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.


  • 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)



  • PDAs, cell phones and smart phones
  • Portable instruments, MP3 players
  • Handheld devices, including medical handhelds


PDF 662 KB Datasheet
PDF 11.35 MB 日本語 , 简体中文 Brochure
PDF 202 KB Product Change Notice
PDF 326 KB Product Change Notice
PDF 200 KB End Of Life Notice
PDF 509 KB Application Note
PDF 397 KB Application Note
7 items

Design & Development

Software & Tools

Software Downloads

Type Date
PDF 200 KB End Of Life Notice
1 item

Boards & Kits

Boards & Kits