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 UNIT
Output Voltage
VOUT
TJ=25°C
17.5V≦VIN≦30V,IOUT=1mA-40mA
17.5V≦VIN≦VMAX, IOUT=1mA-70mA
14.40 15.0 15.60 V
14.25
15.75 V
14.25
15.75 V(note 2)
Load Regulation
Line regulation
VOUT
VOUT
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
20 150 mV
25 150 mV
25 150 mV
15 75
mV
Quiescent Current
Quiescent Current Change
Output Noise Voltage
∆IQ VIN=23V,IOUT=0mA,TJ=25°C
∆IQ
20V≦VIN≦30V
1mA≦VIN≦40mA
eN 10Hz≦f≦100kHz
2.2 6.5
mA
1.5
mA
0.1
mA
90
uV
Temperature coefficient of VOUT
Ripple Rejection
∆VO/∆T IOUT=5mA
-1.3
RR 18.5V≦VIN≦28.5V,f=120Hz, TJ=25°C 34 63
mV/°C
dB
Dropout Voltage
VD 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 UNIT
Output Voltage
VOUT
TJ=25°C
21V≦VIN≦33V,IOUT=1mA-40mA
21V≦VIN≦VMAX,IOUT=1mA-70mA
17.28 18.0 18.72 V
17.10
18.90 V
17.10
18.90 V(note 2)
Load Regulation
Line regulation
VOUT
VOUT
TJ=25°C,IOUT=1mA-100mA
TJ=25°C,IOUT=1mA-40mA
21V≦VIN≦33V,TJ=25°C
22V≦VIN≦33V,TJ=25°C
30 170 mV
15 85
mV
145 300 mV
135 250 mV
Quiescent Current
Quiescent Current Change
Output Noise Voltage
∆IQ VIN=27V,IOUT=0mA,TJ=25°C
∆IQ
21V≦VIN≦33V
1mA≦VIN≦40mA
eN 10Hz≦f≦100kHz
2.0 6.0
mA
1.5
mA
0.1
mA
150
uV
Temperature coefficient of VOUT
Ripple Rejection
∆VO/∆T IOUT=5mA
RR 23V≦VIN≦33V,f=120Hz,TJ=25°C
-1.8
34 48
mV/°C
dB
Dropout Voltage
VD 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 UNIT
Output Voltage
VOUT
TJ=25°C
27V≦VIN≦38V,IOUT=1mA-40mA
27V≦VIN≦VMAX, IOUT=1mA-70mA
23.04 24.0 24.96 V
22.8
25.2
V
22.8
25.2 V(note 2)
Load Regulation
Line regulation
△VOUT
△VOUT
TJ=25°C,IOUT=1mA-100mA
TJ=25°C,IOUT=1mA-40mA
27V≦VIN≦38V,TJ=25°C
28V≦VIN≦38V,TJ=25°C
40 200 mV
20 100 mV
160 300 mV
150 250 mV
Quiescent Current
Quiescent Current Change
Output Noise Voltage
∆IQ VIN=33V,IOUT=0mA,TJ=25°C
∆IQ
27V≦VIN≦38V
1mA≦VIN≦40mA
eN 10Hz≦f≦100kHz
2.2 6.0
mA
1.5
mA
0.1
mA
200
uV
Temperature coefficient of VOUT
Ripple Rejection
∆VO/∆T IOUT=5mA
RR 27V≦VIN≦38V,f=120Hz,TJ=25°C
-2.0
34 45
mV/°C
dB
Dropout Voltage
VD 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
www.unisonic.com.tw
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QW-R101-001,AG