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 a
minimum of external components. It offers high
precision, ultra-low dropout, and low ground current.
The EUP7961 operates from an input of 2.5V to 5.5V.
This regulator uses small, 1µF ceramic input capacitors
and 4.7µF ceramic output capacitors to deliver 1A
output current. High bandwidth provides excellent
transient response. It is designed to drive digital
circuits requiring low voltage at 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 nominal value.
It is available in fixed output voltages of 1.5V, 1.8V,
2.5V, 3.3V and as an adjustable device with a 0.8V
reference voltage. The adjustable output voltage can be
set from 0.8V to 4.5V.
FEATURES
1A Guaranteed Output Current
300mV Dropout Voltage at 1A Output
Stable with Ceramic Capacitors
±1.8% Output Voltage Accuracy
300µA Low-Ground Pin Current
0.1µA Quiescent Current in Shutdown Mode
Excellent Line and Load Regulation
Thermal Shutdown and Current Limit Protection
Error Flag Indication
Available in SOT223, SOP-8 and SOT-89 Packages
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
LDO Linear Regulator for Low-Voltage Digital IC
PC Add-In Cards
High Efficiency Linear Power Supplies
Post Regulator
Typical Application Circuit
Figure1.
DS7961 Ver 1.2 Dec. 2006
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
