OMNIREL OM1830SCM, OM1830NCM Datasheet

3.3 - 69

3.3

Three T erminal, Positive Adjustable

Low Dropout Voltage Regulator In

Hermetic JEDEC TO-258AA Package

4 11 R1

Supersedes 1 06 R0

7.5 AMP LOW DROPOUT POSITIVE ADJUSTABLE

REGULATOR APPROVED TO DESC DRAWING 5962-89520

FEATURES

• Similar To Industry Standard LT1083

• Approved To DESC Standardized Military Drawing Number 5962-8952001Y

• Adjustable Output Voltage

• Built In Thermal Overload Protection

• Short Circuit Current Limiting

• Available In Isolated Package

• Maximum Output Voltage Tolerance is Guaranteed To ±1%

• Guaranteed Dropout Voltage At Multiple Current Levels

• Product Also Available in Non-Isolated Package

DESCRIPTION

This three terminal positive adjustable voltage regulator is designed to provide 7.5A

with higher efficiency than conventional voltage regulators. This device is designed

to operate down to 1 volt input to output differential and the dropout voltage is fully

specified as a function of load current. Supplied in easy-to-use hermetic TO-258

package, this device is ideally suited for Military applications where small size and

high reliability is required.

ABSOLUTE MAXIMUM RATINGS @ 25°C

Power Dissipation (P

d

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited

Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 V

Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C

Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C

Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C

Thermal Resistance:

q

JC

(Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.75°C/W

q

JC

(Non-Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.3°C/W

Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 A

OM1830SCM

OM1830NCM

3.3 - 70

3.3

OM1830SCM OM1830NCM

ELECTRICAL CHARACTERISTICS -55°C T

A

+125°C (unless otherwise specified)

Parameter Symbol Test Conditions Min. Max. Unit

Reference Voltage V

REF

V

IN

- V

OUT

Œ= 3.0 V, 1.238 1.262 V

I

OUT

= 10 mA, T

A

= 25° C

1.5 V V

IN

- V

OUT

Œ 25 V, • 1.225 1.270 V

10 mA I

OUT

5.0 A

Line Regulation ³V

OUT

1.5 V V

IN

- V

OUT

Π15 V, 0.2 %

(Note 1) ³V

IN

I

OUT

= 10 mA, T

A

= 25° C

15 V V

IN

- V

OUT

Œ 35 V, • 0.5 %

I

OUT

= 10 mA

Load Regulation ³V

OUT

V

IN

- V

OUT

Œ= 3.0 V, T

A

= 25° C 0.3 %

(Note 1) ³I

OUT

10 mA I

OUT

5.0 A

• 0.4 %

Dropout Voltage V

DO

I

OUT

= I

FL

, I

FL

= 5.0 A, ³V

REF

= 1% • 1.5 V

Thermal Regulation - 30 ms pulse, T

A

= +25° C 0.01 %/W

Ripple Rejection ³V

IN

f = 120 Hz, C

Adj

= 25 µF, • 60 dB

³V

OUT

C

OUT

= 25 µF (tantalum), I

FL

= 5.0 A,

V

IN

- V

OUT

Œ= 3.0 V, I

OUT

= I

FL

Adjust Pin Current I

Adj

1.5 V V

IN

- V

OUT

Œ 25 V • 120 µA

10 mA I

OUT

5.0 A

Adjust Pin Current Change ³I

Adj

1.5 V V

IN

- V

OUT

Œ 25 V • 5.0 µA

10 mA I

OUT

5.0 A

Miminum Load Current I

Min

V

IN

- V

OUT

Œ= 25 V • 10 mA

Current Limit I

Lim

V

IN

- V

OUT

Œ= 5.0 V • 8.0 A

V

IN

- V

OUT

Œ= 25 V • 0.4 A

Temperature Stability ³V

OUT

-55° C T

J

+125° C • 1.5 %

(Note 2) ³T

Long Term Stability ³V

OUT

T

A

= +125° C, t = 1000 hrs 1.0 %

(Note 2) ³T

Notes:

1. Line and Load Regulation are measured at a constant junction temperature using a low duty cycle pulse technique.

Although power dissipation is internally limited, regulation is guaranteed up to the maximum power dissipation of 60 W.

Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum

power dissipation will not be available over the full input/output voltage range.

2. Guaranteed by design, characterization or correlation to other tested parameters.

3. The • denotes the specifications which apply over the full operating temperature range.

PART NUMBER DESIGNATOR

Standard Military Drawing Number Omnirel Part Number

8952001Y OM1830SCM

8952001Z OM1830NCM

“Y” = Isolated