Power & Power Management

Overview

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 200mΩ. 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.

ISL9003A Functional Diagram
ISL9003A Functional Diagram
  • 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)
Critical Power Monitoring System
HMI Solutions for Appliances
HMI Solution for Appliances
Wireless IIoT Gateway

Applications

  • PDAs, Cell Phones and Smart Phones
  • Portable Instruments, MP3 Players
  • Handheld Devices Including Medical Handhelds

Documentation

Title
Type 		Date
ISL9003A Datasheet
PDF 629 KB 		Datasheet
AN1681: Grounding Techniques
PDF 509 KB 		Application Note
AN1684: Nonideality of Ground
PDF 397 KB 		Application Note
PA22026 - MSL1 Packing Change for listed Renesas Products
PDF 414 KB 		Product Advisory
PCN12091 - QSOP and SC-70 from Unisem to CAM as alternate assembly site
PDF 529 KB 		Product Change Notice
PCN10114 - Part Marking Configuration Change for Intersil TDFN, uTDFN, and uTQFN Packaged Products
PDF 205 KB 		Product Change Notice
6 items

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    Buy / Sample
    Part Number
    ISL9003AIEBZ-T
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    		 SC70 Reel 3000 Get Samples,
    ISL9003AIECZ-T
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    		 SC70 Reel 3000 Get Samples,
    ISL9003AIEFZ-T
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    		 SC70 Reel 3000 Get Samples,
    ISL9003AIEHZ-T
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    		 SC70 Reel 3000 Get Samples,
    ISL9003AIEJZ-T
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    		 SC70 Reel 3000 Get Samples,
    ISL9003AIEKZ-T
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    Samples Available
    		 SC70 Reel 3000 Get Samples,
    ISL9003AIEMZ-T
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    Samples Available
    		 SC70 Reel 3000 Get Samples,
    ISL9003AIENZ-T
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    		 SC70 Reel 3000 Get Samples,
    ISL9003AIERZ-T
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    Samples Available
    		 SC70 Reel 3000 Get Samples,
    ISL9003AIRUBZ-T
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    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRUCZ-T
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    memory
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    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRUFZ-T
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    memory
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    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRUHZ-T
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    memory
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    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRUJZ-T
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    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRUKZ-T
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    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRUMZ-T
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    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRUNZ-T
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    memory
    spa
    view_in_ar
    Samples Available
    		 uTDFN Reel 3000 Get Samples,
    ISL9003AIRURZ-T
    play_circleActive
    memory
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    view_in_ar
    Samples Available
    		 uTDFN Reel 3000 Get Samples,
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