Dual LDO with Low Noise, Low IQ, and High PSRR

ISL9011A is a high performance dual LDO capable of sourcing 150mA current from Channel 1 and 300mA from Channel 2. The device has a low standby current and highPSRR and is stable with output capacitance of 1μF to 10μF with ESR of up to 200mΩ.
A reference bypass pin allows an external capacitor for adjusting a noise filter for low noise and high PSRR applications.

Features
• Integrates two high performance LDOs
    - VO1 - 150mA output
    - VO2 - 300mA output
• Excellent transient response to large current steps
• Excellent load regulation: <1% voltage change across full range of load current
• High PSRR: 70dB @ 1kHz
• Wide input voltage capability: 2.3V to 6.5V
• Extremely low quiescent current: 45µA (both LDOs active)
• Low dropout voltage: typically 120mV @ 150mA
• Low output noise: typically 30µVRMS @ 100µA (1.5V)
• Stable with 1µF to 10µF ceramic capacitors
• Separate enable pins for each LDO
• Soft-start to limit input current surge during enable
• Current limit and overheat protection
• ±1.8% accuracy over all operating conditions
• Tiny 10 Ld 3mmx3mm DFN package
• -40°C to +85°C operating temperature range
• Pin compatible with Micrel MIC2211
• Pb-free plus anneal available (RoHS compliant)

Applications
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Handheld Devices including Medical Handhelds