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
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
v o l t a g e p r og r a m m a bl e a s l o w a s 0 . 8 V. 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 .
Applications
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Front Side Bus VTT (1.2V/1.5A)
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NoteBook PC Applications
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Motherboard Applications
Typical Application
100k
VIN
10uF
CTRL
VI N
VOUT
VOUT
C1
R1
0
CTRL
1uF
PAM3108
ADJ
EN
10uF
ON
OFF
0
R2
0
0
0
V
O
=0.8V*(1+R1/R2)
Power Analog Microelectronics
,
Inc
www.poweranalog.com
07/2011 Rev1.0
1
PAM [ POWER ANALOG MICOELECTRONICS ]
