LR78M18 datasheet(8/11 Pages) LRC

8 / 11 page

Electrical Characteristics (LR78M24) (Continued)

(Refer to the test circuits, 0 < TJ < +125

°C, IO=350mA, VI=33V, unless otherwise specified, CI =0.33µF, CO=0.1µF)

Note:

1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken

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

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Output Voltage

TJ =+25

°C23

IO = 5mA to 350mA

VI = 27V to 38V

22.8

25.2

Line Regulation (Note1)

∆VO

IO = 200mA

TJ =+25°C

VI = 27V to 38V

100

VI = 28V to 38V

Load Regulation (Note1)

∆VO

IO = 5mA to 0.5A, TJ =+25

°C

480

IO = 5mA to 200mA, TJ =+25

°C

240

Quiescent Current

TJ = +25

°C-

4.2

6.0

Quiescent Current Change

∆IQ

IO = 5mA to 350mA

0.5

IO = 200mA

VI = 27V to 38V

0.8

Output Voltage Drift

∆V/∆T

IO = 5mA

TJ = 0 to +125

°C

--1.2

mV/

°C

Output Noise Voltage

f = 10Hz to 100kHz

170

µV/Vo

Ripple Rejection

f = 120Hz, IO = 300mA

VI = 28V to 38V, TJ =+25

°C

-70

Dropout Voltage

TJ = +25

°C, IO = 500mA

Short Circuit Current

ISC

TJ = +25

°C, VI = 35V

300

Peak Current

IPK

TJ = +25

°C

700

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