Texas Instruments TLV1117-33CDCY Fixed LDO Voltage Regulator, 3.3V 800mA

The Texas Instruments TLV1117-33CDCY is a robust, low-dropout (LDO) voltage regulator engineered for reliable power management in a wide array of electronic circuits. Capable of delivering a steady 3.3V output at up to 800 mA of current, this device is distinguished by its exceptionally low dropout voltage, ensuring efficient operation even when the input supply is very close to the desired output level. It maintains stable performance with readily available tantalum and aluminium electrolytic output capacitors, requiring an equivalent series resistance (ESR) between 0.2 Ω and 10 Ω.

This regulator offers exceptional precision for sensitive applications, featuring a maximum line regulation of 0.2% and a maximum load regulation of 0.4%. Its fixed output design simplifies circuit implementation, removing the need for external feedback resistors. The component is presented in a compact SOT-223-3 surface-mount package, making it an ideal choice for space-constrained PCB designs, from consumer electronics to industrial control systems.

Key Features & Specifications

• Output Type: Fixed 3.3V
• Maximum Output Current: 800 mA
• Typical Dropout Voltage: 1.2V (specified at multiple current levels)
• Input Voltage Range: 4.7V to 15V
• Output Regulation: 0.2% line regulation (max), 0.4% load regulation (max)
• Output Capacitor Compatibility: Stable with tantalum or aluminium electrolytic capacitors (ESR 0.2 Ω to 10 Ω)
• Mounting Style: Surface Mount (SMD)
• Package: SOT-223-3
• Operating Temperature Range: 0°C to 125°C

With its combination of high current capability, low dropout, and excellent regulation, the TLV1117-33CDCY provides a dependable and efficient solution for powering microcontrollers, sensors, memory modules, and other digital logic requiring a clean 3.3V rail.