The MAX8940EXK28+T 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 MAX8940EXK28+T uses an advanced architecture to achieve low output voltage noise of 25μVRMS and PSRR of 45dB at 100kHz. The MAX8940EXK28+T is preset to either 2.8V or 3.0V. Designed with a p-channel MOSFET series pass transistor, the MAX8940EXK28+T maintain very low ground current (40μA). The regulator is designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8940EXK28+T requires only 1μF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1μA. Package is a 5-pin SC70.
Feature
- Space-Saving SC70
- 25μVRMS Output Noise at 100Hz to 100kHz Bandwidth
- 65dB PSRR at 10kHz
- 120mV Dropout at 120mA Load
- Stable with 1μF Ceramic Capacitor for Any Load
- Guaranteed 120mA Output
- Output Voltages: 2.8V or 3V
- Low 40μA Ground Current
- Excellent Load/Line Transient
- Overcurrent and Thermal Protection
Applications
- Base Stations
- Bluetooth Portable Radios and Accessories
- Cellular and Cordless Phones
- Digital Cameras
- PDA and Palmtop Computers
- Personal Stereos
- Portable and Battery-Powered Equipment
- Wireless LANs
