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LT1963AEST-2.5#PBF
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Analog Devices Linear Voltage Regulators (LDO), SOT-223-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LT1963AEST-2.5#PBF
Analog Devices · Linear Voltage Regulators (LDO) · SOT-223-3
LT1963AEST-2.5#PBF from Analog Devices, in a SOT-223-3. 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 | IN | power_in | Input pin through which power is supplied to the device; the datasheet recommends a 1µF to 10µF bypass capacitor if the device is more than six inches from the main input filter capacitor, and it withstands reverse input voltage with no reverse current. |
| 2 | GND | power_in | Ground pin; the tab is also GND. |
| 3 | OUT | power_out | Regulated output that supplies the load, requiring a minimum 10µF output capacitor to prevent oscillations. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOT-223-3 |
| Category | Power Management ICs |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Regulated Output Voltage | VOUT | 2.462 | 2.5 | 2.538 | V | LT1963A-2.5, VIN = 3V, ILOAD = 1mA | 5 |
| Regulated Output Voltage (full temp) | VOUT | 2.412 | 2.5 | 2.575 | V | LT1963A-2.5, 3.5V < VIN < 20V, 1mA < ILOAD < 1.5A | 5 |
| Minimum Input Voltage | 1.9 | V | ILOAD = 0.5A | 5 | |||
| Minimum Input Voltage | 2.1 | 2.5 | V | ILOAD = 1.5A | 5 | ||
| Line Regulation | 3 | 10 | mV | LT1963A-2.5, ΔVIN = 3V to 20V, ILOAD = 1mA | 5 | ||
| Load Regulation | 2.5 | 15 | mV | LT1963A-2.5, VIN = 3.5V, ΔILOAD = 1mA to 1.5A | 5 | ||
| Load Regulation (full temp) | 30 | mV | LT1963A-2.5, VIN = 3.5V, ΔILOAD = 1mA to 1.5A | 5 | |||
| Dropout Voltage | 0.02 | 0.06 | V | ILOAD = 1mA | 5 | ||
| Dropout Voltage (full temp) | 0.1 | V | ILOAD = 1mA | 5 | |||
| Dropout Voltage | 0.1 | 0.17 | V | ILOAD = 100mA | 5 | ||
| Dropout Voltage (full temp) | 0.22 | V | ILOAD = 100mA | 5 | |||
| Dropout Voltage | 0.19 | 0.27 | V | ILOAD = 500mA | 5 | ||
| Dropout Voltage (full temp) | 0.35 | V | ILOAD = 500mA | 5 | |||
| Dropout Voltage | 0.34 | 0.45 | V | ILOAD = 1.5A | 5 | ||
| Dropout Voltage (full temp) | 0.55 | V | ILOAD = 1.5A | 5 | |||
| GND Pin Current | 1 | 1.5 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 0mA | 5 | ||
| GND Pin Current | 1.1 | 1.6 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 1mA | 5 | ||
| GND Pin Current | 3.8 | 5.5 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 100mA | 5 | ||
| GND Pin Current | 15 | 25 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 500mA | 5 | ||
| GND Pin Current | 80 | 120 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 1.5A | 5 | ||
| Output Voltage Noise | 40 | µVRMS | COUT = 10µF, ILOAD = 1.5A, BW = 10Hz to 100kHz | 5 | |||
| Shutdown Threshold (Off to On) | 0.9 | 2 | V | VOUT = Off to On | 5 | ||
| Shutdown Threshold (On to Off) | 0.25 | 0.75 | V | VOUT = On to Off | 5 | ||
| SHDN Pin Current | 0.01 | 1 | µA | VSHDN = 0V | 5 | ||
| SHDN Pin Current | 3 | 30 | µA | VSHDN = 20V | 5 | ||
| Quiescent Current in Shutdown | 0.01 | 1 | µA | VIN = 6V, VSHDN = 0V | 5 | ||
| Ripple Rejection | 55 | 63 | dB | VIN, VOUT = 1.5V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 0.75A | 6 | ||
| Current Limit | 2 | A | VIN = 7V, VOUT = 0V | 6 | |||
| Current Limit | 1.6 | A | VIN = VOUT(NOMINAL) + 1V, ΔVOUT = -0.1V | 6 | |||
| Input Reverse Leakage Current (ST package) | 2 | mA | ST Package VIN = -20V, VOUT = 0 | 6 | |||
