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LT1790BIS6-1.25#TRMPBF
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Analog Devices Voltage References, TSOT-23-6. 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
markdownLT1790BIS6-1.25#TRMPBF
Analog Devices · Voltage References · TSOT-23-6
LT1790BIS6-1.25#TRMPBF from Analog Devices, in a TSOT-23-6. 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 | GND | power_in | Ground pin, tied to pin 2 in the typical application circuit. |
| 2 | GND | power_in | Ground pin, tied to pin 1 in the typical application circuit. |
| 3 | DNC | unconnected | Do not connect. |
| 4 | VIN | power_in | Supply input; 2.6V ≤ VIN ≤ 18V in the typical application, absolute maximum 20V, bypassed with 0.1µF. |
| 5 | DNC | unconnected | Do not connect. |
| 6 | VOUT | output | Reference output (1.25V for this variant, 1.24875V to 1.25125V for B grade at 25°C), sources and sinks current, with a 1µF output capacitor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | TSOT-23-6 |
| Category | Power Management ICs |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage (LT1790BI, 25C) | VOUT | 1.24875 | 1.25 | 1.25125 | V | LT1790B, TA = 25°C, VIN = 2.6V, CL = 1µF | 4 |
| Output Voltage Accuracy (LT1790B, 25C) | -0.1 | 0.1 | % | LT1790B, TA = 25°C | 4 | ||
| Output Voltage (LT1790BI over temperature) | VOUT | 1.24484 | 1.25 | 1.25516 | V | LT1790BI, over specified temperature range | 4 |
| Output Voltage Accuracy (LT1790BI over temperature) | -0.4125 | 0.4125 | % | LT1790BI, over specified temperature range | 4 | ||
| Output Voltage Temperature Coefficient | 12 | 25 | ppm/°C | LT1790B, TMIN ≤ TA ≤ TMAX | 4 | ||
| Line Regulation | 50 | 170 | ppm/V | 2.6V ≤ VIN ≤ 18V; max 220 over temperature | 4 | ||
| Line Regulation (over temperature) | 220 | ppm/V | 2.6V ≤ VIN ≤ 18V, over temperature | 4 | |||
| Load Regulation, Source | 100 | 160 | ppm/mA | IOUT Source = 5mA, VIN = 2.8V | 4 | ||
| Load Regulation, Source (over temperature) | 250 | ppm/mA | IOUT Source = 5mA, VIN = 2.8V, over temperature | 4 | |||
| Load Regulation, Sink | 120 | 180 | ppm/mA | IOUT Sink = 1mA, VIN = 3.2V | 4 | ||
| Load Regulation, Sink (over temperature) | 250 | ppm/mA | IOUT Sink = 1mA, VIN = 3.2V, over temperature | 4 | |||
| Supply Current | 35 | 60 | µA | No Load, VIN = 2.6V | 5 | ||
| Supply Current (over temperature) | 75 | µA | No Load, over temperature | 5 | |||
| Minimum Operating Current, Negative Output | 100 | 125 | µA | VOUT = -1.25V, ±0.1% | 5 | ||
| Turn-On Time | 250 | µs | CLOAD = 1µF | 5 | |||
| Output Noise 0.1Hz to 10Hz | 10 | µVP-P | 0.1Hz ≤ f ≤ 10Hz | 5 | |||
| Output Noise 10Hz to 1kHz | 14 | µVRMS | 10Hz ≤ f ≤ 1kHz | 5 | |||
| Long-Term Drift of Output Voltage | 50 | ppm/√kHr | 5 | ||||
| Hysteresis | 40 | ppm | ΔT = -40°C to 85°C | 5 | |||
| Specified Temperature Range (Industrial) | -40 | 85 | °C | 2 | |||
| Operating Temperature Range | -40 | 125 | °C | Note 2 | 2 | ||
| Storage Temperature Range | -65 | 150 | °C | Note 3 | 2 | ||
| Maximum Junction Temperature | TJMAX | 150 | °C | 2 | |||
| Thermal Resistance Junction to Ambient | θJA | 230 | °C/W | S6 package | 2 |
CAD (KiCad official)
- Symbol:
LT1790BIS6-1.25#TRMPBF - Footprint:
Package_TO_SOT_SMD:TSOT-23-6 - 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
lt1790bis6-1-25-trmpbf-etched.step/lt1790bis6-1-25-trmpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt1790bis6-1-25-trmpbf.step/lt1790bis6-1-25-trmpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (26 pp, sha256
34dc0fbeb1f9b369, retrieved 2026-10-30, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).