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ISL70005SEH - Radiation Hardened Dual Output 3A Synchronous Buck and LDO Regulator

General Description

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Key Features

  • Electrically screened to DLA SMD 5962-19209.
  • Dual Output Regulator: 3A Synchronous Buck and ±1A LDO.
  • DDR, DDR2, DDR3, and DDR4 VDDQ/VTT Regulator.
  • Independent EN, SS, and PG indicators.
  • ±1% reference voltage.
  • External clock synchronization: 100kHz to 1MHz.
  • Full military temperature range operation ○ TA = -55°C to +125°C ○ TJ = -55°C to +150°C.
  • TID Rad Hard Assurance (RHA) testing ISL70005SEH ○ HDR (50-300rad(Si)/s): 100krad.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Datasheet ISL70005SEH, ISL73005SEH Radiation Hardened Dual Output 3A Synchronous Buck and ±1A LDO Regulator for DDR VDDQ and VTT The ISL70005SEH and ISL73005SEH are radiation hardened dual output Point-of-Load (POL) regulators combining the high efficiency of a synchronous buck regulator with the low noise of a Low Dropout (LDO) regulator. They are suited for systems with 3.3V or 5V power buses and can support continuous output load currents of 3A for the buck regulator and ±1A for the LDO. The buck regulator uses a voltage mode control architecture and switches at a resistor adjustable frequency of 100kHz to 1MHz. Externally adjustable loop compensation allows for an optimum balance between stability and output dynamic performance.