EUP7961_09 Datasheet, PDF (1/13 Pages) Eutech Microelectronics Inc – 1A Ultra Low-Dropout Linear Regulator

EUP7961
1A Ultra Low-Dropout Linear Regulator
DESCRIPTION
The EUP7961 is a 1A low-dropout linear regulator that
provides a low voltage, high current output with
minimum external components. The features include
precision output voltage, ultra-low dropout voltage,
and low ground current.
The EUP7961 operates from an input of 2.5V to 5.5V.
This regulator uses a 1µF ceramic input capacitors and
a 4.7µF ceramic output capacitor to deliver 1A output
current. High bandwidth provides excellent transient
response. It is designed to power digital circuits
requiring low voltage with high currents (i.e., PLDs,
DSPs, microcontrollers, etc.).
Other features include thermal and current limit
protection, a logic-control shutdown mode and an error
flag output that goes low when the output voltage
drops 10% below the nominal value.
It is available in fixed output voltages of 1.5V, 1.8V,
2.5V, 3.3V or adjustable output voltage with a 0.8V
feedback voltage. The adjustable output voltage can be
set from 0.8V to 4.5V.
FEATURES
z 1A Guaranteed Output Current
z 300mV Dropout Voltage at 1A Output
z Stable with Ceramic Capacitors
z ±1.8% Output Voltage Accuracy
z 300µA Low-Ground Pin Current
0.1µA Quiescent Current in Shutdown Mode
z Excellent Line and Load Regulation
z Thermal Shutdown and Current Limit Protection
z Error Flag Indication
z Available in SOT223, SOP-8 and SOT-89 Packages
z RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
z Supply for Low-Voltage Digital IC
z PC Add-In Cards
z High Efficiency Linear Power Supplies
z Post Regulator
Typical Application Circuit
DS7961 Ver 1.4 Jan. 2009
Figure1.
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