ISL9001
LDO with Low ISUPPLY, High PSRR
Not Recommended for New Designs.
Recommended Replacement Part ISL9001A.
Typical Diagram
Key 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)
Description
ISL9001 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 an output capacitance of 1µF to 10µF with an ESR of up to 200mΩ.
The ISL9001 has a very high PSRR of 90dB and outputs 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 ISL9001 is an ideal choice for portable wireless equipment.
The ISL9001 provides a power-good signal with delay time programmable with an external capacitor. Several different fixed voltage outputs are standard. Output voltage options for each LDO range are from 1.5V to 3.3V. Other output voltage options may be available upon request.
Applications
- PDAs, cell phones and smart phones
- Portable instruments, MP3 players
- Handheld devices, including medical handhelds
