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 200m.

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.

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