ISL9005A is a low current, high PSRR 300mA LDO from ISL. ISL9005A has a low standby current and high PSRR, and it is stable with 1µF to 10µF ceramic capacitors and ESR up to 200mΩ. ISL9005A has a high PSRR of 75dB and an output noise of less than 45µVRMS. ISL9005A has a typical no load quiescent current of 50µA and 0.1µA shutdown current, making it an ideal choice for portable wireless equipment. ISL9005A has several different fixed voltage outputs as standard. Output voltage options for each LDO range are from 1.5V to 3.3V. Other output voltage options may be available upon request.
The ISL9005A is a high‑performance LDO regulator capable of delivering up to 300 mA with a typical dropout of 200 mV at full load. It offers a low standby current of 50 µA, a shutdown current of 0.1 µA, and a high power‑supply‑rejection ratio of 75 dB at 1 kHz, making it suitable for portable wireless equipment.
The device is supplied in an 8‑lead 2 mm × 3 mm DFN package, includes soft‑start, current‑limit and thermal‑shutdown protection, and is specified for operation from –40 °C to +85 °C. Typical applications include PDAs, cell phones, MP3 players and other handheld devices.
| Maximum Output Current | 300 mA |
|---|---|
| Dropout Voltage (typical) | 200 mV @ 300 mA |
| Quiescent Current | 50 µA |
| Shutdown Current | 0.1 µA |
| PSRR | 75 dB @ 1 kHz |
| Output Noise | < 45 µV rms |
| Operating Temperature Range | –40 °C to +85 °C |
| Package | 8‑lead 2 mm × 3 mm DFN |
The device can continuously source up to 300 mA.
The quiescent current is typically 50 µA.
It includes current‑limit, short‑circuit, thermal‑shutdown and soft‑start protection.