78LXX
LINEAR INTEGRATED CIRCUIT
ꢀ
ELECTRICAL CHARACTERISTICS (Cont.)
For UTC78L15 (VIN=23V, IOUT=40mA, 0°C <TJ<125°C, C1=0.33uF, Co=0.1uF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
14.40 15.0 15.60
UNIT
V
TJ=25°C
17.5V≦VIN≦30V,IOUT=1mA-40mA
Output Voltage
VOUT
14.25
14.25
15.75
V
17.5V≦VIN≦VMAX, IOUT=1mA-70mA
15.75 V(note 2)
TJ=25°C,IOUT=1mA-100mA
Tj=25°C,IOUT=1mA-70mA
17.5V≦VIN≦30V,TJ=25°C
20V≦VIN≦30V,TJ=25°C
20
25
25
15
2.2
150
150
150
75
mV
mV
mV
mV
mA
mA
mA
uV
Load Regulation
VOUT
Line regulation
VOUT
∆IQ
∆IQ
eN
Quiescent Current
Quiescent Current Change
VIN=23V,IOUT=0mA,TJ=25°C
20V≦VIN≦30V
6.5
1.5
0.1
1mA≦VIN≦40mA
10Hz≦f≦100kHz
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
90
-1.3
63
∆VO/∆T IOUT=5mA
mV/°C
dB
18.5V≦VIN≦28.5V,f=120Hz, TJ=25°C
RR
VD
34
Dropout Voltage
TJ=25°C
1.7
V
For UTC78L18 (VIN=27V,IOUT=40mA,0°C<TJ<125°C,C1=0.33uF,Co=0.1uF,unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
17.28 18.0 18.72
UNIT
V
TJ=25°C
21V≦VIN≦33V,IOUT=1mA-40mA
Output Voltage
VOUT
17.10
17.10
18.90
V
21V≦VIN≦VMAX,IOUT=1mA-70mA
18.90 V(note 2)
TJ=25°C,IOUT=1mA-100mA
TJ=25°C,IOUT=1mA-40mA
21V≦VIN≦33V,TJ=25°C
22V≦VIN≦33V,TJ=25°C
30
15
170
85
mV
mV
mV
mV
mA
mA
mA
uV
Load Regulation
VOUT
145
135
2.0
300
250
6.0
1.5
0.1
Line regulation
VOUT
∆IQ
∆IQ
eN
Quiescent Current
Quiescent Current Change
VIN=27V,IOUT=0mA,TJ=25°C
21V≦VIN≦33V
1mA≦VIN≦40mA
10Hz≦f≦100kHz
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
150
-1.8
48
∆VO/∆T IOUT=5mA
mV/°C
dB
23V≦VIN≦33V,f=120Hz,TJ=25°C
RR
VD
34
Dropout Voltage
TJ=25°C
1.7
V
For UTC78L24 (VIN=33V,IOUT=40mA,0°C <TJ<125°C,C1=0.33uF,Co=0.1uF,unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
23.04 24.0 24.96
UNIT
V
TJ=25°C
27V≦VIN≦38V,IOUT=1mA-40mA
Output Voltage
VOUT
22.8
22.8
25.2
V
27V≦VIN≦VMAX, IOUT=1mA-70mA
25.2 V(note 2)
TJ=25°C,IOUT=1mA-100mA
TJ=25°C,IOUT=1mA-40mA
27V≦VIN≦38V,TJ=25°C
28V≦VIN≦38V,TJ=25°C
40
20
200
100
300
250
6.0
mV
mV
mV
mV
mA
mA
mA
uV
△VOUT
△VOUT
Load Regulation
160
150
2.2
Line regulation
Quiescent Current
Quiescent Current Change
∆IQ
∆IQ
eN
VIN=33V,IOUT=0mA,TJ=25°C
27V≦VIN≦38V
1.5
1mA≦VIN≦40mA
0.1
10Hz≦f≦100kHz
Output Noise Voltage
Temperature coefficient of VOUT
Ripple Rejection
200
-2.0
45
∆VO/∆T IOUT=5mA
mV/°C
dB
27V≦VIN≦38V,f=120Hz,TJ=25°C
RR
VD
34
Dropout Voltage
TJ=25°C
1.7
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.
2.Power dissipation<0.5W
UNISONIC TECHNOLOGIES CO., LTD
5 of 8
QW-R101-001,AG
www.unisonic.com.tw
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