component
LT1963AEST-3.3#TRPBF
Public Made by Adomby adom
Analog Devices Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Contents
README
markdownLT1963AEST-3.3#TRPBF
Analog Devices · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3
LT1963AEST-3.3#TRPBF 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 supply pin that powers the regulator; a 1µF to 10µF bypass capacitor is advised when the device is more than six inches from the main input filter capacitor, and the IN pin voltage absolute maximum is ±20V. |
| 2 | GND | power_in | Ground reference pin, also connected to the exposed tab; the datasheet gives no separate pin-function description for GND. |
| 3 | OUT | power_out | Regulated output that supplies the load and requires a minimum 10µF output capacitor to prevent oscillations, with an OUT pin voltage absolute maximum of ±20V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | SOT-223-3 |
| Category | Power Management (PMIC) |
| 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 (LT1963A-3.3, 25°C) | 3.25 | 3.3 | 3.35 | V | VIN = 3.8V, ILOAD = 1mA | 5 | |
| Regulated Output Voltage (LT1963A-3.3, full operating temperature range) | 3.2 | 3.3 | 3.4 | V | 4.3V < VIN < 20V, 1mA < ILOAD < 1.5A; full operating temperature range | 5 | |
| Minimum Input Voltage (full operating temperature range) | 2.1 | 2.5 | V | ILOAD = 1.5A | 5 | ||
| Line Regulation (LT1963A-3.3) | 3.5 | 10 | mV | ΔVIN = 3.8V to 20V, ILOAD = 1mA | 5 | ||
| Load Regulation (LT1963A-3.3, 25°C) | 3 | 20 | mV | VIN = 4.3V, ΔILOAD = 1mA to 1.5A | 5 | ||
| Load Regulation (LT1963A-3.3, full operating temperature range) | 35 | mV | VIN = 4.3V, ΔILOAD = 1mA to 1.5A; full operating temperature range | 5 | |||
| Dropout Voltage (25°C) | 0.02 | 0.06 | V | VIN = VOUT(NOMINAL), ILOAD = 1mA | 5 | ||
| Dropout Voltage (full operating temperature range) | 0.1 | V | VIN = VOUT(NOMINAL), ILOAD = 1mA; full operating temperature range | 5 | |||
| Dropout Voltage (25°C) | 0.1 | 0.17 | V | VIN = VOUT(NOMINAL), ILOAD = 100mA | 5 | ||
| Dropout Voltage (full operating temperature range) | 0.22 | V | VIN = VOUT(NOMINAL), ILOAD = 100mA; full operating temperature range | 5 | |||
| Dropout Voltage (25°C) | 0.19 | 0.27 | V | VIN = VOUT(NOMINAL), ILOAD = 500mA | 5 | ||
| Dropout Voltage (full operating temperature range) | 0.35 | V | VIN = VOUT(NOMINAL), ILOAD = 500mA; full operating temperature range | 5 | |||
| Dropout Voltage (25°C) | 0.34 | 0.45 | V | VIN = VOUT(NOMINAL), ILOAD = 1.5A | 5 | ||
| Dropout Voltage (full operating temperature range) | 0.55 | V | VIN = VOUT(NOMINAL), ILOAD = 1.5A; full operating temperature range | 5 | |||
| GND Pin Current | 1 | 1.5 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 0mA; full operating temperature range | 5 | ||
| GND Pin Current | 1.1 | 1.6 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 1mA; full operating temperature range | 5 | ||
| GND Pin Current | 3.8 | 5.5 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 100mA; full operating temperature range | 5 | ||
| GND Pin Current | 15 | 25 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 500mA; full operating temperature range | 5 | ||
| GND Pin Current | 80 | 120 | mA | VIN = VOUT(NOMINAL) + 1V, ILOAD = 1.5A; full operating temperature range | 5 | ||
| Shutdown Threshold (VOUT Off to On) | 0.25 | 0.9 | V | VOUT = Off to On; full operating temperature range | 5 | ||
| Shutdown Threshold (VOUT On to Off) | 0.75 | 2 | V | VOUT = On to Off; full operating temperature range | 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 (full operating temperature range) | 1.6 | A | VIN = VOUT(NOMINAL) + 1V, ΔVOUT = -0.1V; full operating temperature range | 6 | |||
| Current Limit (25°C) | 2 | A | VIN = 7V, VOUT = 0V | 6 | |||
| Input Reverse Leakage Current (ST package) | 2 | mA | ST Package, VIN = -20V, VOUT = 0; full operating temperature range | 6 | |||
| Reverse Output Current (LT1963A-3.3) | 600 | 1200 | µA | VOUT = 3.3V, VIN < 3.3V | 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 (LT1963AE) | TJ | -40 | 125 | °C | Note 3 | 2 | |
| Storage Temperature Range | -65 | 150 | °C | 2 | |||
| Lead Temperature (Soldering) | 300 | °C | Soldering, 10 sec | 2 | |||
| Maximum Junction Temperature (ST package) | TJMAX | 150 | °C | SOT-223 (ST) package | 2 | ||
| Thermal Resistance Junction-to-Ambient (ST package, pin configuration) | θJA | 50 | °C/W | SOT-223 (ST) package | 2 | ||
| Thermal Resistance Junction-to-Ambient (SOT-223) | θJA | 42 | °C/W | Topside 2500mm2, backside 2500mm2, board area 2500mm2 | 19 | ||
| Thermal Resistance Junction-to-Ambient (SOT-223) | θJA | 50 | °C/W | Topside 225mm2, backside 2500mm2, board area 2500mm2 | 19 | ||
| Thermal Resistance Junction-to-Ambient (SOT-223) | θJA | 56 | °C/W | Topside 100mm2, backside 2500mm2, board area 2500mm2 | 19 | ||
| Thermal Resistance Junction-to-Ambient (SOT-223) | θJA | 49 | °C/W | Topside 1000mm2, backside 1000mm2, board area 1000mm2 | 19 | ||
| Thermal Resistance Junction-to-Ambient (SOT-223) | θJA | 52 | °C/W | Topside 1000mm2, backside 0mm2, board area 1000mm2 | 19 |
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-3.3#TRPBF - Footprint:
Package_TO_SOT_SMD:SOT-223-3_TabPin2 - 3D model: SOT-223-3 (KiCad packages3D, STEP)
- 3D model files:
lt1963aest-3-3-trpbf-etched.step/lt1963aest-3-3-trpbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lt1963aest-3-3-trpbf.step/lt1963aest-3-3-trpbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (28 pp, sha256
a826955aaff1605b, retrieved 2026-10-18, 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).