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 45µA 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 1µF and 10µF 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°C to +85°C, making it suitable for various portable and handheld applications, including PDAs, smartphones, and medical devices.