低噪声高PSRR的1A输出 LDO ZCC8801 替代 SGM2035C

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 (DFN1216-8,Iout=500mA,Vout=1.8V)
and 180mA dropout voltage (DFN1216-8,
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 DFN1216-8 package version.
MAIN FEATURES
 Supply Current (no load) : 85μA (typ.)
 Supply Current (Standby) : 0.1μA (typ.)
 Dropout Voltage: 180mV (DFN1216-8,
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 Voltage Range: 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 , Tablets and Smartphone
 Cameras, VCRs and Car Dash Cameras
 Low Light & Low Noise Cameras
Applications
 Communications and Infrastructure
 AR or VR Application

ZCC8801-Datasheet-VC1.3.pdf (8.86 MB, 下载次数: 2 )