LDO with Low ISUPPLY, High PSRR

ISL9005A 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.

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: 75dB @ 1kHz
• Wide input voltage capability: 2.3V to 6.5V
• Very low quiescent current: 50µA
• Low dropout voltage: typically 200mV @ 300mA
• Low output noise: typically 45µVRMS @ 100µA (1.5V)
• Stable with 1µF to 10µF ceramic capacitors
• Soft-start to limit input current surge during enable
• Current limit and overheat protection
• ±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