The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2016
Filed:
Aug. 14, 2014
Sandisk Technologies Inc., Plano, TX (US);
SanDISK Technologies Inc., Pano, TX (US);
Abstract
A high voltage step regulator, such as would be used to provide a regulated low voltage (on the order of a few volts) from a high voltage external supply (e.g. 12V), is presented. To protect the output transistor, through which the output is provided from the input, from breakdown, a depletion type device is connected between the supply and the output transistor. The control gate of the depletion device is then connected to the output level of the regulator. This reduces the voltage drop across the output transistor, helping to avoid violating design rules (EDR) on how great a voltage differential can be placed across the output transistor. Examples of applications for such a circuit are for various operating voltages on a non-volatile memory chip operating with a high voltage power supply.