205 Crawford Street, Leominster, MA 01453 USA (978) 534-5776 FAX (978) 537-4246

3.3

COM137T

Parameter

Symbol

Test Conditions

Min.

Max.

Unit

Reference Voltage

V

REF

V

-1.275

-1.225

V

•

-1.30

-1.20

V

V

-1.275

-1.225

V

•

-1.30

-1.20

Line Regulation

R

LINE

3.0 V

V

40V, T

-99

(Note 1)

3.0 V

V

40V

•

-23

23

m V

Load Regulation

R

LOAD

V

I

L

1.5A

•

-25

25

(Note 1)

V

I

L

1.5A, T

-25

25

m V

V

I

L

200mA, T

-25

25

V

I

L

100mA

•

-25

25

Thermal Regulation

V

RTH

V

i

-55

m V

P

Ripple Rejection

R

N

f = 120 Hz, V

•

66

dB

(Note 2)

C

Adjustment Pin Current

I

Adj

V

•

100

V

•

100

µA

Adjustment Pin

³

I

3.0V

V

40V

•

-55

µA

Current Change

³

I

V

I

L

1.5A

•

-55

µA

Miminum Load Current

I

Lmin

V

•

3.0

V

•

3.0

m A

V

•

5.0

Current Limit

I

CL

V

5V

•

1.5

3.5

(Note 2)

V

0.24

1.2

A

Notes:

1

. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.

Changes in output voltage due to heating effects must be taken into account separately.

2

. If not tested, shall be guaranteed to the specified limits.

3

. The

T

A

125°C, I

MECHANICAL OUTLINE

TO-257AA

.430

.410

.200

.190

.038 MAX.

.005

.120 TYP.

.537

.527

.665

.645

.420

.410

.150

.140

.750

.500

.100 TYP.

.035

.025

.045

.035

PIN CONNECTION

Isolated

Pin 1:

Adjust

Pin 2:

Input

Pin 3:

Output

Tab:

Isolated

12 3