7 | 26.4 | V | Steady State Operation | 3 | |
| VIN Supply Current | IIN | 6 | 12 | µA | System Power On, VIN = 2.7V to 24V | 3 | |
| VIN Undervoltage Lockout | VUVL | 2.2 | 2.3 | 2.4 | V | VIN Falling | 3 |
| VIN Undervoltage Lockout Hysteresis | VUVL(HYST) | 50 | 300 | 600 | mV | 3 | |
| PB Voltage Range | VPB(MIN, MAX) | -1 | 26.4 | V | Single-Ended | 3 | |
| PB Input Threshold | VPB(VTH) | 0.6 | 0.8 | 1 | V | PB Falling | 3 |
| PB Open Circuit Voltage | VPB(VOC) | 1 | 1.6 | 2 | V | IPB = -1µA | 3 |
| EN/EN Lock Out Time | tEN/EN, Lock Out | 200 | 256 | 325 | ms | Enable Released → Enable Asserted | 3 |
| EN/EN Leakage Current | IEN/EN(LKG) | -0.1 | 0.1 | µA | VEN/EN = 1V, Sink Current Off | 3 | |
| EN/EN Voltage Output Low | VEN/EN(VOL) | 0.11 | 0.4 | V | IEN/EN = 3mA | 3 | |
| ONT/OFFT Pull Up Current | IONT, OFFT(PU) | -2.4 | -3 | -3.6 | µA | VONT, OFFT = 0V | 3 |
| ONT/OFFT Pull Down Current | IONT, OFFT(PD) | 2.4 | 3 | 3.6 | µA | VONT, OFFT = 1.3V | 3 |
| Internal Turn On Debounce Time | tDB, On | 26 | 32 | 41 | ms | ONT Pin Float, PB Falling → Enable Asserted | 3 |
| Additional Adjustable Turn On Time | tONT | 9 | 11.5 | 13.5 | ms | CONT = 1500pF | 3 |
| Internal Turn Off Debounce Time | tDB, Off | 26 | 32 | 41 | ms | OFFT Pin Float, PB Falling → INT Falling | 3 |
| Additional Adjustable Turn Off Time | tOFFT | 9 | 11.5 | 13.5 | ms | COFFT = 1500pF | 3 |
| INT Leakage Current | IINT(LKG) | -1 | 1 | µA | VINT = 3V | 3 | |
| INT Output Voltage Low | VINT(VOL) | 0.11 | 0.4 | V | IINT = 3mA | 3 | |
| KILL Input Threshold Voltage | VKILL(TH) | 0.57 | 0.6 | 0.63 | V | KILL Falling | 3 |
| KILL Input Threshold Hysteresis | VKILL(HYST) | 10 | 30 | 50 | mV | 3 | |
| KILL Leakage Current | IKILL(LKG) | -0.1 | 0.1 | µA | VKILL = 0.6V | 3 | |
| KILL Minimum Pulse Width | tKILL(PW) | 30 | µs | 3 | |||
| KILL Propagation Delay | tKILL(PD) | 30 | µs | KILL Falling → Enable Released | 3 | ||
| KILL Turn On Blanking | tKILL, On Blank | 400 | 512 | 650 | ms | KILL = Low, Enable Asserted → Enable Released | 3 |
| KILL Turn Off Delay | tKILL, Off Delay | 800 | 1024 | 1300 | ms | KILL = High, INT Asserted → Enable Released | 3 |
| VIN Absolute Maximum Supply Voltage | VIN | -0.3 | 33 | V | 2 | ||
| PB Input Voltage Absolute Maximum | PB | -6 | 33 | V | 2 | ||
| ONT Input Voltage Absolute Maximum | ONT | -0.3 | 2.7 | V | 2 | ||
| OFFT Input Voltage Absolute Maximum | OFFT | -0.3 | 2.7 | V | 2 | ||
| KILL Input Voltage Absolute Maximum | KILL | -0.3 | 7 | V | 2 | ||
| INT Output Voltage Absolute Maximum | INT | -0.3 | 10 | V | 2 | ||
| EN/EN Output Voltage Absolute Maximum | EN/EN | -0.3 | 10 | V | 2 | ||
| Storage Temperature Range (TSOT-23) | TSTG | -65 | 150 | °C | TS8 TSOT-23 package | 2 | |
| Lead Temperature (Soldering, 10 sec) | 300 | °C | Soldering, 10 sec | 2 | |||
| Maximum Junction Temperature | TJMAX | 125 | °C | TS8 package | 2 | ||
| Operating Temperature Range (LTC2950I-1) | TA | -40 | 85 | °C | LTC2950I-1 | 2 | |
| Thermal Resistance Junction-to-Ambient (TSOT-23) | θJA | 140 | °C/W | TS8 package | 2 |
CAD (KiCad official)
- Symbol:
LTC2950ITS8-1#TRMPBF - Footprint:
Package_TO_SOT_SMD:TSOT-23-8 - 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files:
ltc2950its8-1-trmpbf-etched.step/ltc2950its8-1-trmpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltc2950its8-1-trmpbf.step/ltc2950its8-1-trmpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (18 pp, sha256
f02460b98a36fa59, retrieved 2026-10-19, tier: lcsc) - 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).