General Description

The MAX8510/MAX8511/MAX8512 ultra-low-noise, low dropout (LDO) linear regulators are designed to deliver up to 120mA continuous output current. These regulators achieve a low 120mV dropout for 120mA load current. The MAX8510 uses an advanced architecture to achieve ultra-low output voltage noise of 11μVRMS and PSRR of 54dB at 100kHz.

The MAX8511 does not require a bypass capacitor, hence achieving the smallest PC board area. The MAX8512’s output voltage can be adjusted with an external divider.

The MAX8510/MAX8511 are preset to a variety of voltages in the 1.5V to 4.5V range. Designed with a P-channel MOSFET series pass transistor, the MAX8510/MAX8511/MAX8512 maintain very low ground current (40μA). The regulators are designed and optimized to work with low-value, low-cost ceramic capacitors. The MAX8510 requires only 1μF (typ) of output capacitance for stability with any load. When disabled, current consumption drops to below 1μA.

Package options include a 5-pin SC70 and a tiny 2mm x 2mm x 0.8mm TDFN package.

Features

? Space-Saving SC70 and TDFN (2mm x 2mm) Packages

? 11μVRMS Output Noise at 100Hz to 100kHz Bandwidth (MAX8510)

? 78dB PSRR at 1kHz (MAX8510)

? 120mV Dropout at 120mA Load

? Stable with 1μF Ceramic Capacitor for Any Load

? Guaranteed 120mA Output

? Only Need Input and Output Capacitors (MAX8511)

? Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3V, 3.3V, 4.5V

?? (MAX8510/MAX8511) and Adjustable (MAX8512)

? Low 40μA Ground Current

? Excellent Load/Line Transient

? Overcurrent and Thermal Protection

Applications

?? Cellular and Cordless Phones

?? PDA and Palmtop Computers

?? Base Stations

?? Bluetooth Portable Radios and Accessories

?? Wireless LANs

?? Digital Cameras

?? Personal Stereos

?? Portable and Battery-Powered Equipment