EUP7221 Datasheet, PDF (1/1 Pages) Eutech Microelectronics Inc – Triple, Low-Noise, High-PSRR, 150mA LDO Without Bypass Capacitor

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
z Up to 150mA Output Current (Each LDO)
z 30µV_RMS Low Noise Output
z 60dB PSRR at 1KHz without Bypass Capacitor
z Low 70uA Ground Current Triple-LDO
z 190mV Dropout at 150mA
z One Shutdown pin Control Channel 2/1 Output
Channel 1 starts after Channel 2 reaches 90% of
Final Voltage
z Current Limiting and Thermal Protection
z Short Circuit Protection
z Available in SOT23-6 Package
z RoHS Compliant and 100% Lead(Pb)-Free
Halogen-Free
APPLICATIONS
z Cellular Phones
z Camera, Video Recorders
z PDAs and GPS
z Hand-held Equipment
Typical Application Circuit
DS7221 Ver1.0 May 2010
Figure1.
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