低噪声高PSRR-LDO ZCC8801-Datasheet-VC1.5
发布时间：2023-4-17 17:51
发布者：四维电子
关键词：
低噪声高PSRR-LDO
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FUNCTIONAL DESCRIPTION The ZCC8801 series is a CMOS-based positive low-dropout linear regulator (LDO) featuring 500 mA/ 1.0A that provides high PSRR, high output voltage accuracy, low-noise and low supply current It consists of a voltage reference, an error amplifier, a resistor-ladder for output voltage setting. It also has under-voltage lockout (UVLO), over current/short circuit protection circuit and over temperature shutdown circuit. The ZCC8801 typically has 90mV dropout voltage (DFN 3-8, Iout=500mA,Vout=1.8V) and 180mA dropout voltage (DFN3 3-8 , Iout=1A, Vout=1.8V) and chip enable function (EN) for long battery life. Excellent ripple rejection, load transient and line transient response make it ideal for the power sources of mobile communication devices or camera modules in low light condition. It can also turn on under full load condition, making it suitable for harsh system environment. The ZCC8801 series LDOs have option for output current limit between 1.0A or 500mA by alternating the LCON pin between “H” or “L” for DFN3 3-8 package version. MAIN FEATURES Supply Current (no load) : 85μA (typ.) Supply Current (Standby) : 0.1μA (typ.) Dropout Voltage:180mV (DFN -8, Iout=1A, Vout=1.8V,typ.) High-PSRR 95dB (f=5kHz, Iout=10mA, lower Vout settings, typ.) 85dB (f=5kHz, Iout=150mA, lower Vout settings, typ.) Output Noise: 15μVrms (10-100KHz, 0.9V output voltage settings, typ.) Line Regulation: 0.01%/V Output VoltageRange: 0.85V to 4.3V with 0.05V step, 0.835V(min.) Built-in Short Current Protection Limit: 120mA (LCON=’H’,1.0A, typ.) Bulit-in Peak Current Protection Limit: 1.7A (LCON=’H’,1.0A, typ.) Built-in Thermal Shutdown Temperature: 165 ° C (typ.) Built-in Soft-Start and Inrush Current Suppression APPLICATIONS Portable Device , Tabletsand Smartphone Cameras, VCRs and Car Dash Cameras Low Light & Low Noise Cameras Applications Communications and Infrastructure AR or VR Application |
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