LX8940

PRODUCT DA T ABOOK 1996/1997

3

Copyright © 1999

Rev. 1.3

3/99

Input Voltage

V

IN

Load Current (with adequate heatsinking)

Maximum Line Transient (Load Dump), V

Input Capacitor (V

Output Capacitor with ESR of 10

Ω max., (V

RECOMMENDED OPERA TING CONDITIONS

Parameter

Symbol

Units

Recommended Operating Conditions

Min.

Typ.

Max.

Note 2

26

V

5

1000

mA

60

V

0.1

µF

10

µF

Note 2. V

IN (MIN)

= 1.2

∆V

(MAX)

. See Dropout Voltage maximum limit.

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, these specifications apply over the operating ambient temperatures of -40°C to +125°C for LX8940IP, and 0°C to +125°C

for LX8940CP; V

(Low duty cycle pulse testing techniques are used which maintains

junction and case temperatures equal to the ambient temperature.)

Parameter

Symbol

Test Conditions

Units

Output Voltage

V

O

I

Line Regulation

∆V

OI

7V

≤ V

Load Regulation

∆V

OL

50mA

≤ I

Output Impedance (Note 3)

r

O

100mA

Quiescent Current

I

Q

I

I

I

Output Noise Voltage (Note 3)

V

O RMS

10Hz - 100kHz, I

Long Term Stability (Note 3)

Ripple Rejection (Note 3)

R

R

f

Dropout Voltage

∆VI

I

I

Current Limit

I

CL

V

Maximum Operational Input Voltage

V

IN (MAX)

Maximum Line Transient

V

IN (TR)

R

4.85

5

5.15

V

150

mV

10

50

mV

200

m

Ω

315

mA

30

50

mA

115

180

mA

150

µV

RMS

20

mV/1000hr

66

dB

150

300

mV

275

500

mV

400

800

mV

1

1.2

A

26

31

V

60

V

LX8940

Min.

Typ.

Max.

Note 3. These parameters, although guaranteed, are not tested in production.