EUP7914
150mA Low-Noise LDO in SC-82
Without A Bypass Capacitor
DESCRIPTION
The EUP7914 is an efficient CMOS low dropout (LDO)
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 EUP7914 provides a very low noise
output without a bypass capacitor, ideal for RF
applications where a clean supply voltage source is
required. Specifically designed for handheld and
battery-powered devices, the EUP7914 provides a
TTL-logic-compatible enable pin. When the EUP7914
is disabled, power consumption drops nearly to zero.
Key features include current limit, thermal shutdown
and faster transient response.
The EUP7914 works with low-ESR ceramic capacitors.
Available in the SC-82 space saving package which
reduces the amount of board space for power
applications. The EUP7914 offers wide fixed output
voltage versions.
FEATURES
2.5V to 5.5V Input Voltage Range
30µV(rms) Output Noise
90mV Dropout @ 150mA
70dB PSRR at 1kHz No Bypass Capacitor
Low 30µA Ground Current
Guaranteed 150mA Output Current
Stable with a 1µF Ceramic Output Capacitor when
V
OUT
≥
1.5V, or 2.2µF when V
OUT
<1.5V
Excellent Load/Line Transient
Thermal Shutdown and Current Limit
Protection
Available 1.2V to 3.6V Fixed Output Voltages
(50mV increments)
Space-Saving 4-pin SC-82 Package
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Cellular Phones
Camera Modules
PDA and Palmtop Computers
Consumer/Personal Electronics
Block Diagram
Figure 1.
DS7914
Ver1.0
Nov. 2008
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
