# LT6654AMPS6-3.3#TRMPBF

**Analog Devices** · Voltage References · TSOT-23-6L

LT6654AMPS6-3.3#TRMPBF from Analog Devices, in a TSOT-23-6L. 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 | Internal function pin that must be tied to ground near Pin 2. |
| 2 | GND | power_in | Primary device ground; Pin 1 must be tied to this pin and the load ground should be star-connected to it. |
| 3 | DNC | unconnected | Do not connect; keep leakage current from this pin to VIN or GND to a minimum. Connected internally, so no external circuitry should be applied. |
| 4 | VIN | power_in | Power supply input; bypass with a 0.1µF capacitor to ground. Operating supply range is (VOUT + 0.5V) < VIN < 36V, with absolute maximum VIN of 38V. |
| 5 | DNC | unconnected | Do not connect; keep leakage current from this pin to VIN or GND to a minimum. Connected internally, so no external circuitry should be applied. |
| 6 | VOUT | power_out | Buffered voltage reference output; an output capacitor of 1µF minimum is required for stable operation and the part sources or sinks ±10mA. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | TSOT-23-6L |
| Category | Power Supply Chip |
| 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 Accuracy (LT6654AMP) |  | -0.23 |  | 0.23 | % | LT6654AMP; l = full operating temperature range | 6 |
| Output Voltage Temperature Coefficient (LT6654A) |  |  | 3 | 10 | ppm/°C | LT6654A; l = full operating temperature range; Note 3 | 6 |
| Line Regulation |  |  | 1.2 | 5 | ppm/V | VOUT + 0.5V ≤ VIN ≤ 36V; LT6654-2.048, -2.5, -3, -3.3, -4.096, -5; l | 6 |
| Load Regulation, sourcing |  |  | 3 | 8 | ppm/mA | IOUT(SOURCE) = 10mA; LT6654-2.048, -2.5, -3, -3.3, -4.096, -5; l | 6 |
| Load Regulation, sinking |  |  | 9 | 20 | ppm/mA | IOUT(SINK) = 10mA; LT6654-2.048, -2.5, -3, -3.3, -4.096, -5; l | 6 |
| Dropout Voltage | VIN, VOUT |  | 55 | 100 | mV | ΔVOUT = 0.1%, IOUT = 0mA; LT6654-2.048 to -5; l | 6 |
| Dropout Voltage | VIN, VOUT |  |  | 120 | mV | ΔVOUT = 0.1%, IOUT(SOURCE) = 10mA; LT6654-2.048 to -5; l | 6 |
| Dropout Voltage | VIN, VOUT |  | 50 | 450 | mV | ΔVOUT = 0.1%, IOUT(SINK) = -10mA; LT6654-2.048 to -5; l | 6 |
| Supply Current |  |  | 350 | 600 | µA | No Load; l | 6 |
| Output Short-Circuit Current, short VOUT to GND |  |  | 40 |  | mA | Short VOUT to GND | 6 |
| Output Short-Circuit Current, short VOUT to VIN |  |  | 30 |  | mA | Short VOUT to VIN | 6 |
| Turn-On Time |  |  |  | 150 | µs | 0.1% Settling, CLOAD = 1µF | 7 |
| Long-Term Drift of Output Voltage (S6) |  |  | 60 |  | ppm/√kHr | LT6654S6 (Note 7) | 7 |
| Hysteresis (S6) |  |  |  | 15 | ppm | ΔT = 0°C to 70°C; S6 package (Note 8) | 7 |
| Hysteresis (S6) |  |  |  | 30 | ppm | ΔT = -40°C to 85°C; S6 package (Note 8) | 7 |
| Hysteresis (S6) |  |  |  | 40 | ppm | ΔT = -40°C to 125°C; S6 package (Note 8) | 7 |
| Hysteresis (S6) |  |  |  | 50 | ppm | ΔT = -55°C to 125°C; S6 package (Note 8) | 7 |
| Input Voltage VIN to GND | VIN | -0.3 |  | 38 | V |  | 2 |
| Output Voltage VOUT | VOUT | -0.3 |  |  | V | Maximum is VIN + 0.3V (not a fixed number) | 2 |
| Operating Temperature Range |  | -55 |  | 125 | °C |  | 2 |
| Storage Temperature Range |  | -65 |  | 150 | °C | Note 2 | 2 |
| Maximum Junction Temperature | TJMAX |  |  | 150 | °C | S6 (6-lead TSOT-23) package | 2 |
| Thermal Resistance, junction to ambient | θJA |  | 192 |  | °C/W | S6 (6-lead TSOT-23) package | 2 |
| Input Voltage VIN (recommended maximum) | VIN |  |  | 36 | V | Line regulation condition VOUT + 0.5V ≤ VIN ≤ 36V | 6 |
| Specified Operating Temperature Range (MP-Grade) |  | -55 |  | 125 | °C | MP-Grade | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| housing | abs |  | Plastic mould compounds absorb water. With changes in | 18 |

## CAD (KiCad official)

- Symbol: `LT6654AMPS6-3.3#TRMPBF`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-6`
- 3D model: TSOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `lt6654amps6-3-3-trmpbf-etched.step` / `lt6654amps6-3-3-trmpbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lt6654amps6-3-3-trmpbf.step` / `lt6654amps6-3-3-trmpbf.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Analog Devices datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/lt6654.pdf) (24 pp, sha256 `7793895f1475d122`, retrieved 2026-10-30, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).

[Datasheet PDF](docs/lt6654amps6-3-3-trmpbf-datasheet.pdf)