The ISL9105IRZ-T is a high-efficiency, synchronous boost regulator from Intersil, now Renesas Electronics. It is designed to provide a stable output voltage from a variety of input sources, making it suitable for portable devices and battery-powered applications.

Applications

• Portable media players
• Smartphones
• Tablet computers
• Wearable devices
• Low-power handheld devices

Features

• High efficiency: Up to 96%
• Input voltage range: 0.7V to 5.5V
• Adjustable output voltage
• Low quiescent current
• Integrated synchronous rectifier
• Over-temperature protection
• Short-circuit protection

Benefits

• Prolonged battery life due to high efficiency and low quiescent current.
• Flexibility in power supply design with wide input voltage range and adjustable output.
• Reduced component count and board space due to integration of synchronous rectifier.
• Enhanced system reliability due to over-temperature and short-circuit protection.
• Stable output voltage even with varying input voltage or load conditions.

Specifications

The ISL9105IRZ-T operates with an input voltage range of 0.7V to 5.5V and provides an adjustable output voltage. It has a switching frequency of 1.2MHz. The quiescent current is typically 20μA. The device is available in a 10-lead TDFN package (3mm x 3mm). It includes built-in over-temperature and short-circuit protection. The ISL9105IRZ-T features automatic PFM/PWM mode switching for optimal efficiency across different load conditions. It's designed for space-constrained applications requiring high efficiency and reliable performance.

This boost regulator is designed to provide a stable output voltage from a wide range of input voltages. The integrated synchronous rectifier reduces power losses and improves efficiency. The adjustable output voltage allows for customization to specific application requirements. The small TDFN package makes it suitable for portable devices with limited board space. The device's high efficiency ensures long battery life in battery-powered applications.