ISL9008IECZ-T Datasheet, PDF (1/10 Pages) Intersil Corporation – Low Noise LDO with Low IQ and High PSRR

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Low Noise LDO with Low I_Q and High
PSRR
ISL9008 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 ISL9008 has a high PSRR of 65dB and output noise
less than 45µV_RMS. When coupled with a no load quiescent
current of 45µA (typical), and 0.5µA shutdown current, the
ISL9008 is an ideal choice for portable wireless equipment.
The ISL9008 comes in several fixed voltage options with
±1.8% output voltage accuracy over temperature, line and
load. Other output voltage options are available on request.
Pinout
ISL9008
(5 LD SC-70)
TOP VIEW
VIN
15
VO
GND
2
EN 3 4 NC
March 11, 2008
ISL9008
FN9235.1
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: 45µA
• 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
• -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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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