Series

description

This series of fixed-voltage integrated-circuit

voltage regulators is designed for a wide range of

applications. These applications include on-card

regulation for elimination of noise and distribution

problems associated with single-point regulation.

In addition, they can be used with power-pass

elements to make high-current voltage regulators.

One of these regulators can deliver up to 100 mA

of output current. The internal limiting and

thermal-shutdown features of these regulators

make them essentially immune to overload. When

used as a replacement for a zener diode-resistor

combination, an effective improvement in output

impedance can be obtained, together with lower

bias current.

otherwise noted)

PARAMETER

TEST CONDITIONS

TJ‡

UNIT

J

MIN

TYP

MAX

V

7Vto20V

I

1 mA to 40 mA

25

°C

Output voltage

V

7 V t

o

20 V

I

1

A t 40

A

Full range

V

IO = 1 mA to 70 mA

Full range

Input

VI =

25

°C

mV

voltage regulation

VI =

25

°C

mV

Ripple rejection

VI =

f = 120 Hz

25

°C

dB

Output

IO = 1 mA to 100 mA

25

°C

mV

voltage regulation

IO = 1 mA to 40 mA

25

°C

mV

Output

noise voltage

f = 10 Hz to 100 kHz

25

°C

µV

Dropout voltage

25

°C

1.7

V

Bias current

25

°C

6

mA

Bias c rrent

125

°C

5.5

mA

Bias

VI =

Full range

1.5

mA

current change

IO = 1 mA to 40 mA

F ll range

0.1

mA

‡ Pulse-testing techniques maintain TJ as close to TA as possible. Thermal effects must be taken into account separately. All characteristics are

measured with a 0.33-

µF capacitor across the input and a 0.1-µF capacitor across the output. Full range for the 78L05 is T J = 0°C to 70°C

Wing Shing Computer Components Co., (H.K.)Ltd.

Tel:(852)2341 9276

Fax:(852)2797 8153

E-mail:

wsccltd@hkstar.com

Positive-Voltage Regulators

o

I =1mA to 40mA, V =10.5 to 23V

25 C

25 C

Bias current

Full

mV

mV

mA

mA

2-1

78L08

8

78L08

7.7

8

8.3

8

8.4

7.6

7.6

8

8.4

42

175

36

125

46

37

18

80

10

40

54

4

i

10.5V to 23V

11V to 23V

13V to 23V

11V to 23V

INPUT

COMMON

OUTPUT

TO-92

OUTP

UT

GND

INPUT

SOT-89

78L08ACZ

78L08CPK

O

C

I

4