Overview
The MIC5205-5.0YM5-TR is a high-performance, low-dropout (LDO) linear voltage regulator produced by Microchip Technology. This regulator is designed to provide ultra-low noise output, high output voltage accuracy, and robust protection features. It is available in a compact SOT-23-5 package, making it suitable for a variety of applications where space is limited. The MIC5205 series offers both fixed and adjustable output voltage versions, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 5.0V (fixed) |
| Output Current | 150mA (guaranteed) |
| Dropout Voltage | Typically low, defined as the input to output differential at which the output voltage drops 2% below its nominal value |
| Quiescent Current | Low, typically in the range of a few milliamps |
| Temperature Range | –40°C to +125°C |
| Package | SOT-23-5 |
| Thermal Shutdown | Yes, with overtemperature protection |
| Reverse-Battery Protection | Yes |
| Enable/Shutdown | CMOS compatible input, logic high = enable, logic low or open = shutdown |
Key Features
- Ultra-low-noise output: Ensures minimal noise in the output voltage, making it suitable for sensitive applications.
- High output voltage accuracy: Provides precise voltage regulation.
- Low dropout voltage: Allows the regulator to maintain its output voltage even with a small difference between the input and output voltages.
- Current and thermal limiting: Protects the regulator from overcurrent and overheating conditions.
- Reverse-battery protection: Safeguards the regulator against reverse polarity connections.
- Logic-controlled electronic enable: Allows for easy control of the regulator's operation using a CMOS-compatible input.
- Low quiescent current: Minimizes power consumption when the regulator is in standby or shutdown mode.
Applications
- Cellular telephones: Ideal for power management in mobile devices.
- Laptop, notebook, and palmtop computers: Suitable for battery-powered computing devices.
- Battery-powered equipment: General use in any battery-powered device requiring stable voltage regulation.
- PCMCIA VCC and VPP regulation/switching: Used in PCMCIA card applications for voltage regulation.
- Consumer/personal electronics: Applicable in various consumer electronics requiring low-noise power supply.
- SMPs post-regulator/dc-to-dc modules: Used as a post-regulator in switch-mode power supplies to improve output voltage quality.
Q & A
- What is the output voltage of the MIC5205-5.0YM5-TR?
The output voltage of the MIC5205-5.0YM5-TR is 5.0V (fixed). - What is the maximum guaranteed output current of the MIC5205-5.0YM5-TR?
The maximum guaranteed output current is 150mA. - What is the typical dropout voltage of the MIC5205-5.0YM5-TR?
The dropout voltage is typically low and defined as the input to output differential at which the output voltage drops 2% below its nominal value. - Does the MIC5205-5.0YM5-TR have thermal shutdown protection?
Yes, it has overtemperature shutdown protection. - How is the enable/shutdown function controlled on the MIC5205-5.0YM5-TR?
The enable/shutdown function is controlled by a CMOS-compatible input; logic high enables the regulator, while logic low or open shuts it down. - What type of package does the MIC5205-5.0YM5-TR come in?
The MIC5205-5.0YM5-TR comes in a SOT-23-5 package. - What is the operating temperature range of the MIC5205-5.0YM5-TR?
The operating temperature range is –40°C to +125°C. - Does the MIC5205-5.0YM5-TR have reverse-battery protection?
Yes, it has reverse-battery protection. - What are some common applications of the MIC5205-5.0YM5-TR?
Common applications include cellular telephones, laptop and notebook computers, battery-powered equipment, PCMCIA VCC and VPP regulation, consumer electronics, and SMPS post-regulator/dc-to-dc modules. - How can the noise output of the MIC5205-5.0YM5-TR be further reduced?
The noise output can be further reduced by connecting an external 470pF capacitor to the bypass pin and ground.
