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Low Drop Out Capless 100mA Voltage Regulator
The S3REGC10025GF22FDX is a capless regulator circuit which has been designed to provide 2.1V with a load current of up to 100mA.
No external capacitor is required; the regulator’s architecture has been designed so that it is stable without such an external capacitor, yet yielding a small area while consuming low ground current and allowing low-drop operation.
The S3REGC10025GF22FDX features an automatic feedback sensing option to maintain a constant regulated output voltage level. It has been designed to provide a stable output in both low-drop and high-drop operation, while maintaining minimum ripple on supply lines in the presence of large load current spikes inherent with switching loads, e.g. pipeline ADCs.
The S3REGC10025GF22FDX uses 1.8V I/O and 3.3V LDMOS devices from a standard 22nm FDX process. The circuit can be scaled for a range of load currents and capacitances.
As no external capacitor is needed, the S3REGC10025GF22FDX capless regulator can provide savings in terms of package pins and discrete capacitors, allowing reduced BOM costs and higher system reliability. It can be particularly useful if the IC design is ‘pad limited’.
No external capacitor is required; the regulator’s architecture has been designed so that it is stable without such an external capacitor, yet yielding a small area while consuming low ground current and allowing low-drop operation.
The S3REGC10025GF22FDX features an automatic feedback sensing option to maintain a constant regulated output voltage level. It has been designed to provide a stable output in both low-drop and high-drop operation, while maintaining minimum ripple on supply lines in the presence of large load current spikes inherent with switching loads, e.g. pipeline ADCs.
The S3REGC10025GF22FDX uses 1.8V I/O and 3.3V LDMOS devices from a standard 22nm FDX process. The circuit can be scaled for a range of load currents and capacitances.
As no external capacitor is needed, the S3REGC10025GF22FDX capless regulator can provide savings in terms of package pins and discrete capacitors, allowing reduced BOM costs and higher system reliability. It can be particularly useful if the IC design is ‘pad limited’.
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Block Diagram of the Low Drop Out Capless 100mA Voltage Regulator
