Description

The MIC5319-1.8YML is a high-performance linear voltage regulator designed for electronic components. It is capable of providing a stable output voltage with minimal noise while consuming low ground current. This regulator offers an ultra-low dropout voltage of 200mV at 500mA and operates within an input voltage range of 2.5 to 5.5V. The MIC5319-1.8YML is designed to be compatible with ceramic output capacitors, ensuring stability and efficient operation. With a low output noise of 40µVrms and a quiescent current of 90µA, this regulator delivers high performance. It also features a high PSRR of up to 70dB at 1kHz, allowing for excellent noise rejection. The MIC5319-1.8YML has a fast turn-on time of 40µs and offers high output accuracy with ±1.0% initial accuracy and ±2.0% accuracy over temperature. It is equipped with thermal shutdown protection and current-limit protection for enhanced safety. The regulator can be enabled or disabled through a logic-controlled enable pin. It is available in a compact 2mm x 2mm MLF® package for continuous operation at 500mA and a thin SOT-23-5 package for peak operation at 500mA. With its versatile characteristics, the MIC5319-1.8YML is suitable for various applications, including cellular phones, PDAs, fiber optic modules, portable electronics, notebook PCs, and audio codec power supplies.

Specifications and features

• Ultra-low dropout voltage: 200mV @ 500mA
• Input voltage range: 2.5 to 5.5V
• Stable with ceramic output capacitor
• Low output noise: 40µVrms
• Low quiescent current: 90µA total
• High PSRR: up to 70dB @ 1kHz
• Fast turn-on-time: 40µs typical
• High output accuracy:
• - ±1.0% initial accuracy
• - ±2.0% over temperature
• Thermal shutdown protection
• Current-limit protection
• Logic-controlled Enable
• Tiny 2mm x 2mm MLF® package, 500mA continuous
• Thin SOT-23-5 package, 500mA peak

Application Scenarios

The MIC5319-1.8YML is well-suited for the following applications:

• Cellular phones
• PDAs
• Fiber optic modules
• Portable electronics
• Notebook PCs
• Audio Codec power supplies

Comparison

- High-performance regulator with low noise and low ground current consumption

- Ultra-low dropout voltage of 200mV at 500mA

- Wide input voltage range of 2.5 to 5.5V

- Stable operation with ceramic output capacitors

- High PSRR of up to 70dB at 1kHz for excellent noise rejection

- Fast turn-on time of 40µs for quick response

- High output accuracy with ±1.0% initial accuracy and ±2.0% accuracy over temperature

- Equipped with thermal shutdown and current-limit protection for enhanced safety

- Logic-controlled enable for easy operation

- Available in compact and thin packages for different application requirements

- None identified