GSC1118

Page: 2/3

ISSUED DATE :2005/07/11

REVISED DATE :2005/10/04B

Pin Descriptions

Name

Description

GND

Ground

The output of the regulator. A minimum of 10uF capacitor must be connected from this pin to ground to insure stability.

The input pin of regulator. Typically a large storage capacitor is connected from this pin to ground to insure that the input

voltage does not sag below the minimum dropout voltage during the load transient response .This pin must always be 1.3V

EN

This input pin of regulator. TTL/CMOS compatible input Logic high= disable output, Logic Low or open= output enable.

( internal pull-down resistor~100K).

NC

No connection.

Absolute Maximum Ratings

Symbol

Parameter

Ratings

Unit

DC Supply Voltage

-0.3 to 18

V

Enable Pin Voltage

7

V

Power Dissipation

Internally Limited

Storage Temperature Range

-65 ~ + 150

:

Operating Junction Temperature Range

0 ~ + 150

:

Parameter

Conditions

Min Typ Max Unit

GSC1118-15

I

1.470 1.500 1.530

V

GSC1118-18

I

1.764 1.800 1.836

V

GSC1118-25

I

2.450 2.500 2.550

V

GSC1118-33

I

3.235 3.300 3.365

V

GSC1118-50

I

4.900 5.000 5.100

V

GSC1118-90

I

8.820 9.000 9.180

V

Output Voltage

GSC1118-12

I

11.760 12.00

0

12.24

0

V

Line Regulator

GSC1118-XX

I

-

-

0.2

%

GSC1118-15

-

12

15

mV

GSC1118-18

-

15

18

mV

GSC1118-25

-

20

25

mV

GSC1118-33

-

26

33

mV

GSC1118-50

-

40

50

mV

GSC1118-90

-

70

90

mV

Load Regulation

GSC1118-12

-

100

120

%

Dropout Voltage

GSC1118-XX

I

-

1.3

1.4

V

Current Limit

GSC1118-XX

1.1

-

-

A

Minimum Load Current

GSC1118-XX

0

T

:

J

125 :

-

5

10

mA

Logic Low (ON)

-

-

0.8

Enable Input Voltage

Logic High (OFF)

1.6

-

-

V

-

-

10

Enable Input Current

-

-

80

A

Thermal Regulation

-

0.008 0.04 %/W

Ripple Rejection

GSC1118-XX

-

60

70

dB

Temperature Stability

I

o=10mA

-

0.5

-

%

JA

Thermal Resistance

Junction–to-Ambient

(No heat sink ;No air flow)

-

150

-

/

: W

JC

Thermal Resistance

Junction-to-Case

Control Circuitry/Power Transistor

-

25

-

/

: W

Note 1: See thermal regulation specifications for charges 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=1/8” from the

package.

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

input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full

input/output range

Note 3: Quiescent current is defined as the minimum output current required to maintain regulation. At 12V input/output differential the

device is guaranteed to regulate if the output current is greater than 10mA.