Overview
The STMicroelectronics LF90CPT-TR is a Low Dropout (LDO) linear voltage regulator designed to provide a stable output voltage with minimal input-output differential voltage. This regulator is part of the LFXX series and is known for its fast transient response, wide input voltage range, low quiescent current, and low noise with high Power Supply Rejection Ratio (PSRR). The LF90CPT-TR is particularly suited for applications requiring a reliable and efficient voltage regulation solution.
Key Specifications
| Parameter | Value |
|---|---|
| Brand | STMicroelectronics |
| Regulator Type | Low Dropout Voltage |
| Maximum Output Current | 500mA |
| Number of Outputs | 1 |
| Output Voltage | 9 V |
| Line Regulation | 45 mV |
| Load Regulation | 45 mV |
| Accuracy | ±2% |
| Polarity | Positive |
| Mounting Type | Surface Mount |
| Quiescent Current | 0.7mA |
| Package Type | PPAK |
| Pin Count | 5 |
| Output Type | Fixed |
| Dimensions | 6.6 x 6.2 x 2.4mm |
| Height | 2.4mm |
| Maximum Operating Temperature | +125 °C |
| Maximum Input Voltage | 16 V |
| Minimum Operating Temperature | -40 °C |
Key Features
- Low dropout voltage, allowing operation with a small input-output differential voltage.
- Fast transient response and wide input voltage range.
- Low quiescent current of 0.7mA, reducing power consumption in standby modes.
- Low noise and high PSRR, ensuring stable output voltage.
- Surface mount package (PPAK) with 5 pins, facilitating easy integration into compact designs.
- Operating temperature range from -40 °C to +125 °C, making it suitable for a variety of environmental conditions.
Applications
The STMicroelectronics LF90CPT-TR is versatile and can be used in various applications requiring stable voltage regulation. These include:
- Portable electronics and battery-powered devices where low power consumption is crucial.
- Automotive systems that require reliable voltage regulation over a wide temperature range.
- Industrial control systems and automation where stable voltage is essential.
- Consumer electronics such as audio equipment, medical devices, and other precision electronics.
Q & A
- What is the maximum output current of the LF90CPT-TR?
The maximum output current is 500mA.
- What is the output voltage of the LF90CPT-TR?
The output voltage is fixed at 9 V.
- What is the package type of the LF90CPT-TR?
The package type is PPAK with 5 pins.
- What is the quiescent current of the LF90CPT-TR?
The quiescent current is 0.7mA.
- What is the operating temperature range of the LF90CPT-TR?
The operating temperature range is from -40 °C to +125 °C.
- What is the maximum input voltage for the LF90CPT-TR?
The maximum input voltage is 16 V.
- Does the LF90CPT-TR have high PSRR?
Yes, the LF90CPT-TR has high Power Supply Rejection Ratio (PSRR), ensuring low noise and stable output voltage.
- What are the dimensions of the LF90CPT-TR?
The dimensions are 6.6 x 6.2 x 2.4mm.
- Is the LF90CPT-TR RoHS compliant?
Yes, the LF90CPT-TR is RoHS compliant with exemptions.
- What is the line regulation of the LF90CPT-TR?
The line regulation is 45 mV.
