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PJ1583CM

Dual Input Low Dropout Voltage Regulator

Promax Johnton 

PJ1581/PJ1582/PJ1583

Dual Input Low Dropout Voltage Regulator

ABSOLUTE MAXIMUM RATINGS

Parameter

Value

Unit

V power

7

Input Voltage

V

V control

13

PJ1581

5

Output Current

PJ1582

3

A

PJ1583

1.5

Power Dissipation

Internally Limited

W

Operating Junction Temperature

0 ~ +125

Operating Ambient Temperature

Storage Temperature

-20 ~ +85

℃

-25 ~ +150

Lead Temperature (Soldering) 10 sec.

+260

ELECTRICAL CHARACTERISTICS (Note1)

(Tj=+25°C, CCTL = CPWR = COUT=10uF unless Specified)

Parameter

Reference Voltage

(Adj. Voltage Versions)

Reference Voltage

(Fixed Voltage Versions)

Line Regulation

Load Regulation

Mini. Load Current (Note 2)

Control Pin Current (Note 3)

Adjust Pin Current

Current Limit

Ripple Rejection

Thermal Regulation

Dropout Voltage (Note 4)

Test Conditions

VCONTROL=4.5V, VPOWER=2.05V, ILOAD=10mA

VCONTROL=4.5V, VPOWER=2.05V, ILOAD=10mA to Io

VCONTROL=5V, VPOWER= VOUT+0.8V, ILOAD=10mA

VCONTROL=5V, VPOWER= VOUT+0.8V, ILOAD=10mA to Io

Value

Unit

Min. Typ. Max.

1.238

1.262

1.250

V

1.230

1.270

-1.0

+1.0

-1.6 VOUT +1.6

%

VCONTROL=(Vout+1.5V) to 12V,

VPOWER= (VOUT+0.8V) to 5.5V, ILOAD=10mA

0.04 0.2

%

VCONTROL=(Vout+2.5V), VPOWER= (VOUT+0.8V),

ILOAD=10mA to Io

VCONTROL=5V, VPOWER= 3.3V, VADJ=0V

VPOWER= (VOUT+2.5V),

VPOWER= (VOUT+0.8V), ILOAD=10mA to Io

PJ1581, Io=5A

PJ1582, Io=3A

PJ1583, Io=1.5A

VCONTROL=2.75V, VPOWER= 2.05, VADJ=0V, ILOAD=10mA

VPOWER - VOUT = 3V

PJ1581

5.5

PJ1582

3.1

PJ1583

1.6

VCONTROL=VPOWER=5V, VRIPPLE=1V, ILOAD=2.5A, 120kHz

60

30mS pulse

VCONTROL=(Vout+2.5V), ILOAD=Io

0.08 0.4

5

10

80 135

60 120

60

50 120

6.8

4

2.3

80

0.003

0.55 0.70

%

mA

mA

uA

A

dB

%/W

V

Note1: VOUT = VSENSE, VADJ = 0V unless otherwise specified.

Note2: For the adjustable device the minimum load current is the minimum current required to maintain regulation, normally the

current in the resistor divider used to set the output voltage is selected to meet the minimum load current requirement.

Note3: The control pin current is the drive current required for the output transistor, this current will track output current with

a ratio of about 1:100

Note4: If the same voltage is input to both VPOWER and VCONTROL, then the dropout voltage will become 1.3V maximum.

2-6

2002.rev.A

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