KA350 datasheet(2/8 Pages) FAIRCHILD

Il numero della parte	KA350

Spiegazioni elettronici	3-Terminal 3A Positive Adjustable Voltage Regulator

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Produttore elettronici	FAIRCHILD [Fairchild Semiconductor]

Homepage	http://www.fairchildsemi.com

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KA350

2

Absolute Maximum Ratings

Electrical Characteristics

(VI-VO=5V, IO=1.5A, TJ=0

°C to + 125°C; PD ≤ PDMAX, unless otherwise specified)

Note:

1. Regulation is measured at constant junction temperature. Changes in output voltage due to heating effects must be taken

into account separately. Pulse testing with low duty cycle is used.

Parameter

Symbol

Value

Unit

Input Output Voltage Differential

VI - VO

35

VDC

Lead Temperature (Soldering, 10sec)

TLEAD

300

°C

Power Dissipation

PD

Internally limited

-

Operating Temperature Range

TOPR

0 ~ +125

°C

Storage Temperature Range

TSTG

-65 ~ +150

°C

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Line Regulation (Note1)

Rline

TA = +25

°C, 3V ≤ VI -VO ≤ 35V

-

0.015

0.03

%/V

Load Regulation (Note1)

Rload

TA = +25

°C, 3V ≤ VI -VO ≤ 35V

VO

≤ 5V

VO

≥ 5V

-5

0.1

25

0.5

mV

%

Adjustment Pin Current

IADJ

-

50

100

µA

Adjustment Pin Current

Change

∆IADJ

3V

≤ VI -VO ≤ 35V,

10mA

≤ Io ≤ 3A, PD ≤ PMAX

-

0.2

5.0

µA

Thermal Regulation

REGT

Pulse = 20ms, TA =+ 25

°C

-

0.002

-

%/W

Reference Voltage

VREF

3V

≤ VI -VO ≤ 35V, 10mA ≤ I O ≤ 3A,PD ≤ 30W 1.2

1.25

1.30

V

Line Regulation

Rline

3.0V

≤ VI -VO ≤ 35V

-

0.02

0.07

%/W

Load Regulation

Rload

10mA

≤ I O ≤ 3.0A

VO

≤ 5.0V

VO

≥ 5.0V

-20

0.3

70

1.5

mV

%

Temperature Stability

STT

TJ = 0

°C to + 125°C-

1.0

-

%

Maximum Output

Current

Io(MAX)

VI -VO

≤ 10V, PD ≤ PMAX

3.0

4.5

-

A

VI -VO = 30V, PD

≤ PMAX,TA = +25°C

0.25

1.0

-

A

Minimum Load Current

IL(MIN)

VI -VO = 35V

-

3.5

10

mA

RMS Noise, %of VOUT

VN

10Hz

≤ f ≤ 10KHz, TA= +25 °C

-

0.003

-

%/Vo

Ripple Rejection

RR

VO = 10V, f = 120Hz,

CADJ = 0

CADJ = 10

µF66

65

80

-dB

dB

Long-Term Stability

ST

TJ =+125

°C

-

0.3

1

%/

1000HR

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