PAM3105 Datasheet, PDF (1/12 Pages) Power Analog Micoelectronics – 0.5A Low Voltage- Low Dropout CMOS Regulator

PAM3105
0.5A Low Voltage- Low Dropout CMOS Regulator
Key Features
n Low-Dropout Regulator Supports Input
Voltages Down to 1.4V
n Output Voltage Available in 0.9V, 1.0V,
1.2V, 1.5V,1.8V, 2.5V,2.8V,2.85V,3.0V,3.3V
n Stable with a Ceramic Output Capacitor
of 1.0uF or Higher
n Low Dropout Voltage :50mV@ 0.5A
n Low Quiescent Current
n Over Temperature Shutdown
n Low Temperature Coefficient
n Pb-Free Package
Applications
n DSP, FPGA and Microprocessor Power
Supplies
n 1.2V Core Voltage for DSPs
n LCD TV/ Monitors
n Wireless Devices
n Communication Devices
n Portable Electronics
n Post Regulator for SMPS
Typical Application
General Description
The PAM3105 is a 0.5A CMOS LDO regulator that
features a low quiescent current, ultra low input,
output and dropout voltages, as well as over
temperature shutdown. It is available in a SOT-89
package. The fixed output voltage of the
PAM3105 is set at the factory and trimmed to
±2.0%. The device is stable with a ceramic output
capacitor of 1.0uF or higher.
This family of regulators can provide either a
stand-alone power supply solution or act as a post
regulator for switch mode power supplies. They
are particularly well suited for applications
requiring low input and output voltages.
Block Diagram
VIN
VIN
VOUT
PAM3105
C_IN
4.7uF
GND
VOUT
C_O
2.2uF
VIN
VOUT
Thermal
Shutdown
R1
AMP
R2
GND
Power Analog Microelectronics,Inc
www.poweranalog.com
1
08/2007