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ISL9003A_14 Datasheet, PDF (1/12 Pages) Intersil Corporation – Low Noise LDO with Low IQ and High PSRR | |||
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Data Sheet
July 18, 2014
ISL9003A
FN6299.5
Low Noise LDO with Low IQ and High
PSRR
ISL9003A 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 200mï.
The ISL9003A has a very high PSRR of 90dB and output
noise is 20µVRMS (typical). When coupled with a no load
quiescent current of 31µA (typical), and 0.5µA shutdown
current, the ISL9003A is an ideal choice for portable wireless
equipment.
The ISL9003A comes in many fixed voltage options with
±1.8% output voltage accuracy over temperature, line and
load. Other output voltage options are available on request.
Pinouts
ISL9003A
(5 LD SC-70)
TOP VIEW
VIN
1
5
VO
GND
2
EN
3
4
CBYP
ISL9003A
(6 LD 1.6x1.6 ÎTDFN)
TOP VIEW
VO 1
GND 2
CBYP 3
6 VIN
5 NC
4 EN
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
⢠Very High PSRR: >90dB at 1kHz
⢠Wide Input Voltage Capability: 2.3V to 6.5V
⢠Extremely Low Quiescent Current: 31µA
⢠Low Dropout Voltage: Typically 200mV at 150mA
⢠Low Output Noise: Typically 20µVRMS at 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)
Applications
⢠PDAs, Cell Phones and Smart Phones
⢠Portable Instruments, MP3 Players
⢠Handheld Devices Including Medical Handhelds
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
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