Datasheet Summary
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 bining 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 pensation allows for an optimum balance...