EUP7221
Triple, Low-Noise, High-PSRR,
150mA LDO Without Bypass Capacitor
DESCRIPTION
The EUP7221 is a high accuracy, low noise, high PSRR,
triple CMOS low-dropout voltage regulator.
Performance features include low output noise, high
ripple rejection ratio, low dropout and very fast turn-on
times.
The EUP7221 is also fully compatible with low ESR
ceramic capacitors, reducing cost and improving output
stability. This high level of output stability is
maintained even during frequent load fluctuations, due
to the excellent transient response performance and
high PSRR achieved across a broad range of
frequencies.
The EN function allows the output of channel2/1
regulator to be turned off, resulting in greatly reduced
power consumption. The EUP7221 is available in
SOT23-6 package.
FEATURES
Up to 150mA Output Current (Each LDO)
30µV
RMS
Low Noise Output
60dB PSRR at 1KHz without Bypass Capacitor
Low 70uA Ground Current Triple-LDO
190mV Dropout at 150mA
One Shutdown pin Control Channel 2/1 Output
Channel 1 starts after Channel 2 reaches 90% of
Final Voltage
Current Limiting and Thermal Protection
Short Circuit Protection
Available in SOT23-6 Package
RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
Cellular Phones
Camera, Video Recorders
PDAs and GPS
Hand-held Equipment
Typical Application Circuit
Figure1.
DS7221
Ver1.0
May 2010
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
