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ISL9003A - Low Noise LDO

Key Features

  • High Performance LDO with 150mA Continuous Output.
  • Excellent Transient Response to Large Current Steps.
  • Excellent Load Regulation: 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.

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Full PDF Text Transcription (Reference)

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ISL9003A 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 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. Pinouts ISL9003A (5 LD SC-70) TOP VIEW VIN 1 5 VO GND EN 2 3 4 CBYP ISL9003A (6 LD 1.6x1.