Overview
The TLV1117-33IDCY is a positive low-dropout voltage regulator produced by Texas Instruments. This device is designed to provide up to 800 mA of output current and is available in various fixed output voltage options, including 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V, as well as an adjustable output voltage option. The TLV1117 is characterized by its low dropout voltage, high current capability, and robust thermal performance, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 3.3 V (fixed) |
| Output Current | Up to 800 mA |
| Dropout Voltage | Maximum 1.3 V at 800 mA |
| Line Regulation | Maximum 0.2% |
| Load Regulation | Maximum 0.4% |
| Operating Temperature Range | -40°C to 125°C |
| Package Type | SOT-223 (DCY) |
| Number of Pins | 4 |
| Package Quantity | Carrier 80, Tube |
Key Features
- Low dropout voltage: Maximum of 1.3 V at 800 mA, decreasing at lower load currents.
- High output current: Up to 800 mA.
- Tight line and load regulation: Maximum line regulation of 0.2% and load regulation of 0.4%.
- Stable with tantalum and aluminum electrolytic output capacitors having an ESR between 0.2 Ω and 10 Ω.
- Current limiting and overtemperature shutdown for protection against overload or under heat sinking.
- Programmable feedback for adjustable output voltage using the ADJ pin.
- NPN output topology providing lower output impedance compared to PNP-type regulators.
Applications
The TLV1117-33IDCY is versatile and can be used in various applications, including:
- Post regulator for DC/DC converters.
- Battery chargers.
- Microprocessor supplies.
- General-purpose voltage regulation in electronic systems.
Q & A
- What is the maximum output current of the TLV1117-33IDCY?
The maximum output current is up to 800 mA. - What are the available output voltage options for the TLV1117 series?
The TLV1117 series is available in fixed output voltage options of 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V, as well as an adjustable output voltage option. - What is the dropout voltage of the TLV1117-33IDCY at full load?
The dropout voltage is specified at a maximum of 1.3 V at 800 mA. - What is the operating temperature range of the TLV1117-33IDCY?
The operating temperature range is -40°C to 125°C. - What type of package does the TLV1117-33IDCY come in?
The TLV1117-33IDCY comes in a SOT-223 (DCY) package. - Is an output capacitor required for the TLV1117-33IDCY?
Yes, an output capacitor is required to improve transient response and stability. - What types of capacitors are recommended for use with the TLV1117-33IDCY?
The device is stable with tantalum and aluminum electrolytic output capacitors having an ESR between 0.2 Ω and 10 Ω. - Does the TLV1117-33IDCY have built-in protection features?
Yes, it includes current limiting and overtemperature shutdown to protect against overload or under heat sinking. - How can the output voltage be adjusted in the adjustable version of the TLV1117?
The output voltage can be adjusted using the ADJ pin with appropriate resistors. - What are some common applications of the TLV1117-33IDCY?
Common applications include post regulators for DC/DC converters, battery chargers, microprocessor supplies, and general-purpose voltage regulation.
