EUP7982 Datasheet, PDF (1/10 Pages) Eutech Microelectronics Inc – 300mA Low-Noise Ultra Low-Dropout CMOS Regulator with Fault Indicator

EUP7982
300mA Low-Noise Ultra Low-Dropout
CMOS Regulator with Fault Indicator
DESCRIPTION
The EUP7982 low-noise, low-dropout, linear
regulator operates from a 2.5V to 5.5V input and is
guaranteed to deliver 300mA.
The EUP7982 is stable with small 2.2µF ceramic
capacitor. Its performance suits battery powered
applications because of its shutdown mode (60 nA
typ), low quiescent current (110µA typ), and LDO
voltage (140mV typ). The low dropout voltage
allows for more utilization of a battery’s available
energy by operating closer to its end-of-life voltage.
An output fault-detection circuit indicates loss of
regulation.
The EUP7982 is available in MSOP package with
1.8V, 2.5v, 2.8V, 3V, 3.3V, and adjustable versions.
FEATURE
z 2.5V to 5.5V Input Range
z 300mA Guaranteed Output Current
z 60dB PSRR at 1kHz
z 50µV RMS Output Voltage Noise (10Hz to
100kHz)
z 140mV Dropout at 300mA
z Low 110µA No-Load Supply Current
z ≤ 1µA Shutdown Current
z Fast Start-up Time
z Stable With 2.2µF Ceramic Output Capacitors
z Thermal Shutdown and Short-Circuit Protection
z Fault Indicator
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Wireless Handsets
z DSP Core Power
z Battery Powered Electronics
z Portable Information Appliances
Block Diagram
DS7982 Ver 1.4 May.2005
Figure1.
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