78LXX
ELECTRICAL CHARACTERISTICS (Cont.)
LINEAR INTEGRATED CIRCUIT
For UTC78L12
(V
IN
=19V, I
OUT
=40mA, 0°C<T
J
<150°C,
C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
UNIT
11.52 12.0 12.48
V
T
J
=25°C
Output Voltage
V
OUT
14.5V≤V
IN
≤27V,I
OUT
=1mA-40mA
11.40
12.60
V
14.5V≤V
IN
≤V
MAX
, I
OUT
=1mA-70mA 11.40
12.60 V(note 2)
T
J
=25°C, I
OUT
=1mA-100mA
22
100
mV
Load Regulation
ΔV
OUT
T
J
=25°C, I
OUT
=1mA-40mA
13
50
mV
14.5V≤V
IN
≤27V,T
J
=25°C
25
300
mV
Line regulation
ΔV
OUT
16V≤V
IN
≤27V,T
J
=25°C
20
250
mV
Quiescent Current
I
Q
V
IN
=19V,I
OUT
=0mA,T
J
=25°C
2.0
6.0
mA
16V≤V
IN
≤27V
1.5
mA
Quiescent Current Change
ΔI
Q
1mA≤V
IN
≤40mA
0.1
mA
Output Noise Voltage
eN
10Hz≤f≤100kHz
80
μV
Temperature coefficient of V
OUT
ΔV
O
/Δ
T
I
OUT
=5mA
-1.0
mV/°C
Ripple Rejection
RR
15V≤V
IN
≤25V,f=120Hz,T
J
=25°C
37
65
dB
Dropout Voltage
V
D
T
J
=25°C
1.7
V
For UTC78L15
(V
IN
=23V, I
OUT
=40mA, 0°C<T
J
<150°C,
C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
UNIT
14.40 15.0 15.60
V
T
J
=25°C
Output Voltage
V
OUT
17.5V≤V
IN
≤30V,I
OUT
=1mA-40mA
14.25
15.75
V
17.5V≤V
IN
≤V
MAX
, I
OUT
=1mA-70mA
14.25
15.75 V(note 2)
25
150
mV
T
J
=25°C, I
OUT
=1mA-100mA
Load Regulation
ΔV
OUT
T
J
=25°C, I
OUT
=1mA-40mA
15
75
mV
25
150
mV
17.5V≤V
IN
≤30V,T
J
=25°C
Line Regulation
ΔV
OUT
20V≤V
IN
≤30V,T
J
=25°C
15
75
mV
Quiescent Current
I
Q
V
IN
=23V,I
OUT
=0mA,T
J
=25°C
2.2
6.5
mA
20V≤V
IN
≤30V
1.5
mA
Quiescent Current Change
ΔI
Q
1mA≤V
IN
≤40mA
0.1
mA
Output Noise Voltage
eN
10Hz≤f≤100kHz
90
μV
Temperature Coefficient of V
OUT
ΔV
O
/Δ
T
I
OUT
=5mA
-1.3
mV/°C
Ripple Rejection
RR
18.5V≤V
IN
≤28.5V,f=120Hz,
T
J
=25°C
34
63
dB
Dropout Voltage
V
D
T
J
=25°C
1.7
V
For UTC78L18
(V
IN
=27V, I
OUT
=40mA, 0°C<T
J
<150°C,
C1=0.33μF, Co=0.1μF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX
UNIT
17.64 18.0 18.36
V
T
J
=25°C
Output Voltage
V
OUT
21V≤V
IN
≤33V,I
OUT
=1mA-40mA
17.46
18.54
V
21V≤V
IN
≤V
MAX
,I
OUT
=1mA-70mA
17.46
18.54 V(note 2)
T
J
=25°C, I
OUT
=1mA-100mA
27
180
mV
Load Regulation
ΔV
OUT
T
J
=25°C, I
OUT
=1mA-40mA
19
90
mV
21V≤V
IN
≤33V,T
J
=25°C
145
300
mV
Line Regulation
ΔV
OUT
22V≤V
IN
≤33V,T
J
=25°C
135
250
mV
Quiescent Current
I
Q
V
IN
=27V,I
OUT
=0mA,T
J
=25°C
2.0
6.0
mA
21V≤V
IN
≤33V
1.5
mA
Quiescent Current Change
ΔI
Q
1mA≤V
IN
≤40mA
0.1
mA
Output Noise Voltage
eN
10Hz≤f≤100kHz
150
μV
Temperature Coefficient of V
OUT
ΔV
O
/Δ
T
I
OUT
=5mA
-1.8
mV/°C
Ripple Rejection
RR
23V≤V
IN
≤33V,f=120Hz,T
J
=25°C
34
48
dB
Dropout Voltage
V
D
T
J
=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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UTC-IC [ UNISONIC TECHNOLOGIES ]
