LD1117v33 (LD33) - 3.3v 1.3A Positive Regulator -3pin (TO-220) [Original]

LD1117v33 (LD33) 3.3V 1.3A Positive Linear Voltage Regulator (LDO) - TO-220

The LD1117v33, also known as LD33, is a high-quality 3.3V fixed output linear voltage regulator (LDO). It is capable of delivering up to 1.3A of output current, making it suitable for a wide range of electronic applications. Housed in a robust TO-220 package, this 3-pin regulator is designed for easy integration into your circuits. Engineered for stability, it requires only a common 10 µF minimum capacitor for reliable operation. On-chip trimming ensures a tight output voltage tolerance, typically within ±1% at 25°C, providing precise power delivery. Built-in features include internal thermal overload protection and short-circuit current limiting, safeguarding your components. Its NPN pass transistor design contributes to high efficiency, with quiescent current flowing primarily into the load. This original LD1117v33 is an excellent choice for projects requiring a stable, efficient, and protected 3.3V power source.

Specifications:

• Output Voltage: 3.3V Fixed
• Output Current: Up to 1.3A
• Regulator Type: Positive Linear (LDO)
• Package: TO-220 (3-pin)
• Output Voltage Tolerance: ±1% (at 25°C)
• Minimum Capacitor for Stability: 10 µF
• Protection Features: Thermal Overload, Short-Circuit
• RoHS Compliance: Yes
• Category: Integrated Circuit (IC), Voltage Regulator

Key features and benefits:

• Fixed 3.3V output voltage
• Up to 1.3A output current capability
• Low dropout voltage operation
• Internal thermal overload protection
• Internal short-circuit current limit
• High output voltage accuracy (±1% at 25°C)
• Requires only 10 µF minimum capacitor for stability

Applications:

• Microcontroller power supplies (e.g., ESP32, STM32)
• Sensor power regulation
• Digital circuit power management
• Battery-powered devices (for stable 3.3V from higher voltage)
• General purpose 3.3V power rails

Package Includes:

*Image shown is a representation only.

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