EUP7987 Datasheet, PDF (1/11 Pages) Eutech Microelectronics Inc – 300mA Low-Noise Ultra Low-Dropout CMOS Regulator

EUP7987
300mA Low-Noise Ultra Low-Dropout
CMOS Regulator
DESCRIPTION
The EUP7987 low-noise, low-dropout, linear
regulator operates from a 2.5V to 5.5V input and is
guaranteed to deliver 300mA.
The EUP7987 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.
The EUP7987 is available in 1.8V, 2.5v, 2.8V, 3V,
3.3V, and adjustable versions.
FEATURE
z 300mA Guaranteed Output Current (500mA for
Pulsed Loads)
z 60dB PSRR at 1kHz
z 50µ V_RMS Output Voltage Noise
z 140mV Dropout at 300mA Load
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 SOT23-5 and SOT23-6 Package
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
DS7987 Ver 1.5 May .2005
Figure1.
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