Overview
The STMicroelectronics LD1117V25C is a Linear Voltage Regulator IC, part of the Power Management (PMIC) product family. This device is a positive fixed output linear voltage regulator capable of providing up to 800 mA of output current. It is designed for general-purpose use in power supply circuits where a stable voltage is required. The LD1117V25C is notable for its low dropout voltage and high power supply rejection ratio (PSRR), making it suitable for a variety of applications. However, it is important to note that this product is currently obsolete and available only in a tube package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Output (Fixed) | 2.5 | V |
| Current - Output | Up to 800 | mA |
| Voltage - Dropout (Typical) | 1.1 @ 800mA | V |
| Quiescent Current (Iq) | 10 | mA |
| PSRR | 75 dB @ 120Hz | - |
| Operating Input Voltage | Up to 15 | V |
| Operating Temperature | -40°C to 125°C | - |
| Package / Case | TO-220-3 | - |
| Mounting Type | Through Hole | - |
Key Features
- Positive fixed output voltage regulator with an output voltage of 2.5V.
- Output current up to 800 mA.
- Low dropout voltage: 1.1V @ 800mA.
- High power supply rejection ratio (PSRR): 75 dB @ 120Hz.
- Quiescent current: 10 mA.
- Internal current and thermal limit.
- Available in ± 1 % (at 25 °C) and 2 % in full temperature range.
- Operating temperature range: -40°C to 125°C.
Applications
- Power supply circuits where a stable voltage is required.
- General-purpose use in various electronic systems.
- Communications equipment, computers, and peripherals.
- Industrial and personal electronics.
Q & A
- What is the output voltage of the LD1117V25C? The output voltage of the LD1117V25C is fixed at 2.5V.
- What is the maximum output current of the LD1117V25C? The LD1117V25C can provide up to 800 mA of output current.
- What is the typical dropout voltage of the LD1117V25C? The typical dropout voltage is 1.1V at 800mA.
- What is the quiescent current of the LD1117V25C? The quiescent current is 10 mA.
- What is the power supply rejection ratio (PSRR) of the LD1117V25C? The PSRR is 75 dB at 120Hz.
- What are the operating temperature ranges for the LD1117V25C? The operating temperature range is -40°C to 125°C.
- In what package is the LD1117V25C available? The LD1117V25C is available in the TO-220-3 package.
- Is the LD1117V25C lead-free and RoHS compliant? Yes, the LD1117V25C is lead-free and RoHS compliant.
- What are the typical applications of the LD1117V25C? Typical applications include power supply circuits, general-purpose use, communications equipment, computers, and peripherals, as well as industrial and personal electronics.
- Is the LD1117V25C still in production? No, the LD1117V25C is currently obsolete and available only in a tube package.
