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MAX8511：Ultra-Low-Noise, High PSRR, Low-Dropout, 120mA Linear Regulators

Low-Noise, Low-Dropout, 120mA Linear Regulators Fit in an SC70 Package without Compromising Performance

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.

Key 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

MAX8510, MAX8511, MAX8512: Functional Diagram Applications/Uses 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

DataSheet

Parametrics

Design kits & evaluation modules

• MAX11205PMB1

Quality and Environmental Data

• MAX8511.pdf

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