ISL9008A
Low Noise LDO with Low IQ, High PSRR
Key Features
- High performance LDO with 150mA continuous output
- Excellent transient response to large current steps
- Excellent load regulation: <0.1% voltage change across full range of load current
- High PSRR: 65dB @ 1kHz
- Wide input voltage capability: 2.3V to 6.5V
- Very low quiescent current: 46µA
- Low dropout voltage: typically 200mV @ 150mA
- Low output noise: typically 45µVRMS @ 100µA (1.5V)
- Stable with 1µF to 4.7µF ceramic capacitors
- Shutdown pin turns off LDO with 1µA (max) standby current
- Soft-start limits input current surge during enable
- Current limit and overheat protection
- ±1.8% accuracy over all operating conditions
- 5 Ld SC-70 package or 6 Ld µTDFN package
- -40°C to +85°C operating temperature range
- Pb-free (RoHS compliant)
Description
ISL9008A is a high performance single low noise, high PSRR LDO that delivers a continuous 150mA of load current. It has a low standby current and is stable with 1µF of MLCC output capacitance with an ESR of up to 200mΩ.
The ISL9008A has a high PSRR of 65dB and output noise less than 45µVRMS. When coupled with a no load quiescent current of 46µA (typical), and 0.5µA shutdown current, the ISL9008A is an ideal choice for portable wireless equipment.
The ISL9008A comes in several fixed voltage options with ±1.8% output voltage accuracy over-temperature, line and load. 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
