EUP7965
150mA Low-Noise Low-Dropout
Linear Regulator
DESCRIPTION
The EUP7965 is designed for portable and wireless
applications with demanding performance and space
requirements.
The EUP7965 is stable with a small 1µF ±30% ceramic
output capacitor. The EUP7965’s performance is
optimized for battery powered systems to deliver low
noise, low dropout voltage, low quiescent current and
excellent line and load transient response.
An optional external bypass capacitor reduces the
output noise further without slowing down the load
transient response. Power supply rejection is better
than 65dB at low frequencies. High power supply
rejection is maintained down to low input voltage
levels common to battery operated circuits. Other
features include a logic-controlled shutdown mode,
short-circuit and thermal-shutdown protection. The
EUP7965 is available in a SOT23-5,SOT23-6 package.
FEATURES
2.5 to 5.5V Input Range
150mA Guaranteed Output
70dB PSRR at 1kHz @ V
IN
=V
OUT
+1V
50µVrms Output Noise (typ) over 10Hz to
100kHz
100mV Maximum Dropout with 150mA Load
Low 85µA No-load Supply Current
≤
1.5µA Shutdown Current
Fast Start-up time.
Stable with 1µF Ceramic Capacitors
Thermal Shutdown and Short-circuit Protection
Preset Output Voltage 1.5V, 1.8V, 2.5V, 2.8V,
2.85V, 3.0V ,3.3V, 4.8V ,5.0V and adjustable
SOT23-5,SOT23-6 package
RoHS Compliant and 100% Lead (Pb)-Free
APPLICATIONS
Cellular and Cordless Handsets
Bluetooth, Wireless LAN
PDAs and Palmtop Computers
Portable Information Appliances
Block Diagram
Figure 1.
DS7965 Ver1.5 March. 2006
1
EUTECH [ EUTECH MICROELECTRONICS INC ]
