Electrical Characteristics (KA7824AE) (Continued)
Refer to the test circuits. 0°C < TJ < +125°C, IO = 1A, VI = 33V, CI = 0.33µF, CO = 0.1µF, unless otherwise specified.
KA7824AE
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VO
Output Voltage
TJ = +25°C
23.5 24 24.5
V
Regline Line Regulation(35)
IO = 5mA to 1A, PO ≤ 15W
VI = 27.3V to 38V
VI = 27V to 38V, IO = 500mA
23
24
25
–
18
240
mV
VI = 21V to 33V
–
6
240
TJ = +25°C VI = 26.7V to 38V
–
18
240
Regload Load Regulation(35)
VI = 30V to 36V
TJ = +25°C, IO = 5mA to 1.5A
–
6
120
–
15
100
mV
IO = 5mA to 1.0A
–
15
100
IO = 250mA to 750mA
–
7
50
IQ
Quiescent Current
TJ = +25°C
–
5.2
6.0
mA
∆IQ
Quiescent Current Change VI = 27.3V to 38V, TJ = +25°C
–
–
0.8
mA
VI = 27.3V to 38V, IO = 500mA
–
–
0.8
∆V/∆T Output Voltage Drift(36)
IO = 5mA to 1.0A
IO = 5mA
–
–
0.5
–
-1.5
–
mV/°C
VN
Output Noise Voltage
RR
Ripple Rejection(36)
f = 10Hz to 100kHz, TA = 25°C
f = 120Hz, IO = 500mA
VI = 28V to 38V
–
10
–
µV/Vo
–
54
–
dB
VDrop
rO
Dropout Voltage
Output Resistance(36)
IO = 1A, TJ = +25°C
f = 1kHz
–
2.0
–
V
–
20
–
mΩ
ISC
Short Circuit Current
IPK
Peak Current(36)
VI = 35V, TA = +25°C
TJ = +25°C
–
250
–
mA
–
2.2
–
A
Notes:
35. 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.
36. These parameters, although guaranteed, are not 100% tested in production.
20
KA78XXE/KA78XXAE Rev. 1.0.2
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