Overview
The LD1117DT25TR is a low dropout voltage regulator produced by STMicroelectronics. This component is part of the LD1117 series, which is known for its high performance and versatility. The LD1117DT25TR specifically provides a fixed output voltage of 2.5V and is capable of delivering up to 800 mA of output current. It is available in the DPAK surface mount package, which optimizes thermal characteristics and offers a space-saving design.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 2.5 | V |
| Output Current | Up to 800 | mA |
| Dropout Voltage | 1.1 (typ.) | V |
| Line Regulation | 1 to 6 mV | |
| Load Regulation | 1 to 10 mV | |
| Temperature Stability | 0.5 % | |
| Quiescent Current | 5 to 10 | mA |
| Supply Voltage Rejection | 60 to 75 dB | |
| Operating Input Voltage | Up to 15 | V |
| Package Type | DPAK | |
| Thermal Resistance Junction-Case | 8 °C/W | |
| Thermal Resistance Junction-Ambient | 100 °C/W |
Key Features
- Low dropout voltage (1 V typ.)
- High output current capability up to 800 mA
- Fixed output voltage of 2.5 V, with adjustable versions available
- Internal current and thermal limit for protection
- Tight output voltage tolerance within ± 1 % at 25 °C
- High supply voltage rejection (60 to 75 dB)
- Low quiescent current (5 to 10 mA)
- Available in DPAK surface mount package for optimal thermal performance and space-saving design
- Minimum 10 µF capacitor required for stability
Applications
The LD1117DT25TR is suitable for a variety of applications requiring stable and efficient voltage regulation. These include:
- Power supplies for electronic devices
- Embedded systems and microcontrollers
- Automotive electronics
- Industrial control systems
- Consumer electronics such as audio and video equipment
Q & A
- What is the output voltage of the LD1117DT25TR?
The output voltage of the LD1117DT25TR is 2.5 V.
- What is the maximum output current of the LD1117DT25TR?
The maximum output current of the LD1117DT25TR is up to 800 mA.
- What is the typical dropout voltage of the LD1117DT25TR?
The typical dropout voltage of the LD1117DT25TR is 1.1 V.
- What package type is the LD1117DT25TR available in?
The LD1117DT25TR is available in the DPAK surface mount package.
- What is the thermal resistance junction-case for the DPAK package?
The thermal resistance junction-case for the DPAK package is 8 °C/W.
- What is the supply voltage rejection of the LD1117DT25TR?
The supply voltage rejection of the LD1117DT25TR is 60 to 75 dB.
- What is the quiescent current of the LD1117DT25TR?
The quiescent current of the LD1117DT25TR is 5 to 10 mA.
- What is the operating input voltage range for the LD1117DT25TR?
The operating input voltage range for the LD1117DT25TR is up to 15 V.
- What is the minimum capacitor required for stability?
The minimum capacitor required for stability is 10 µF.
- What are some common applications of the LD1117DT25TR?
The LD1117DT25TR is commonly used in power supplies, embedded systems, automotive electronics, industrial control systems, and consumer electronics.
