WEITRON

http://www.weitron.com.tw

WT1117A

5/11

Rev-A 18-Oct-06

ELECTRICAL CHARACTERISTICS

Typicals and limits appearing in normal type apply for Tj 25°C

Parameter

Symbol

Min

Typ

Max Unit

Condition

Reference Voltage

Output Voltage

WT1117A-Adj

I

=10mA, V = 5V

10mA I

1.0A, 2.65V V

7V

OUT

IN

OUT

IN

V =

0 I

1.0A

IN

OUT

V

+1.5V to 7 V

OUT

1.232

1.225

1.250

1.250

1.268

1.275

V

%

Line Regulation

Load Regulation

%

%

1.15

2

1.3

7

Dropout Voltage

Current Limit

Minimum Load Current

WT1117A-Adj

I

=1.0A

OUT

V -V

=1.5V

IN OUT

V =5V, Vadj=0V

IN

1.0

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

V

A

mA

mA

Ground Current

7

13

35

0.005

0.003

72

90

Adjust Pin Current

Temp. Coefficient

Thermal Regulation

7V

IN

V -V

=1.5V,

=10mA

IN OUT

T

℃,

A

30ms pulse

=25

60

μA

%/W

dB

WT1117A-Adj

V -V

=1.5V,

=1.0A

IN OUT

% °

/ C

0.04

0.20

0.20

0.40

I

=10mA,

(1.5 V +V

)

Load

OUT

V

7V

OUT

V

V

+ 1.5V

I

=10mA to 1.0A

IN

OUT

Load

=

V

V

+ 1.5V

I

=10mA to 1.0A

IN

OUT

Load

=

I

=10mA, V =

+1.5V

OUT

OUT

%

All

All

All Fixed

Versions

All

All

Note 1 120Hz input ripple

μ

:

(

)

ADJ

C

for ADJ =25 F

-1.5

+

1.5

-

2

+

2

All

All

All