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EUP7917 Datasheet(PDF) 1 Page - Eutech Microelectronics Inc

Part No. EUP7917
Description  300mA, High PSRR Low-Noise LDO
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Maker  EUTECH [Eutech Microelectronics Inc]
Homepage  http://www.eutechmicro.com
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EUP7917 Datasheet(HTML) 1 Page - Eutech Microelectronics Inc

 
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EUP7917
DS7917 Ver1.2 Mar. 2008
1
300mA, High PSRR Low-Noise LDO
DESCRIPTION
The EUP7917 is an efficient, CMOS voltage regulator
optimized for ultra-low-noise applications. It offers
high output accuracy, extremely low dropout voltage
low
ground
current
and
fast
start-up
time.
The EUP7917 provides a very low noise output, ideal
for RF applications where a clean voltage source is
required. A noise bypass pin is also available for
further reduction of output noise.
Designed specifically for handheld and battery-
powered
devices,
the
EUP7917
provides
a
TTL-logic-compatible enable pin. When disabled,
power consumption drops nearly to zero.
The EUP7917 also works with low-ESR ceramic
capacitors, reducing the amount of board space
necessary for power applications, critical in handheld
wireless devices.
Available in the SC-70 and SOT23-5 package, the
EUP7917 offers a wide range of output voltages. Key
features include current limit, thermal shutdown and
faster transient response.
Block Diagram
FEATURES
Space-Saving 5-pin SC-70 Package
2.5V to 6V Input Voltage Range
50µV(rms) Output Noise
250mV Dropout @ 300mA
75dB PSRR at 1kHz
Low 70µA Ground Current
Up to 300mA Output Current
Stability with 1µF Ceramic Output Capacitors
Excellent Load/Line Transient
Thermal Shutdown and Current Limit
Protection
Available in 1.2V,1.3V,1.5V,1.8V,1.85V,
2.5V,2.8V,2.85V, 2.9V,3.0V,3.3V,3.5V,4.8V
and Adjustable Voltages
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Cellular Phones
Bluetooth Portable Radios and Accessories
PDA and Palmtop Computers
Consumer/Personal Electronics
Figure 1.


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