OMNI OM1860STM, OM1860NKM, OM1860NHM Datasheet

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OMNI OM1860STM, OM1860NKM, OM1860NHM Datasheet

OM1860NKM OM1860STM

OM1860NHM

1.5 AMP LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR APPROVED TO DESC DRAWING 5962-89981

Three Terminal, Positive Adjustable

Low Dropout Voltage Regulator In

Hermetic Packages

FEATURES

Similar To Industry Standard LT1086

Approved To DESC Standardized Military Drawing Number 5962-89981

Adjustable Output Voltage

Built In Thermal Overload Protection

Short Circuit Current Limiting

Maximum Output Voltage Tolerance is Guaranteed To ±1%

Guaranteed Dropout Voltage At Multiple Current Levels

TO-257 Available in Isolated and Non-Isolated Packages

DESCRIPTION

This three terminal positive adjustable voltage regulator is designed to provide 1.5A with higher efficiency than conventional voltage regulators. This device is designed to operate to 1 Volt input to output differential and the dropout voltage is specified as a function of load current. Supplied in easy-to-use hermetic TO-257, TO-3 and TO-39 packages, this device is ideally suited for Military applications where small size and high reliability is required.

ABSOLUTE MAXIMUM RATINGS @ 25°C

Power Dissipation (Pd) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 3.3 Thermal Resistance:

θJC (TO-257, Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W θJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W θJC (TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0°C/W θJA (TO-3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35°C/W θJC (TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C/W θJA (TO-39) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140°C/W

Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 A Recommended Operating Conditions:

Output Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.3V to 15 V Ambient Operating Temperature Range (TA) . . . . . . . . . . . . . . . . - 55°C to + 125°C Input Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V to 25 V

1 08 R3

3.3 - 83

Supersedes 4 11 R2

OM1860STM OM1860NKM OM1860NHM

ELECTRICAL CHARACTERISTICS -55°C TA 125°C (unless otherwise specified)

Parameter

Symbol

Test Conditions

 

Min.

Max.

Unit

 

 

 

 

 

 

 

 

 

Reference Voltage

 

VREF

VIN - VOUT = 3.0 V, TA = 25° C

 

1.238

1.262

V

 

 

 

 

IOUT = 10 mA

 

 

 

 

 

 

 

 

1.5 V VIN - VOUT 25 V,

1.220

1.270

V

 

 

 

 

10 mA IOUT 1.0 A

 

 

 

 

Line Regulation

 

VOUT

1.5 V VIN - VOUT 15 V,

 

 

0.2

%

(Note 1)

 

VIN

 

IOUT = 10 mA, TA = 25° C

 

 

 

 

 

 

 

 

15 V VIN - VOUT 35 V,

 

0.5

%

 

 

 

 

IOUT = 10 mA

 

 

 

 

Load Regulation

 

VOUT

VIN - VOUT = 3.0 V, TA = 25° C

 

 

0.8

%

(Note 1)

 

IOUT

 

10 mA IOUT 1.0 A

 

 

 

 

 

 

 

 

 

 

1.0

%

Dropout Voltage

 

VDO

IOUT = 1.0 A, VREF = 1%

 

1.5

V

Thermal Regulation

-

 

30 ms pulse, TA = +25° C

 

 

0.04

%/W

Ripple Rejection

 

VIN

f = 120 Hz, CAdj = 25 µF,

60

 

dB

 

 

VOUT

 

COUT = 25 µF (tantalum), IOUT = 1.0 A,

 

 

 

 

 

 

 

 

VIN - VOUT = 3.0 V

 

 

 

 

Adjust Pin Current

 

IAdj

1.5 V VIN - VOUT 25 V,

 

120

µA

 

 

 

 

10 mA IOUT 1.0 A

 

 

 

 

Adjust Pin Current Change

 

IAdj

1.5 V VIN - VOUT 25 V,

 

5.0

µA

 

 

 

 

10 mA IOUT 1.0 A

 

 

 

 

Miminum Load Current

 

IMin

VIN - VOUT = 25 V

 

10

mA

Current Limit

 

ILim

VIN - VOUT 5.0 V

1.5

2.5

A

 

 

 

 

VIN - VOUT = 25 V

0.075

 

A

Temperature Stability

 

VOUT

-55° C TJ +125° C

 

1.5

%

(Note 2)

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Long Term Stability

 

VOUT

TA = +125° C, t = 1000 hrs

 

 

1.0

%

(Note 2)

 

T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 15 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.

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

PART NUMBER DESIGNATOR

Standard Military Drawing Number

Omnirel Part Number

Package

5962-8998101Y

 

OM1860NHM

 

TO-39

5962-8998101X

 

OM1860NKM

 

TO-3

5962-8998101U

 

OM1860STM

 

TO-257 (Isolated)

 

 

 

 

 

 

 

 

 

Part Numbering System

 

 

 

Voltage Regulators

 

 

OM-1860-S-T-M

 

* Package Codes:

 

 

 

 

Company

 

 

 

K= TO-204AA (TO-3)

 

 

Screening

H= TO-39

Identification

 

 

Part

Package

M= MIL-M 38535

T= TO-257AA

 

 

Number

 

 

(see Package codes*)

 

S= Isolated

N= Non isolated

3.3 - 84

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