CPC G05F 1/575 (2013.01) [G05F 1/468 (2013.01); G05F 3/262 (2013.01)] | 20 Claims |
1. A supply-glitch-tolerant voltage regulator comprising:
a regulated voltage node;
an output transistor having a source terminal, a gate terminal, and a drain terminal, the source terminal being coupled to the regulated voltage node;
a first current generator coupled between a first node and a first power supply node;
a second current generator coupled between the first node and a second power supply node;
a feedback circuit coupled to the first current generator and the second current generator and configured to adjust a voltage on the first node based on a reference voltage and a voltage level on the regulated voltage node;
a diode coupled between the drain terminal and the first power supply node;
a resistor coupled between the gate terminal and the first node; and
a compensation capacitor coupled to the gate terminal, the resistor and the compensation capacitor having a time constant R×C greater than a target glitch tolerance of the supply-glitch-tolerant voltage regulator, where R is a resistance of the resistor and C is a capacitance of the compensation capacitor.
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