Renesas Electronics Corporation Voltage Regulators - Linear ISL9011IRKFZ

The ISL9011IRKFZ is a dual low-dropout (LDO) voltage regulator from Quarktwin Technology Ltd., designed to provide stable output voltages with low noise and low quiescent current. It can deliver 150mA from Channel 1 and 300mA from Channel 2, with output voltage options ranging from 1.5V to 3.3V. The device operates with a wide input voltage range of 2.3V to 6.5V and features a high power supply rejection ratio (PSRR) of 70dB at 1kHz, making it suitable for noise-sensitive applications. The ISL9011IRKFZ has a low dropout voltage of approximately 120mV at 150mA and typically consumes only 45¬µA of quiescent current when both outputs are active. It includes separate enable pins for each LDO, allowing for independent control, and features soft-start circuitry to limit inrush current during startup. The device is stable with output capacitance values between 1¬µF and 10¬µF and is equipped with current limit and overheat protection mechanisms. This regulator is packaged in a compact 10-lead 3mm x 3mm DFN package and operates over a temperature range of -40¬8C to +85¬8C, making it suitable for various portable and handheld applications, including PDAs, smartphones, and medical devices.