模拟IC Analog IC
General Description
The MAX8877/MAX8878 low-noise, low-dropout linear regulators operate from a 2.5V to 6.5V input and deliver up to 150mA. These devices are pin-compatible with the industry-standard "2982 and offer an improved dropout voltage. Typical output noise is 30µVRMS, and typical dropout is only 165mV at 150mA. The output voltage is preset to voltages in the range of 1.5V to 5.0V, in 100mV increments.
Features
♦ Pin-Compatible with the Industry-Standard "2982
♦ Low Output Noise: 30µVRMS
♦ Low 55mV Dropout at 50mA Output 165mV at 150mA output
♦ Low 85µA No-Load Supply Current
♦ Low 100µA Operating Supply Current even in dropout
♦ Thermal-Overload and Short-Circuit Protection
♦ Reverse Battery Protection
♦ Output Current Limit
♦ Preset Output Voltages ±1.4% Accuracy
♦ 10nA Logic-Controlled Shutdown
Applications
Cellular Telephones
Cordless Telephones
PCS Telephones
PCMCIA Cards
Modems
Hand-Held Instruments
Palmtop Computers
Electronic Planners