| Reverse Output Current | 600 | 1200 | µA | LT1963A-2.5, VOUT = 2.5V, VIN < 2.5V | 6 | ||
| IN Pin Voltage | -20 | 20 | V | 2 | |||
| OUT Pin Voltage | -20 | 20 | V | 2 | |||
| Input to Output Differential Voltage | -20 | 20 | V | Note 2 | 2 | ||
| SENSE Pin Voltage | -20 | 20 | V | 2 | |||
| SHDN Pin Voltage | -20 | 20 | V | 2 | |||
| Operating Junction Temperature Range | -40 | 125 | °C | LT1963AE (Note 3) | 2 | ||
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Lead Temperature (Soldering, 10 sec) | 300 | °C | 2 | ||||
| Maximum Junction Temperature | TJMAX | 125 | °C | ST package | 2 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 50 | °C/W | ST package, 3-lead SOT-223 | 2 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 42 | °C/W | SOT-223, 2500mm2 topside, 2500mm2 backside, 2500mm2 board area | 19 | ||
| Thermal Resistance Junction-to-Ambient | θJA | 56 | °C/W | SOT-223, 100mm2 topside, 2500mm2 backside, 2500mm2 board area | 19 | ||
| Output Capacitor (minimum) | COUT | 10 | µF | required to prevent oscillations | 13 | ||
| Output Capacitor ESR | ESR | 3 | Ω | maximum ESR allowable | 14 |
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 |
|---|---|---|---|---|
| contacts | COPPER | Table 3. Q Package, 5-Lead DD COPPER AREA THERMAL RESISTANCE | 19 |
CAD (KiCad official)
- Symbol:
LT1963AEST-2.5#PBF - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files:
lt1963aest-2-5-pbf-etched.step/lt1963aest-2-5-pbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt1963aest-2-5-pbf.step/lt1963aest-2-5-pbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (28 pp, sha256
05182936a569ba4b, retrieved 2026-10-31, 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).
# LT1963AEST-2.5#PBF
**Analog Devices** · Linear Voltage Regulators (LDO) · SOT-223-3
LT1963AEST-2.5#PBF from Analog Devices, in a SOT-223-3. 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 | IN | power_in | Input pin through which power is supplied to the device; the datasheet recommends a 1µF to 10µF bypass capacitor if the device is more than six inches from the main input filter capacitor, and it withstands reverse input voltage with no reverse current. |
| 2 | GND | power_in | Ground pin; the tab is also GND. |
| 3 | OUT | power_out | Regulated output that supplies the load, requiring a minimum 10µF output capacitor to prevent oscillations. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOT-223-3 |
| Category | Power Management ICs |
| Pins | 3 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Regulated Output Voltage | VOUT | 2.462 | 2.5 | 2.538 | V | LT1963A-2.5, VIN = 3V, ILOAD = 1mA | 5 |
| Regulated Output Voltage (full temp) | VOUT | 2.412 | 2.5 | 2.575 | V | LT1963A-2.5, 3.5V < VIN < 20V, 1mA < ILOAD < 1.5A | 5 |
| Minimum Input Voltage | | | 1.9 | | V | ILOAD = 0.5A | 5 |
| Minimum Input Voltage | | | 2.1 | 2.5 | V | ILOAD = 1.5A | 5 |
| Line Regulation | | | 3 | 10 | mV | LT1963A-2.5, ΔVIN = 3V to 20V, ILOAD = 1mA | 5 |
| Load Regulation | | | 2.5 | 15 | mV | LT1963A-2.5, VIN = 3.5V, ΔILOAD = 1mA to 1.5A | 5 |
| Load Regulation (full temp) | | | | 30 | mV | LT1963A-2.5, VIN = 3.5V, ΔILOAD = 1mA to 1.5A | 5 |
| Dropout Voltage | | | 0.02 | 0.06 | V | ILOAD = 1mA | 5 |
| Dropout Voltage (full temp) | | | | 0.1 | V | ILOAD = 1mA | 5 |
| Dropout Voltage | | | 0.1 | 0.17 | V | ILOAD = 100mA | 5 |
| Dropout Voltage (full temp) | | | | 0.22 | V | ILOAD = 100mA | 5 |
