OM1321N2M datasheet(3/4 Pages) IRF

Part #	OM1321N2M

Description	1.5 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR APPROVED TO DESC DRAWING

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Manufacturer	IRF [International Rectifier]

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3.5

OM1321NTM, OM1321STM, OM1321NKM, OM1321SMM, OM1321NMM, OM1321N2M

OM1321STM

Vin

Cin*

0.1 µF

Vout

Co**

1.0 µF

R2

Adjust

IAdj

R1

240Ω

STANDARD APPLICATION

*Cin is required if regulator is located an

appreciable distance from power supply filter.

** Co is not needed for stability, however it does

improve transient response.

Vout = 1.25 V (1 +

)+ IAd j R2

Since IAdj is controlled to less than 100 µA,

the error associated with this term is negligible

in most applications.

R2

R1

Parameter

Symbol

Test Conditions

Min.

Max.

Unit

Reference Voltage

VREF

VDIFF = 3.0V, TA = 25°C

1.20

1.30

VDIFF = 3.3V

•

1.20

1.30

V

VDIFF = 40V

•

1.20

1.30

VDIFF = 60V

•

1.20

1.30

Line Regulation

RLINE

3.0V ≤ VDIFF ≤ 40V, Vout = Vref, TA = 25°C

-9

9

(Note 1)

3.3V ≤ VDIFF ≤ 40V, Vout = Vref

•

-23

23

mV

40V ≤ VDIFF ≤ 60V, Vout = Vref, TA = 25°C

-5

5

40V ≤ VDIFF ≤ 60V, Vout = Vref

•

-10

10

Load Regulation

RLOAD

VDIFF = 3.0V, 10mA ≤ IL ≤ 500 mA, TA = 25°C

-15

15

(Note 1)

VDIFF = 3.3V, 10mA ≤ IL ≤ 500 mA

•

-15

15

mV

VDIFF = 40V, 10mA ≤ IL ≤ 150 mA, TA = 25°C

-15

15

VDIFF = 40V, 10mA ≤ IL ≤ 100 mA

•

-15

15

VDIFF = 60V, 10mA ≤ IL ≤ 20 mA

•

-15

15

Thermal Regulation

VRTH

Vin = 14.6V, IL = 300 mA

-3.1

3.1

mV

Pd = 4.0 Watts, t = 20 ms, TA = 25°C

Ripple Rejection

RN

f = 120 Hz, Vout = Vref

•

66

dB

(Note 2)

CAdj = 10 µF, Iout = 100 mA

Adjustment Pin Current

IAdj

VDIFF = 3.0V, TA = 25°C

100

VDIFF = 3.3V

•

100

µA

VDIFF = 40V

•

100

VDIFF = 60V

•

100

Adjustment Pin

∆IAdj

VDIFF = 3.0V, 10mA ≤ IL ≤ 500 mA, TA = 25°C

-5

5

Current Change

VDIFF = 3.3V, 10mA ≤ IL ≤ 500 mA

•

-5

5

VDIFF = 40V, 10mA ≤ IL ≤ 150 mA, TA = 25°C

-5

5

VDIFF = 40V, 10mA ≤ IL ≤ 100 mA

•

-5

5

µA

3.0V ≤ VDIFF ≤ 40V, TA = 25°C

-5

5

3.3V ≤ VDIFF ≤ 40V

•

-5

5

3.3V ≤ VDIFF ≤ 60V

•

-5

5

Miminum Load Current

ILmin

VDIFF = 3.0V, Vout = 1.4V (forced)

5.0

VDIFF = 3.3V, Vout = 1.4V (forced)

•

5.0

mA

VDIFF = 40V, Vout = 1.4V (forced)

•

5.0

VDIFF = 60V, Vout = 1.4V (forced)

•

7.0

Current Limit

ICL

VDIFF = 5V

•

0.5

1.65

(Note 2)

VDIFF = 40V, TA = 25°C

0.15

0.65

A

VDIFF = 60V, TA = 25°C

0.02

0.28

Notes: Please see previous page.

ELECTRICAL CHARACTERISTICS -55°C ≤ T

A ≤ 125°C, IL = 8mA (unless otherwise specified)

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