ET-
78Lxx
78L24 Electrical Characteristics (TA=25oC, VIN=32V, IOUT=40mA, unless otherwise noted .)
Symbol
Parameter
Test Conditions*
Min. Typ. Max.
Unit
23
24
25
IO=1mA to 40mA
VOUT**
Output voltage
V
22.8
24.0
25.2
VIN=26.5V to 39V
IO=1mA to 70mA
VIN=26.5V to 39V
VIN=29V to 39V
IO=1mA to 40mA
IO=1mA to 100mA
0 to 125oC
22.8
24.0
95
78
28
41
33
97
1.7
4.8
-
25.2
480
400
120
240
-
-
-
Regline
Regload
Line regulation
Load regulation
mV
mV
-
-
PSRR
Vn
Ripple rejection
VIN=27.5V to 37.5V, f=120Hz
F=10Hz~100Hz
30
-
dB
uV
V
Output noise voltage
Dropout voltage
-
VDROPOUT
-
-
-
6.5
6.0
1.5
0.1
IQ
Bias current
mA
mA
125oC
0 to 125oC
-
VIN=28V to 39V
IO=1mA to 40mA
-
-
△IQ
Bias current change
-
-
Note:
* Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as
possible. Thermal effects must be taken into account separately. All characteristics are measured with a 0.33uF
capacitor across the input and a 0.1uF capacitor across the output.
** The specification applies only for DC power dissipation permitted by absolute maximum rating.
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Version 0.2 20 July 2011
8
ESTEK [ Estek Electronics Co. Ltd ]
