19-4662; Rev 0; 6/09
com
Low-Noise, High PSRR, Low-Dropout, 120mA Linear
Regulator
General Description
The MAX8940 low-noise, low-dropout (LDO) linear
regulator is designed to deliver up to 120mA continuous output current.
This
regulator achieves a low 120mV dropout for 120mA load current.
The MAX8940 uses an advanced architecture to achieve low output voltage noise of 25µVRMS and PSRR of 45dB at 100kHz.
The MAX8940 is preset to either 2.
8V or 3.
0V.
Designed with a p-channel MOSFET series pass
transistor, the MAX8940 maintain very low ground current (40µA).
The
regulator is designed and optimized to work with lowvalue, low-cost ceramic capacitors.
The MAX8940 requires only ...