Features

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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

Disable

RoHS Compliant and 100% Lead (Pb)-Free

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Thermal and Over Current Protection

Front Side Bus VTT (1.2V/1.5A)

NoteBook PC Applications

Motherboard Applications

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 o g r a m m a b l e a s l o w a s 0 . 8 V. T h e

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

General Description

Typical Application

PAM3108

Maximum 1.5A, Ultra Low Dropout Regulator

1

www.poweranalog.com

07/2011 Rev1.0

,

Power Analog Microelectronics Inc

PAM3108

VI N

EN

C TR L

AD J

VOU T

10uF

10uF

100k

0

0

0

ON

OFF

VOU T

R 1

R 2

C 1

0

VIN

1uF

0

CTRL

V =0.8V*(1+R1/R2)

O