78LXX 데이터 시트보기 (PDF) - Contek Microelectronics
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78LXX Datasheet PDF : 7 Pages
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78LXX
LINEAR INTEGRATED CIRCUIT
Contek 78L18 ELECTRICAL CHARACTERISTICS
(VI=27V,Io=40mA ,0 C<Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Tj=25 C
17.3
Output Voltage
VO
21V<=VI<=33V,I O=1mA-40mA 17.1
21V<=VI<=VMAX,
17.1
IO=1mA-70mA
Load Regulation
Vo Tj=25 C,IO=1mA-100mA
Tj=25 C,IO=1mA-40mA
Line regulation
Vo 21V<=VI<=33V,Tj=25 C
Quiescent Current
22V<=VI<=33V,Tj=25 C
DIq VIN=27V,I O=0mA,Tj=25 C
Quiescent Current Change
DIq 21V<=VI<=33V
DIq 1mA<=VI<=40mA
Output Noise Voltage
VN 10Hz<=f<=100kHz
Temperature coefficient of Vo
DVo/DT Io=5mA
Ripple Rejection
RR 23V<=VI<=33V,f=120Hz,Tj=25 C 34
Dropout Voltage
Vd Tj=25 C
TYP
18
30
15
145
135
2.0
150
-1.8
48
1.7
MAX UNIT
18.7 V
18.9 V
18.9 V
(note 2)
170 mV
85 mV
300 mV
250 mV
6.0 mA
1.5 mA
0.1 mA
uV
mV/ C
dB
V
Contek 78L24 ELECTRICAL CHARACTERISTICS
(VI=33V,Io=40mA ,0 C <Tj<125 C,C1=0.33uF,Co=0.1uF,unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Output Voltage
Tj=25 C
23
VO
27V<=VI<=38V,I O=1mA-40mA 22.8
27V<=VI<=VMAX,
22.8
Load Regulation
IO=1mA-70mA
Vo Tj=25 C,IO=1mA-100mA
Line regulation
Tj=25 C,IO=1mA-40mA
Vo 27V<=VI<=38V,Tj=25 C
28V<=VI<=38V,Tj=25 C
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Temperature coefficient of Vo
DIq
DIq
DIq
VN
DVo/DT
VIN=33V,I O=0mA,Tj=25 C
27V<=VI<=38V
1mA<=VI<=40mA
10Hz<=f<=100kHz
Io=5mA
Ripple Rejection
Dropout Voltage
RR 27V<=VI<=38V,f=120Hz,Tj=25 C 34
Vd Tj=25 C
TYP
24
40
20
160
150
2.2
200
-2.0
45
1.7
MAX UNIT
25
V
25.2 V
25.2 V
(note 2)
200 mV
100 mV
300 mV
250 mV
6.0 mA
1.5 mA
0.1 mA
uV
mV/ C
dB
V
Note 1: The Maximum steady state usable output current is dependent on input voltage, heat sinking, lead length of
the package and copper pattern of PCB. The data above represent pulse test conditions with junction
temperatures specified at the initiation of test.
Note 2: Power dissipation<0.5W
Contek Microelectronics Co.,Ltd.
5
CONTEK
http://www.contek-ic.com E-mail:sales@contek-ic.com
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