Diodes PAM3108 User Manual
Pam3108, Description, Features
PAM3108
Document number: DSxxxxx Rev. 1 - 0
1 of 11
www.diodes.com
October 2012
© Diodes Incorporated
PAM3108
A Product Line of
Diodes Incorporated
MAXIMUM 1.5A, ULTRA LOW DROPOUT REGULATOR
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 V
IN
as low
as 1.1V and V
DD
voltage 3V with output voltage programmable as low
as 0.8V. The significant feature includes ultra low dropout, ideal for
applications where V
OUT
is very close to V
IN
. Additionally, there is an
enable pin to further reduce power dissipation while shutdown. The
PAM3108 provides excellent regulation over variations in line, load,
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.
Features
•
Maximum 1.5A Low-Dropout Voltage Regulator
•
High Accuracy Output Voltage ±1.5%
•
Typically 150mV Dropout at 1.5A
•
Power Good Output
•
Output Voltage Pull Low Resistance when Disabled
•
Thermal and Over Current Protection
•
RoHS Compliant and 100% Lead (Pb)-Free
Pin Assignments
Applications
•
Front Side Bus VTT (1.2V/1.5A)
•
NoteBook PC Applications
•
Motherboard Applications
Typical Applications Circuit
V
O
= 0.8V*(1+R1/R2)