REG101 is a low noise, low difference linear voltage regulator family with low pin current. Its new DMOS topology features significant improvements over the previous design, including low voltage (only 60mV at full load) and better transient performance. In addition, no output capacitance is required for stability, unlike traditional low voltage drop regulators, which are difficult to compensate for and require expensive low ESR capacitors greater than 1μF.
Block diagram
Typically the pin current is only 500 μA(at I OUT = 100mA), dropping to 10nA in non-enabled mode. Unlike regulators with PNP-pass devices, the static current remains relatively constant under overload changes and power-off conditions. The REG101 has a very low output noise (typically 23μVrms, VOUT = 3.3V, CNR = 0.01μF), making it ideal for use in portable communications devices. Accuracy is mainly maintained for temperature, line, and load changes. Key parameters are tested in the specified temperature range (-40°C to +85°C).
Pin configuration
REG101 is well protected, with internal circuitry providing current limitation and protecting loads from damage. The thermal protection circuit prevents the chip from being damaged by excessive temperature. REG101 is available in SOT23-5 and SO-8 packs.
Package shape
