PAM3108 Datasheet, PDF (1/10 Pages) Power Analog Micoelectronics – Maximum 1.5A, Ultra Low Dropout Regulator

PAM3108
Maximum 1.5A, Ultra Low Dropout Regulator
Features
n Maximum 1.5A Low-Dropout Voltage
Regulator
n High Accuracy Output Voltage ±1.5%
n Typically 150mV Dropout at 1.5A
n Power Good Output
n Output Voltage Pull Low Resistance when
Disable
n Thermal and Over Current Protection
n RoHS Compliant and 100% Lead (Pb)-Free
Applications
n Front Side Bus VTT (1.2V/1.5A)
n NoteBook PC Applications
n Motherboard Applications
General Description
The PAM3108 is a high performance positive
voltage regulator designed for use in applications
requiring very low Input voltage and very low
dropout voltage at up to 1.5A. It operates with a VIN
as low as 1.1V and VDD voltage 3V with output
voltage pr ogr ammabl e as low as 0.8V. T he
significant feature includes ultra low dropout, ideal
for applications where VOUT is very close to VIN.
Ad ditionally, there is an enable pin to further reduce
power dissipation while shutdown. The PAM3108
provides excellent regulation over variations in line,
load and temperature. and provides a power OK
signal to indicate if the voltage level of Vo reaches
90% of its rating value.
The PAM3108 is available with SOP-8 (Exposed
Pad) and WDFN-10L 3x3 packages .
Typical Application
100k
VIN
CT RL
ON
OFF
10uF
0
1uF
0
VI N
VOU T
PAM3108
C TR L
AD J
EN
0
VO = 0 . 8 V * ( 1 + R 1 / R 2 )
C1
R1
R2
VOU T
10uF
0
0
Power Analog Microelectronics, Inc
www.poweranalog.com
1
07/2011 Rev1.0