Electrical Characteristic

V

V

C, C =4.7uF, C =2.2uF, unless otherwise noted.

IN

O

IN

O

O

A

=

+0.5V, T =25

3

08/2007

PAM3105

0.5A Low Voltage- Low Dropout CMOS Regulator

Parameters

Symbol

Test Conditions

MIN

TYP

MAX

UNITS

Input Voltage Range

Note 1

3.6

V

Output Voltage

Accuracy

Vo

Io=50mA

-2

2

%

Vo=0.9V

330

450

Vo=1.0V

220

350

2.5V>Vo

≥1.2V

20

150

Vo

≥2.5V

10

100

Vo=0.9V

330

500

Vo=1.0V

220

400

2.5V>Vo

≥1.2V

50

200

Dropout Voltage

Vo

≥2.5V

40

150

mV

Quiescent Current

Io=0mA

90

150

uA

Ground Pin Current

Io=1mA to 500mA

95

300

uA

Vo

≤2.5V,Io=10mA

Line Regulation

LNR

Vo

>2.5V,Io=10mA

0.1

1

%/V

Load Regulation

LDR

0.2

1.5

%

Over Temperature

Shutdown

OTS

150

℃

Over Temperature

Hysteresis

OTH

50

℃

Temperature Coefficient

TC

40

ppm/

℃

f=100Hz

65

f=1KHz

60

Power Supply Ripple

Rejection

PSRR

Io=100mA, Vo=0.9V

f=10KHz

40

dB

Output Noise

Vn

f=10Hz to 100kHz

40

uVrms

Note1: The minimum input voltage (V

) of the PAM3105 is determined by output voltage and dropout

voltage. The minimum input voltage is defined as:

V=V +V

IN(MIN)

IN(MIN)

O

drop

,

Power Analog Microelectronics Inc

www.poweranalog.com