5

IL7818

Electrical characteristics

(Vin = 27V, Io = 500mA, TJ = Tlow to Thigh (Note 1) unless otherwise noted)

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ=+25

°C)

Vo

17.3

18

18.7

Vdc

Output Voltage

21Vdc

≤Vin≤33Vdc

Vo

17.1

18

18.9

Vdc

Line Regulation(TJ=+25

°C, Note2)

21Vdc

≤Vin≤33Vdc

24Vdc

≤Vin≤30Vdc

Regline

-

-

25

10

360

180

mV

Load Regulation(TJ=+25

°C,Note2)

5.0mA

≤Io≤1.5A

250mA

≤Io≤750 mA

Regload

-

-

55

22

360

180

mV

Quiescent Current (TJ=+25

°C)

IB

-

4.5

8.0

mA

Quiescent Current Change

21Vdc

≤Vin≤33Vdc

5.0mA

≤Io≤1.0A

∆ IB

-

-

-

-

1.0

0.5

mA

Ripple Rejection

22Vdc

≤Vin≤33Vdc, f = 120 Hz

RR

-

57

-

dB

Dropout Voltage (Io=1.0A,T =+25

°C)

Vin-Vo

-

2.0

-

Vdc

Output Noise Voltage(TA=+25

°C)

10 Hz

≤f≤100 kHz

Vn

-

10

-

µV/Vo

Output Resistance f = 1.0 kHz

ro

-

19

-

m

Ω

Short - Circuit Current Limit

(TA=+25

°C) Vin = 35 Vdc

Isc

-

0.2

-

A

Peak Output Current(TJ=+25

°C)

Imax

-

2.2

-

A

Average Temperature Coefficient of

Output Voltage

TCVo

-

-1.0

-

mV/

°C

IL7824

Electrical characteristics

(Vin = 33V, Io = 500mA, TJ = Tlow to Thigh (Note 1) unless otherwise noted)

Characteristic

Symbol

Min

Typ

Max

Unit

Output Voltage (TJ=+25

°C)

Vo

23

24

25

Vdc

Output Voltage

27Vdc

≤Vin≤38Vdc

Vo

22.8

24

25.2

Vdc

Line Regulation(TJ=+25

°C, Note2)

27Vdc

≤Vin≤38Vdc

30Vdc

≤Vin≤38Vdc

Regline

-

-

31

14

480

240

mV

Load Regulation(TJ=+25

°C,Note2)

5.0mA

≤Io≤1.5A

250mA

≤Io≤750 mA

Regload

-

-

60

25

480

240

mV

Quiescent Current (TJ=+25

°C)

IB

-

4.6

8.0

mA

Quiescent Current Change

27Vdc

≤Vin≤38Vdc

5.0mA

≤Io≤1.0A

∆ IB

-

-

-

-

1.0

0.5

mA

Ripple Rejection

28Vdc

≤Vin≤38Vdc, f = 120 Hz

RR

-

54

-

dB

Dropout Voltage (Io=1.0A,T =+25

°C)

Vin-Vo

-

2.0

-

Vdc

Output Noise Voltage(TA=+25

°C)

10 Hz

≤f≤13100 kHz

Vn

-

10

-

µV/Vo

Output Resistance f = 1.0 kHz

ro

-

20

-

m

Ω

Short - Circuit Current Limit

(TA=+25

°C) Vin = 35 Vdc

Isc

-

0.2

-

A

Peak Output Current(TJ=+25

°C)

Imax

-

2.2

-

A

Average Temperature Coefficient of

Output Voltage

TCVo

-

-1.5

-

mV/

°C

Note:

1. Tlow = 0

°C , Thigh = +125 0 °C

2.Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken

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