GJ1117A-1.8 datasheet(3/4 Pages) ETC2

Part #	GJ1117A-1.8

Description	1A Low Dropout Positive Adjustable or Fixed-Mode Regulator

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GJ1117A

Page: 3/4

ISSUED DATE :2003/08/02

REVISED DATE :2006/12/14E

Electrical Characteristics

Parameter

Conditions

MIN

TYP

MAX UNIT

Reference Voltage

GJ1117AADJ

Io=10mA, Tj=25 ,

: (Vin-Vout )=1.5V

1.225 1.250 1.275

V

GJ1117A-1.5

Io=10mA, Tj=25 ,

: 3.0V Vin 12V

1.470 1.500 1.530

V

GJ1117A-1.8

Io=10mA, Tj=25 ,

: 3.3V Vin 12V

1.764 1.800 1.836

V

GJ1117A-2.5

Io=10mA, Tj=25 ,

: 4.0V Vin 12V

2.450 2.500 2.550

V

GJ1117A-3.3

Io=10mA, Tj=25 ,

: 4.8V Vin 12V

3.235 3.300 3.365

V

Output Voltage

GJ1117A-5.0

Io=10mA, Tj=25 ,

: 6.5V Vin 12V

4.900 5.000 5.100

V

Line Regulation

GJ1117A-XXX

Io=10mA, Vout+1.5V<Vin<12V, Tj=25 :

-

0.2

%

GJ1117AADJ

Vin=3.3V, Vadj=0, 0mA<Io<1A, Tj=25 : (Note 1,2)

-

1

%

GJ1117A-1.5

Vin=3.0V, 0mA<Io<1A, TJ=25 : (Note 1,2)

-

12

15

mV

GJ1117A-1.8

Vin=3.3V, 0mA<Io<1A, TJ=25 : (Note 1,2)

-

15

18

mV

GJ1117A-2.5

Vin=4.0V, 0mA<Io<1A, TJ=25 : (Note 1,2)

-

20

25

mV

GJ1117A-3.3

Vin=5.0V, 0mA<Io<1A, TJ=25 : (Note 1,2)

-

26

33

mV

Load Regulation

GJ1117A-5.0

Vin=8.0V, 0mA<Io<1A, TJ=25 : (Note 1,2)

-

40

50

mV

Dropout Voltage

(VIN-VOUT)

GJ1117A-XXX

Io=1A, ( Vout=0.1% Vout)

-

1.3

1.4

V

Current Limit

GJ1117A-XXX

Vin-Vout=5V

1.1

-

A

Minimum Load Current

Adjustable model

Vin=5V

-

5

10

mA

Adjust Pin Current

Adjustable model

Vin=12V, Io=10mA

-

50

100

uA

Quiescent Current

fixed model

Vin=12V, Io=0mA

-

12

mA

Thermal Regulation

TA=25 ,30ms pulse

:

-

0.008

0.04

%/W

F=120HZ,COUT=25uF Tantalum, IOUT=1A

Ripple Rejection

GJ1117A-XXX

VIN=VOUT+3V

-

60

70

dB

Temperature Stability

IO=10mA

-

0.5

-

%

JA

Thermal Resistance

Junction-to-Ambient(No

heat sink ;No air flow)

-

92

-

/

: W

JC

Thermal Resistance

Junction-to-Case

Control Circuitry/Power Transistor

-

10

-

/

: W

Note 1: See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation

are measured at a constant junction Temperature by low duty cycle pulse testing. Load regulation is measured at the

output lead =1/18” from the package.

Note 2: Line and load regulation are guaranteed up to the maximum power dissipation of 15W. Power dissipation is

determined by the difference in input and output and the output current. Guaranteed maximum power dissipation will

not be available over the full input/output range.

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