ISL9001A is a high performance Low Dropout linear

regulator capable of sourcing 300mA current. It has a low

standby current and high-PSRR and is stable with output

capacitance of 1µF to 10µF with ESR of up to 200mΩ.

The ISL9001A has a very high PSRR of 90dB and output

noise less than 30µVRMS. A reference bypass pin allows

connection of a noise-filtering capacitor for low-noise and

high-PSRR applications. When coupled with a no load

quiescent current of 25µA (typical), and 0.1µA shutdown

current, the ISL9001A is an ideal choice for portable wireless

equipment.

The ISL9001A provides a PGOOD signal with delay time

programmable through an external capacitor.

Several different fixed voltage outputs are standard. Output

voltage options for each LDO range from 1.5V to 3.3V. Other

output voltage options may be available upon request.

Features

• 300mA high performance LDO

• Excellent transient response to large current steps

• Excellent load regulation: <0.1 voltage change across

full range of load current

• High PSRR: 90dB @ 1kHz

• Wide input voltage capability: 2.3V to 6.5V

• Extremely low quiescent current: 25µA

• Low dropout voltage: typically 200mV @ 300mA

• Low output noise: typically 30µVRMS @ 100µA (1.5V)

• Stable with 1µF to 10µF ceramic capacitors

• Soft-start to limit input current surge during enable

• Current limit and overheat protection

• Delayed POR, programmable with external capacitor

• ±1.8 accuracy over all operating conditions

• Tiny 2mmx3mm 8 Ld DFN package

• -40°C to +85°C operating temperature range

• Pb-free (RoHS compliant)

Applications

• PDAs, cell phones and smart phones

• Portable instruments, MP3 players

• Handheld devices, including medical handhelds