| Dropout Voltage | | | 0.19 | 0.27 | V | ILOAD = 500mA | 5 |
| Dropout Voltage (full temp) | | | | 0.35 | V | ILOAD = 500mA | 5 |
| Dropout Voltage | | | 0.34 | 0.45 | V | ILOAD = 1.5A | 5 |
| Dropout Voltage (full temp) | | | | 0.55 | V | ILOAD = 1.5A | 5 |
| GND Pin Current | | | 1 | 1.5 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 0mA | 5 |
| GND Pin Current | | | 1.1 | 1.6 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 1mA | 5 |
| GND Pin Current | | | 3.8 | 5.5 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 100mA | 5 |
| GND Pin Current | | | 15 | 25 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 500mA | 5 |
| GND Pin Current | | | 80 | 120 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 1.5A | 5 |
| Output Voltage Noise | | | 40 | | µVRMS | COUT = 10µF, ILOAD = 1.5A, BW = 10Hz to 100kHz | 5 |
| Shutdown Threshold (Off to On) | | | 0.9 | 2 | V | VOUT = Off to On | 5 |
| Shutdown Threshold (On to Off) | | 0.25 | 0.75 | | V | VOUT = On to Off | 5 |
| SHDN Pin Current | | | 0.01 | 1 | µA | VSHDN = 0V | 5 |
| SHDN Pin Current | | | 3 | 30 | µA | VSHDN = 20V | 5 |
| Quiescent Current in Shutdown | | | 0.01 | 1 | µA | VIN = 6V, VSHDN = 0V | 5 |
| Ripple Rejection | | 55 | 63 | | dB | VIN, VOUT = 1.5V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, ILOAD = 0.75A | 6 |
| Current Limit | | | 2 | | A | VIN = 7V, VOUT = 0V | 6 |
| Current Limit | | 1.6 | | | A | VIN = VOUT(NOMINAL) + 1V, ΔVOUT = -0.1V | 6 |
| Input Reverse Leakage Current (ST package) | | | | 2 | mA | ST Package VIN = -20V, VOUT = 0 | 6 |
| Reverse Output Current | | | 600 | 1200 | µA | LT1963A-2.5, VOUT = 2.5V, VIN < 2.5V | 6 |
| IN Pin Voltage | | -20 | | 20 | V | | 2 |
| OUT Pin Voltage | | -20 | | 20 | V | | 2 |
| Input to Output Differential Voltage | | -20 | | 20 | V | Note 2 | 2 |
| SENSE Pin Voltage | | -20 | | 20 | V | | 2 |
| SHDN Pin Voltage | | -20 | | 20 | V | | 2 |
| Operating Junction Temperature Range | | -40 | | 125 | °C | LT1963AE (Note 3) | 2 |
| Storage Temperature Range | | -65 | | 150 | °C | | 2 |
| Lead Temperature (Soldering, 10 sec) | | | | 300 | °C | | 2 |
| Maximum Junction Temperature | TJMAX | | | 125 | °C | ST package | 2 |
| Thermal Resistance Junction-to-Ambient | θJA | | 50 | | °C/W | ST package, 3-lead SOT-223 | 2 |
| Thermal Resistance Junction-to-Ambient | θJA | | 42 | | °C/W | SOT-223, 2500mm2 topside, 2500mm2 backside, 2500mm2 board area | 19 |
| Thermal Resistance Junction-to-Ambient | θJA | | 56 | | °C/W | SOT-223, 100mm2 topside, 2500mm2 backside, 2500mm2 board area | 19 |
| Output Capacitor (minimum) | COUT | 10 | | | µF | required to prevent oscillations | 13 |
| Output Capacitor ESR | ESR | | | 3 | Ω | maximum ESR allowable | 14 |
## 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 |
|---|---|---|---|---|
| contacts | COPPER | | Table 3. Q Package, 5-Lead DD COPPER AREA THERMAL RESISTANCE | 19 |
## CAD (KiCad official)
- Symbol: `LT1963AEST-2.5#PBF`
- Footprint: `Package_TO_SOT_SMD:SOT-223-3_TabPin2`
- 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files: `lt1963aest-2-5-pbf-etched.step` / `lt1963aest-2-5-pbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lt1963aest-2-5-pbf.step` / `lt1963aest-2-5-pbf.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/lt1963a.pdf) (28 pp, sha256 `05182936a569ba4b`, retrieved 2026-10-31, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-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/lt1963aest-2-5-pbf-datasheet.pdf)